RE: indexed properties mini(est) HOWTO
What if I have a DynaAction form . In that case how do I handle the
getter/Setter method ...
-Original Message-
From: Rajat Pandit [mailto:[EMAIL PROTECTED]
Sent: Sunday, December 14, 2003 3:16 PM
To: Struts Users Mailing List
Subject: indexed properties mini(est) HOWTO
hello,
am positng a quick HOWTO to get started with using indexed properties,
as i guess almost everyone has had to deal with it atleast once.
pls post any suggestions/additions etc to improve on it. i might add on
the JSTL version a little version of it. (only the view part changes in
that case) just removes the inline scripting in that case.
In the View
---
html:text name=_put_form_bean_name_here_
property=%=bidAmount[ + currIdx + ]% /
_put_form_bean_name_here_ = put your form bean name here. currIdx = is the
indexId from the logic:iterate... bidAmount one of the values form the
indexed property, property
In the formBean
u should use the property has arrayList as it can grow in size as required.
its basically very obvious to guess what will be arguments for the
getter and the setter will be, if u look at the view
getter (in case bidAmount arraylist stores float type)
--
public Float getBidAmount(int idx) {
if (idx bidAmount.size()) {
return this.bidAmount[idx]
} else {
return new Float(0);
}
}
setter (this was the tricky one)
public void setBidAmount(int idx, Float value) {
// the while loop will increase the size
// to what is required
while (idx = this.bidAmount.size()) {
this.bidAmount.add(new Float(0));
}
// now just replace the value at the requried position.
this.bidAmount.set(idx,value);
}
--
Rajat Pandit | [EMAIL PROTECTED]
IT Consultant
Phone: +91 612 3117606
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RE: indexed properties mini(est) HOWTO
hello,
not very sure but iguess make ur custom form class by extending the
DynaActionForm and write your own getters and setters.
you would have to make it anyway coz (as far as i know) i couldnt find a
better way to do validatoin on indexed values. hence wrote it in the
validate() method.
What if I have a DynaAction form . In that case how do I handle the
getter/Setter method ...
-Original Message-
From: Rajat Pandit [mailto:[EMAIL PROTECTED]
Sent: Sunday, December 14, 2003 3:16 PM
To: Struts Users Mailing List
Subject: indexed properties mini(est) HOWTO
hello,
am positng a quick HOWTO to get started with using indexed properties,
as i guess almost everyone has had to deal with it atleast once.
pls post any suggestions/additions etc to improve on it. i might add on
the JSTL version a little version of it. (only the view part changes in
that case) just removes the inline scripting in that case.
In the View
---
html:text name=_put_form_bean_name_here_
property=%=bidAmount[ + currIdx + ]% /
_put_form_bean_name_here_ = put your form bean name here. currIdx = is
the
indexId from the logic:iterate... bidAmount one of the values form the
indexed property, property
In the formBean
u should use the property has arrayList as it can grow in size as
required.
its basically very obvious to guess what will be arguments for the
getter and the setter will be, if u look at the view
getter (in case bidAmount arraylist stores float type)
--
public Float getBidAmount(int idx) {
if (idx bidAmount.size()) {
return this.bidAmount[idx]
} else {
return new Float(0);
}
}
setter (this was the tricky one)
public void setBidAmount(int idx, Float value) {
// the while loop will increase the size
// to what is required
while (idx = this.bidAmount.size()) {
this.bidAmount.add(new Float(0));
}
// now just replace the value at the requried position.
this.bidAmount.set(idx,value);
}
--
Rajat Pandit | [EMAIL PROTECTED]
IT Consultant
Phone: +91 612 3117606
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: indexed properties mini(est) HOWTO
The wiki might be a good place for this:
http://nagoya.apache.org/wiki/apachewiki.cgi?StrutsNewFaqs
--- Rajat Pandit [EMAIL PROTECTED] wrote:
hello,
am positng a quick HOWTO to get started with using indexed properties,
as i guess almost everyone has had to deal with it atleast once.
pls post any suggestions/additions etc to improve on it. i might add on
the JSTL version a little version of it. (only the view part changes in
that case) just removes the inline scripting in that case.
In the View
---
html:text name=_put_form_bean_name_here_
property=%=bidAmount[ + currIdx + ]% /
_put_form_bean_name_here_ = put your form bean name here.
currIdx = is the indexId from the logic:iterate...
bidAmount one of the values form the indexed property, property
In the formBean
u should use the property has arrayList as it can grow in size as required.
its basically very obvious to guess what will be arguments for the
getter and the setter will be, if u look at the view
getter (in case bidAmount arraylist stores float type)
--
public Float getBidAmount(int idx) {
if (idx bidAmount.size()) {
return this.bidAmount[idx]
} else {
return new Float(0);
}
}
setter (this was the tricky one)
public void setBidAmount(int idx, Float value) {
// the while loop will increase the size
// to what is required
while (idx = this.bidAmount.size()) {
this.bidAmount.add(new Float(0));
}
// now just replace the value at the requried position.
this.bidAmount.set(idx,value);
}
--
Rajat Pandit | [EMAIL PROTECTED]
IT Consultant
Phone: +91 612 3117606
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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Re: Indexed Properties + Validator + JavaScript
Hi Vara, I have implemented client-side validations for indexed properties, but I have done it through custom validators. Look through the archive for a thread titled Validation of Indexed properties. I describe how I implemented the client side validations for indexed properties. Nick Vara Prasad Reddy To: Struts Users Mailing List [EMAIL PROTECTED] [EMAIL PROTECTED]cc: bs.net Subject: Indexed Properties + Validator + JavaScript 10/28/2003 07:47 AM Please respond to Struts Users Mailing List The validations for indexed properties are not fired on the client side, they are fired on the server side only. Is there a way I can do that on the client side. I am working on a PO screen with many line items. Regards Vara Prasad - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties + Validator + JavaScript
Nick http://www.mail-archive.com/[EMAIL PROTECTED]/msg19122.html is this the message you are talking about or something else ? Vara Prasad -Original Message- From: Nicholas L Mohler [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 28, 2003 6:38 PM To: Struts Users Mailing List Subject: Re: Indexed Properties + Validator + JavaScript Hi Vara, I have implemented client-side validations for indexed properties, but I have done it through custom validators. Look through the archive for a thread titled Validation of Indexed properties. I describe how I implemented the client side validations for indexed properties. Nick Vara Prasad Reddy To: Struts Users Mailing List [EMAIL PROTECTED] [EMAIL PROTECTED]cc: bs.net Subject: Indexed Properties + Validator + JavaScript 10/28/2003 07:47 AM Please respond to Struts Users Mailing List The validations for indexed properties are not fired on the client side, they are fired on the server side only. Is there a way I can do that on the client side. I am working on a PO screen with many line items. Regards Vara Prasad - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties + Validator + JavaScript
Vara, Sorry about that Vara. I thought I had sent this via the mailing list. This was based on a private exchange with another person. I have pasted my comments below. I don't guarantee that my method is the best way, but it works for me :-) Let me know if this helps. Nick I have done some indexed property validation, but I have primarily done this by creating custom validators. Many of my custom validators provide the same functionality, but I do customize it so that I can do what I need. For example, I have a required validation that uses the same(cloned) javascript code for client-side validation and for server-side validation, my java code uses the struts code to carry out the validation. My validations have a few variables that help my javascript or java class - some may be unneccessary , but I'm not yet slick enough with the DOM to get around them: indexed - is the property indexed (allows me to reuse the validation for non-indexed properties) tableName - name of the html table that contains the rows to be validated headerRowPresent - helps me count data rows in the table. listName- name of one row in the form property - used when the page is submitted and the indexed properties are loaded into the form. formCollectionName - name of the form property that contains the collection to be validated - I could probably combine with tableName In the Javascript: I get my indexed variable and if the property is indexed, I set up to loop through my table rows. I get the html table and get the row count so that I know how many data rows to validate. I then loop through each row: Construct the element name using the listName value + [ + indexId + ]. + propertyName Get the form element for the name and pass it to the validation function to apply the validation. If the property is not indexed, I get the form element and pass it to the validation function to apply the validation. I add any validation failure messsages to the fields array in the same way as the struts validations, but I tack on the row number for information since I validate all of the data rows. In my java validation class, I do similar things, but I only apply the indexed validations until one fails. My java validation uses reflection in quite a few places to invoke struts validations and to apply my own validations. The overall process is easier, though. 1) Determine if the property is indexed. If it is, then loop through the collection of objects (formCollectionName) that contain the property. 2) For each collection element, invoke the appropriate validation method until all of the rows are validated or a property fails validation. 3) If the property is not indexed, invoke the appropriate validation method for the property. Vara Prasad Reddy To: Struts Users Mailing List [EMAIL PROTECTED] [EMAIL PROTECTED]cc: bs.net Subject: RE: Indexed Properties + Validator + JavaScript 10/28/2003 08:30 AM Please respond to Struts Users Mailing List Nick http://www.mail-archive.com/[EMAIL PROTECTED]/msg19122.html is this the message you are talking about or something else ? Vara Prasad -Original Message- From: Nicholas L Mohler [mailto:[EMAIL PROTECTED] Sent: Tuesday, October 28, 2003 6:38 PM To: Struts Users Mailing List Subject: Re: Indexed Properties + Validator + JavaScript Hi Vara, I have implemented client-side
RE: Indexed properties help!
Hello fred,
Thanks for the reply, so just for clarifiation, if I am using a
property which will be indexed then the getters and setters will be a
little different from the usual set and get
Ie
public String getBidAmount(int index) {
return bidAmount[index];
}
And
public void setBidAmount(int index, String val) {
bidAmount[index] = val;
}
And have to implement the bidAmoutn as an array?
Protected String[] bidAmount;
Do confirm if igot that right?
Thanks once again for ur time.
-Original Message-
From: Frederic Dernbach [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 26, 2003 8:23 AM
To: Struts Users Mailing List
Subject: Re: Indexed properties help!
Rajat,
Here is an example of an indexed property called 'signal' (in my
application it holds complex objects, not simple strings or integers):
public OrderedSignalBean getSignal(int index) {
while( index = this.getSignals().size() ){
this.getSignals().add(new OrderedSignalBean());
}
return (OrderedSignalBean) this.getSignals().get(index);
}
public void setSignal(int index, OrderedSignalBean signal) {
while ( index = signals.size() ){
signals.add(new OrderedSignalBean());
}
signals.set(index, signal);
}
The 'signals' member is private and is of type 'ArrayList'. It is
created in the form's contructor and the reset method of the form :
signals = new ArrayList().
The setter and getter methods of the indexed property perform so-clled
lazy-initialization so you do not have to worry about the siez of the
array list.
Hope this helps.
Fred
Le dim 26/10/2003 à 16:54, Rajat Pandit a écrit :
Hello,
I am pasting some excepts from the struts documentation. It would be
really great if someone could help me clear this.
Question 1:
!-- snip --
The indexed tags feature is provided by several tags that have an
optional boolean indexed attribute. This is only legal when inside a
logic:iterate tag. When the indexed attribute is true, then the
tag will incorporate the loop index into the resulting HTML component.
The several tags that support the indexed attribute can be broken
into three groups, split by what they do to incorporate the loop index
into the resulting HTML component.
Group 1 Group 2 Group 3
checkbox button link
file image
hiddensubmit
password
radio
select
text
textarea
In Group 1, all of these tags will generate an HTML name attribute
of name[nn].property. The value of each tag will also be initialized
by the getter method corresponding to that property specification.
!--snip --
So if I have name[nn].property, that essentially means I am creating
an array of the form. But what I really need is an array of property,
instead of the bean.
Question 2:
How should the property be declared in the the actionForm if it has to
receive an array of information.
thanks
Rajat Pandit | [EMAIL PROTECTED]
+91 612 3117606
[ Developer and Part Time Human Being]
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RE: Indexed properties help!
Looks OK.
However, I would not use a basic array (private members) but ArrayList,
HashMap or LinkedList, etc.
I did not manage to have arrays working (the lazy initialization
failed).
You will have problems in JSPs.
Le dim 26/10/2003 18:04, Rajat Pandit a crit :
Hello fred,
Thanks for the reply, so just for clarifiation, if I am using a
property which will be indexed then the getters and setters will be a
little different from the usual set and get
Ie
public String getBidAmount(int index) {
return bidAmount[index];
}
And
public void setBidAmount(int index, String val) {
bidAmount[index] = val;
}
And have to implement the bidAmoutn as an array?
Protected String[] bidAmount;
Do confirm if igot that right?
Thanks once again for ur time.
-Original Message-
From: Frederic Dernbach [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 26, 2003 8:23 AM
To: Struts Users Mailing List
Subject: Re: Indexed properties help!
Rajat,
Here is an example of an indexed property called 'signal' (in my
application it holds complex objects, not simple strings or integers):
public OrderedSignalBean getSignal(int index) {
while( index = this.getSignals().size() ){
this.getSignals().add(new OrderedSignalBean());
}
return (OrderedSignalBean) this.getSignals().get(index);
}
public void setSignal(int index, OrderedSignalBean signal) {
while ( index = signals.size() ){
signals.add(new OrderedSignalBean());
}
signals.set(index, signal);
}
The 'signals' member is private and is of type 'ArrayList'. It is
created in the form's contructor and the reset method of the form :
signals = new ArrayList().
The setter and getter methods of the indexed property perform so-clled
lazy-initialization so you do not have to worry about the siez of the
array list.
Hope this helps.
Fred
Le dim 26/10/2003 16:54, Rajat Pandit a crit :
Hello,
I am pasting some excepts from the struts documentation. It would be
really great if someone could help me clear this.
Question 1:
!-- snip --
The indexed tags feature is provided by several tags that have an
optional boolean indexed attribute. This is only legal when inside a
logic:iterate tag. When the indexed attribute is true, then the
tag will incorporate the loop index into the resulting HTML component.
The several tags that support the indexed attribute can be broken
into three groups, split by what they do to incorporate the loop index
into the resulting HTML component.
Group 1 Group 2 Group 3
checkboxbutton link
fileimage
hidden submit
password
radio
select
text
textarea
In Group 1, all of these tags will generate an HTML name attribute
of name[nn].property. The value of each tag will also be initialized
by the getter method corresponding to that property specification.
!--snip --
So if I have name[nn].property, that essentially means I am creating
an array of the form. But what I really need is an array of property,
instead of the bean.
Question 2:
How should the property be declared in the the actionForm if it has to
receive an array of information.
thanks
Rajat Pandit | [EMAIL PROTECTED]
+91 612 3117606
[ Developer and Part Time Human Being]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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To unsubscribe, e-mail: [EMAIL PROTECTED]
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Re: Indexed properties help!
Rajat,
Here is an example of an indexed property called 'signal' (in my
application it holds complex objects, not simple strings or integers):
public OrderedSignalBean getSignal(int index) {
while( index = this.getSignals().size() ){
this.getSignals().add(new OrderedSignalBean());
}
return (OrderedSignalBean) this.getSignals().get(index);
}
public void setSignal(int index, OrderedSignalBean signal) {
while ( index = signals.size() ){
signals.add(new OrderedSignalBean());
}
signals.set(index, signal);
}
The 'signals' member is private and is of type 'ArrayList'. It is
created in the form's contructor and the reset method of the form :
signals = new ArrayList().
The setter and getter methods of the indexed property perform so-clled
lazy-initialization so you do not have to worry about the siez of the
array list.
Hope this helps.
Fred
Le dim 26/10/2003 16:54, Rajat Pandit a crit :
Hello,
I am pasting some excepts from the struts documentation. It would be
really great if someone could help me clear this.
Question 1:
!-- snip --
The indexed tags feature is provided by several tags that have an
optional boolean indexed attribute. This is only legal when inside a
logic:iterate tag. When the indexed attribute is true, then the
tag will incorporate the loop index into the resulting HTML component.
The several tags that support the indexed attribute can be broken into
three groups, split by what they do to incorporate the loop index into
the resulting HTML component.
Group 1 Group 2 Group 3
checkbox button link
file image
hiddensubmit
password
radio
select
text
textarea
In Group 1, all of these tags will generate an HTML name attribute of
name[nn].property. The value of each tag will also be initialized by
the getter method corresponding to that property specification.
!--snip --
So if I have name[nn].property, that essentially means I am creating an
array of the form. But what I really need is an array of property,
instead of the bean.
Question 2:
How should the property be declared in the the actionForm if it has to
receive an array of information.
thanks
Rajat Pandit | [EMAIL PROTECTED]
+91 612 3117606
[ Developer and Part Time Human Being]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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Re: Indexed Properties examples?
i have same question as you , do you have get right answer?
my resolve is like this :
form bean -
private ArrayList awards = new ArrayList (5);
public void reset(ActionMapping actionMapping, HttpServletRequest
httpServletRequest) {
awards .add(0,new AwardMasView ());
awards .add(1,new AwardMasView ());
awards .add(2,new AwardMasView ());
awards .add(3,new AwardMasView ());
awards .add(4,new AwardMasView ());
}
the program can right work, but ArrayList's length is fixed .
if you have get right answer ,would you maind share whit me.
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RE: Indexed Properties examples?
Search the user archive...
This question has been answered many times(Use of lazy lists is one of the ways to
manange the list runtime..)
-Original Message-
From: hsc [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 21, 2003 9:29 AM
To: [EMAIL PROTECTED]
Subject: Re: Indexed Properties examples?
i have same question as you , do you have get right answer?
my resolve is like this :
form bean -
private ArrayList awards = new ArrayList (5);
public void reset(ActionMapping actionMapping, HttpServletRequest
httpServletRequest) {
awards .add(0,new AwardMasView ());
awards .add(1,new AwardMasView ());
awards .add(2,new AwardMasView ());
awards .add(3,new AwardMasView ());
awards .add(4,new AwardMasView ());
}
the program can right work, but ArrayList's length is fixed .
if you have get right answer ,would you maind share whit me.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties examples?
try looking at www.keyboardmonkey.com
I believe the example on nested tag will help you...
Best Regards,
Benz Lim
-Original Message-
From: hsc [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 21, 2003 3:29 PM
To: [EMAIL PROTECTED]
Subject: Re: Indexed Properties examples?
i have same question as you , do you have get right answer?
my resolve is like this :
form bean -
private ArrayList awards = new ArrayList (5);
public void reset(ActionMapping actionMapping, HttpServletRequest
httpServletRequest) {
awards .add(0,new AwardMasView ());
awards .add(1,new AwardMasView ());
awards .add(2,new AwardMasView ());
awards .add(3,new AwardMasView ());
awards .add(4,new AwardMasView ());
}
the program can right work, but ArrayList's length is fixed .
if you have get right answer ,would you maind share whit me.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties examples?
OK, I faced the same problems you a few weeks ago (I was a total newbee
with indexed properties and I spent 10 full days on the problem - I'm
still hot on this one !).
I haven't read the initial post and I hope my input will be useful to
you.
Regarding the form :
1/ I create an empty array list in the constructor :
ArrayList awards = new ArrayList();
2/ I do the same in the reset() method. Create the an empty ArrayList.
Do not set the list to null items like you proposed, otherwise you will
have problems with the BeanUtils.populate() method when forwarding a
struts request.Reset the list elements to null only for boolean
elements.
3/ Have the following the setter and getter methods in your form (and
perform laying list initialization for the 'Award' form property) :
public ArrayList getAwards() {
return awards
}
public void setAwards (ArrayList awards) {
this.awards = awards;
}
public AwardMasView getAward(int index) {
while( index = awards.size() ){
awards.add(new AwardMasView());
}
return (AwardLasView) awards.get(index);
}
public void setAward(int index, AwardMasView object) {
while ( index = awards.size() ){
awards.add(new AwardMasView());
}
awards.set(index, object);
}
In a JSp you can now use tboth the 'Awards' and 'Award' form property
('Award' being the INDEXED property) :
logic:iterate name=youtformname
property=awards
id=award
type=path.to.your.form.yourformname
html:hidden name=award property=youtpropertyname indexed=true/
/logic:iterate
Note that the 'id' attribute of the login:iterate has to be equal to
the name of your indexed property ('Award').
And do not forget to include every indexed property in your form (liek
the example above) if you are using bean:write tag to display your
indexed property, otherwise you will have problems with
BeanUtils.populate() methods.
Cheers,
Fred
Le mar 21/10/2003 09:29, hsc a crit :
i have same question as you , do you have get right answer?
my resolve is like this :
form bean -
private ArrayList awards = new ArrayList (5);
public void reset(ActionMapping actionMapping, HttpServletRequest
httpServletRequest) {
awards .add(0,new AwardMasView ());
awards .add(1,new AwardMasView ());
awards .add(2,new AwardMasView ());
awards .add(3,new AwardMasView ());
awards .add(4,new AwardMasView ());
}
the program can right work, but ArrayList's length is fixed .
if you have get right answer ,would you maind share whit me.
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties examples?
If you're using struts 1.1 you can define a form property as an
arrayList to do the same thing..
form-property name=myproperty type=java.util.ArrayList /
...
action name=myForm scope=session ..
..
ArrayList myList = new ArrayList()
theForm.set(myproperty,myList);
..
logic:iterate id=foo name=myForm property=myproperty
..
Cheers Mark
On Tuesday, October 21, 2003, at 12:33 PM, Frederic Dernbach wrote:
OK, I faced the same problems you a few weeks ago (I was a total newbee
with indexed properties and I spent 10 full days on the problem - I'm
still hot on this one !).
I haven't read the initial post and I hope my input will be useful to
you.
Regarding the form :
1/ I create an empty array list in the constructor :
ArrayList awards = new ArrayList();
2/ I do the same in the reset() method. Create the an empty ArrayList.
Do not set the list to null items like you proposed, otherwise you will
have problems with the BeanUtils.populate() method when forwarding a
struts request.Reset the list elements to null only for boolean
elements.
3/ Have the following the setter and getter methods in your form (and
perform laying list initialization for the 'Award' form property) :
public ArrayList getAwards() {
return awards
}
public void setAwards (ArrayList awards) {
this.awards = awards;
}
public AwardMasView getAward(int index) {
while( index = awards.size() ){
awards.add(new AwardMasView());
}
return (AwardLasView) awards.get(index);
}
public void setAward(int index, AwardMasView object) {
while ( index = awards.size() ){
awards.add(new AwardMasView());
}
awards.set(index, object);
}
In a JSp you can now use tboth the 'Awards' and 'Award' form property
('Award' being the INDEXED property) :
logic:iterate name=youtformname
property=awards
id=award
type=path.to.your.form.yourformname
html:hidden name=award property=youtpropertynameindexed=true/
/logic:iterate
Note that the 'id' attribute of the login:iterate has to be equal to
the name of your indexed property ('Award').
And do not forget to include every indexed property in your form (liek
the example above) if you are using bean:write tag to display your
indexed property, otherwise you will have problems with
BeanUtils.populate() methods.
Cheers,
Fred
Le mar 21/10/2003 à 09:29, hsc a écrit :
i have same question as you , do you have get right answer?
my resolve is like this :
form bean -
private ArrayList awards = new ArrayList (5);
public void reset(ActionMapping actionMapping, HttpServletRequest
httpServletRequest) {
awards .add(0,new AwardMasView ());
awards .add(1,new AwardMasView ());
awards .add(2,new AwardMasView ());
awards .add(3,new AwardMasView ());
awards .add(4,new AwardMasView ());
}
the program can right work, but ArrayList's length is fixed .
if you have get right answer ,would you maind share whit me.
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RE: Indexed Properties examples?
Try changing the property value reference in your JSP to reference
awardIndexed instead of AwardIndexed. That might help, but I'm not
certain.
-Original Message-
From: Michael Blair [mailto:[EMAIL PROTECTED]
I am still trying to get this to work. I simply want to
display records in
table format in a browser and be able to change the data, do
a submit and
have access to the changes back in the action. Currently I am
getting :
HTTP ERROR: 500 No getter method for property
AwardIndexed[0].safAwardCode
of bean awards
If I can offer anymore info, please ask. Also, if anyone has a working
example of this I would love to see the snippets of the jsp,
formbean and
any other relevant parts.
Mike
Here are some snippets.
.jsp -
logic:iterate name=awardMasResultsForm property=awards
id=awards
scope=session indexId=ctr
bean:write name=awards property='%=
AwardIndexed[ + ctr +
].safAwardCode %'/
html:checkbox name=awards property='%=
AwardIndexed[ + ctr +
].deleteRecord %'/
form bean -
private ArrayList awards;
public void setAwardIndexed(int index, AwardMasView ob){
System.out.println(setAward);
this.awards.set(index, ob);
}
public AwardMasView getAwardIndexed(int index){
System.out.println(getAward);
return (AwardMasView)this.awards.get(index);
}
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Re: Indexed Properties
Atta, It sounds to me like you have it. As long as your names match up, it should work fine. Ajay has given a full code example that looks good. Nick atta-ur rehman [EMAIL PROTECTED]To: Struts Users Mailing List [EMAIL PROTECTED] com cc: Subject: Re: Indexed Properties 07/28/2003 08:44 PM Please respond to Struts Users Mailing List Yes, I currently have two independent String arrays for blockName and blockType. Putting them, and all the other block related properties, is what seems to be the right thing to do! So you have confirmed. here is what i have understood from your text: 1) my form would have blocks property that would be a collection of Block beans 2) iterating each block in the blocks collection i can sure display each block with indexed=true directive for text boxes and dropdowns. 3) now for the submission part i'd need to have setBlockType(int, string) and getBlockType(int) and same for the rest of properties. The name of property in the Block Form and name of the property in the Block Bean must match. 4) and it should work? I've had my head stuck in my computer whole day today and i'm barely able to write this email :) Tommorrow morning i'd come back and confirm it by running it. meanwhile I'd appreciate if you could confirm these 4 points i've noted above! Thankyou very much for your help. It really did help. Regards, ATTA - Original Message - From: Nick [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Monday, July 28, 2003 5:08 PM Subject: RE: Indexed Properties Hi Atta, No problem with the assistance. Just hope that I can be helpful :-) In the cases where I use indexed properties, the property is part of a larger object. It sounds to me like you have two arrays in your form class: one for blockName and one for blockType. I would suggest creating a bean with the two properties, and then have a collection of those objects in your form. Building on my previous example, you'd have something like this: logic:iterate name=blocks id=oneBlock type=com.myco.beans.Block td html:text name=oneBlock property=blockName indexed =true/ /td td html:select name=oneBlock property=blockType indexed=true size=1 html:options name=myForm property=blockTypes/ /html:select. /td /logic:iterate This example assumes your collection of blockTypes is part of your form, but it could be a collection that was in request/session/application scope. You would create form entries for the collection like you implemented in our previous emails. I have almost this exact code in a few places and it works well. Hope this helps. Nick -Original Message- From: atta-ur rehman [mailto:[EMAIL PROTECTED] Sent: Monday, July 28, 2003 3:37 PM To: Struts Users Mailing List Subject: Re: Indexed Properties Thanks, for the reply. Okay, here is the background. I'm trying to learn the user of Indexed Properties. Why I'm doing that? Well, I have a form that lists, let's say for the sake of simplicity, Block Name and Block Type columns. Block Name is a readonly text field while the Block Type is a dropdown list box with a set of reference values coming from the database. User can have n blocks on the page and he can change the block type of any block on the page. user cannot define a new block on this page. In my form I've got String[] getter/setters for blockName and blockType properties. In my action, I set both these arrays
Re: Indexed Properties
Hello again Nick. Well i've come a step forward in that i've been able to successfully show the jsp page using index=true for all the rows and submit the form without any errors too: logic:iterate name=theForm property=blocks id=block type=test.Block tr td align=center html:text property=id name=block indexed=true / /td td html:text property=name name=block indexed=true / /td td html:select property=category name=block indexed=true html:options collection=optionList property=value labelProperty=label/ /html:select /td /tr /logic:iterate works like a charm! What i'm still missing what is updated when i submit the form? where can i get updated values from? my ActionForm has list attirbute called blocks each element in the list is a Block bean object. The Block bean has getter/setters for id, name and category. In ActionForm I also included setCategory(int) and getCategory(int, string) which doesn't seem to be called at all! something obvious that i'm missing? Thanks. ATTA - Original Message - From: Nicholas L Mohler [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Tuesday, July 29, 2003 2:57 AM Subject: Re: Indexed Properties Atta, It sounds to me like you have it. As long as your names match up, it should work fine. Ajay has given a full code example that looks good. Nick atta-ur rehman [EMAIL PROTECTED]To: Struts Users Mailing List [EMAIL PROTECTED] com cc: Subject: Re: Indexed Properties 07/28/2003 08:44 PM Please respond to Struts Users Mailing List Yes, I currently have two independent String arrays for blockName and blockType. Putting them, and all the other block related properties, is what seems to be the right thing to do! So you have confirmed. here is what i have understood from your text: 1) my form would have blocks property that would be a collection of Block beans 2) iterating each block in the blocks collection i can sure display each block with indexed=true directive for text boxes and dropdowns. 3) now for the submission part i'd need to have setBlockType(int, string) and getBlockType(int) and same for the rest of properties. The name of property in the Block Form and name of the property in the Block Bean must match. 4) and it should work? I've had my head stuck in my computer whole day today and i'm barely able to write this email :) Tommorrow morning i'd come back and confirm it by running it. meanwhile I'd appreciate if you could confirm these 4 points i've noted above! Thankyou very much for your help. It really did help. Regards, ATTA - Original Message - From: Nick [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Monday, July 28, 2003 5:08 PM Subject: RE: Indexed Properties Hi Atta, No problem with the assistance. Just hope that I can be helpful :-) In the cases where I use indexed properties, the property is part of a larger object. It sounds to me like you have two arrays in your form class: one for blockName and one for blockType. I would suggest creating a bean with the two properties, and then have a collection of those objects in your form. Building on my previous example, you'd have something like this: logic:iterate name=blocks id=oneBlock type=com.myco.beans.Block td html:text name=oneBlock property=blockName indexed =true/ /td td html:select name=oneBlock property=blockType indexed=true size=1 html:options name=myForm property=blockTypes/ /html:select. /td /logic:iterate This example assumes your collection of blockTypes is part of your form, but it could be a collection that was in request/session/application scope. You would create form entries for the collection like you implemented in our previous emails. I have almost this exact code in a few places and it works well. Hope this helps. Nick -Original Message- From: atta-ur rehman [mailto:[EMAIL PROTECTED] Sent: Monday, July 28, 2003 3:37 PM To: Struts Users Mailing List Subject: Re: Indexed Properties Thanks, for the reply. Okay, here is the background. I'm trying to learn the user of Indexed Properties. Why I'm doing that? Well, I have a form that lists, let's say for the sake of simplicity, Block Name and Block Type columns. Block Name is a readonly text field while the Block Type is a dropdown list box with a set of reference values coming from the database. User can have n blocks on the page and he can change the block type of any block on the page. user cannot
RE: Indexed Properties
What i'm still missing what is updated when i submit the form? where can i get updated values from? my ActionForm has list attirbute called blocks each element in the list is a Block bean object. The Block bean has getter/setters for id, name and category. Two strategies: 1. Update everything every time you submit regardless of whether the information changed or not 2. Keep the previous values around and compare the values submitted to the previous ones. Then only update the beans that changed. You could do this in a number of ways. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
Thanks.
you see my problem is i don't know how to get the updated values when the
form is submitted? my beans collection is updated, my indexed getter/setter
are not called? so where are the new values or even the same values when i
submit without changing anything at all on the form?
this is my Action code that i'm using to get values:
TestForm tf = (TestForm) form;
HttpSession session = request.getSession();
if (tf != null tf.getBlocks() != null) {
List list = tf.getBlocks();
Block block;
for (int i = 0; i list.size(); i++) {
block = (Block) list.get(i);
System.out.println(TestAction.execute Block: +
block.getId() + , + block.getName() + , +
block.getCategory());
}
} // if (tf != null tf.getBlocks() != null)
but this code always prints the values that i set the first time page was
shown!
ATTA
- Original Message -
From: Paananen, Tero [EMAIL PROTECTED]
To: 'Struts Users Mailing List' [EMAIL PROTECTED]
Sent: Tuesday, July 29, 2003 10:04 AM
Subject: RE: Indexed Properties
What i'm still missing what is updated when i submit the
form? where can i
get updated values from? my ActionForm has list attirbute
called blocks
each element in the list is a Block bean object. The
Block bean has getter/setters for id, name and category.
Two strategies:
1. Update everything every time you submit regardless of
whether the information changed or not
2. Keep the previous values around and compare the values
submitted to the previous ones. Then only update the beans
that changed. You could do this in a number of ways.
-TPP
-
This email may contain confidential and privileged material for the sole
use of the intended recipient(s). Any review, use, retention, distribution
or disclosure by others is strictly prohibited. If you are not the intended
recipient (or authorized to receive for the recipient), please contact the
sender by reply email and delete all copies of this message. Also, email is
susceptible to data corruption, interception, tampering, unauthorized
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are not liable for any such corruption, interception, tampering, amendment
or viruses or any consequence thereof.
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RE: Indexed Properties
but this code always prints the values that i set the first time page was shown! Beats me...the code looked fine to me. Maybe something wrong with your action mappings and form bean configurations? Or the JSP the values are changed on. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
so you are saying that ideally the the beans collection in my ActionForm should be updated on form submission? - Original Message - From: Paananen, Tero [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Tuesday, July 29, 2003 10:30 AM Subject: RE: Indexed Properties but this code always prints the values that i set the first time page was shown! Beats me...the code looked fine to me. Maybe something wrong with your action mappings and form bean configurations? Or the JSP the values are changed on. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties
so you are saying that ideally the the beans collection in my ActionForm should be updated on form submission? The attribute values in the beans held in the collection should change on form submission, yes. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
Okay. my form-bean definition looks like: form-bean name=testForm type=test.TestForm/ while the action is: action path=/test type=test.TestAction name=testForm scope=session validate=false input=/test.jsp forward name=failure path=/mainMenu.jsp/ forward name=success path=/test.jsp/ /action my form class extends ActionForm. any ideas? ATTA - Original Message - From: Paananen, Tero [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Tuesday, July 29, 2003 10:43 AM Subject: RE: Indexed Properties so you are saying that ideally the the beans collection in my ActionForm should be updated on form submission? The attribute values in the beans held in the collection should change on form submission, yes. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
Hi Atta
Just to clatify:
1) You have a form that contains a blocks property which is a collection
of test.Block objects.
2) The test.Block object has the following properties(get/set methods
for each): id, name, and category
3) As we discussesed in our earlier emails, you have the get/set methods
for the blocks property in your form.
4) You also have a singular getBlock method that takes an int (index)
and returns the Block object from the collection for the given index.
A couple possible causes for the error:
- Item 4) is not implemented correctly. You need the method shown below.
Note that since your form is in the session, you shouldn't need the
sizing logic.
public Block getBlock(int index) {
while (index = this.blocks.size()) {
this.blocks.add(new Block());
}
return (Block) this.blocks.get(index);
}
- When looking at your page, look at the source and confirm that your
indexed properties are named correctly. You should see block[0].id,
block[0].name, block[0].category.
If none of this helps, I'm not sure where else to look. It sounds like
everything else is lining up...
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users Mailing List
[EMAIL PROTECTED]
com cc:
Subject: Re: Indexed Properties
07/29/2003 12:57
PM
Please respond to
Struts Users
Mailing List
Hello again Nick.
Well i've come a step forward in that i've been able to successfully show
the jsp page using index=true for all the rows and submit the form
without
any errors too:
logic:iterate name=theForm property=blocks id=block
type=test.Block
tr
td align=center
html:text property=id name=block indexed=true /
/td
td
html:text property=name name=block indexed=true /
/td
td
html:select property=category name=block indexed=true
html:options collection=optionList property=value
labelProperty=label/
/html:select
/td
/tr
/logic:iterate
works like a charm!
What i'm still missing what is updated when i submit the form? where can i
get updated values from? my ActionForm has list attirbute called blocks
each element in the list is a Block bean object. The Block bean has
getter/setters for id, name and category.
In ActionForm I also included setCategory(int) and getCategory(int, string)
which doesn't seem to be called at all!
something obvious that i'm missing?
Thanks.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Tuesday, July 29, 2003 2:57 AM
Subject: Re: Indexed Properties
Atta,
It sounds to me like you have it. As long as your names match up, it
should work fine. Ajay has given a full code example that looks good.
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users
Mailing List [EMAIL PROTECTED]
com cc:
Subject: Re: Indexed
Properties
07/28/2003 08:44
PM
Please respond to
Struts Users
Mailing List
Yes, I currently have two independent String arrays for blockName and
blockType. Putting them, and all the other block related properties, is
what
seems to be the right thing to do! So you have confirmed.
here is what i have understood from your text:
1) my form would have blocks property that would be a collection of
Block
beans
2) iterating each block
Re: Indexed Properties
Bingo!
The deceptive ActionForm.getBlock(int):Block was not there. Just added it
and wow!
This is opened up a whole paradigm for me. I can see how easy and manageable
code becomes not to mention its reduced size! Its just what i've been
looking for, for quite sometime! Learning new things pays, after all ;)
My sincere thanks for your help and patience! It took some time, but was
worth it!
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Tuesday, July 29, 2003 11:19 AM
Subject: Re: Indexed Properties
Hi Atta
Just to clatify:
1) You have a form that contains a blocks property which is a
collection
of test.Block objects.
2) The test.Block object has the following properties(get/set methods
for each): id, name, and category
3) As we discussesed in our earlier emails, you have the get/set methods
for the blocks property in your form.
4) You also have a singular getBlock method that takes an int (index)
and returns the Block object from the collection for the given index.
A couple possible causes for the error:
- Item 4) is not implemented correctly. You need the method shown below.
Note that since your form is in the session, you shouldn't need the
sizing logic.
public Block getBlock(int index) {
while (index = this.blocks.size()) {
this.blocks.add(new Block());
}
return (Block) this.blocks.get(index);
}
- When looking at your page, look at the source and confirm that your
indexed properties are named correctly. You should see block[0].id,
block[0].name, block[0].category.
If none of this helps, I'm not sure where else to look. It sounds like
everything else is lining up...
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users
Mailing List [EMAIL PROTECTED]
com cc:
Subject: Re: Indexed
Properties
07/29/2003 12:57
PM
Please respond to
Struts Users
Mailing List
Hello again Nick.
Well i've come a step forward in that i've been able to successfully show
the jsp page using index=true for all the rows and submit the form
without
any errors too:
logic:iterate name=theForm property=blocks id=block
type=test.Block
tr
td align=center
html:text property=id name=block indexed=true /
/td
td
html:text property=name name=block indexed=true /
/td
td
html:select property=category name=block indexed=true
html:options collection=optionList property=value
labelProperty=label/
/html:select
/td
/tr
/logic:iterate
works like a charm!
What i'm still missing what is updated when i submit the form? where can i
get updated values from? my ActionForm has list attirbute called blocks
each element in the list is a Block bean object. The Block bean has
getter/setters for id, name and category.
In ActionForm I also included setCategory(int) and getCategory(int,
string)
which doesn't seem to be called at all!
something obvious that i'm missing?
Thanks.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Tuesday, July 29, 2003 2:57 AM
Subject: Re: Indexed Properties
Atta,
It sounds to me like you have it. As long as your names match up, it
should work fine. Ajay has given a full code example that looks good.
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users
Mailing List [EMAIL PROTECTED]
com cc:
Subject: Re: Indexed
Properties
07/28/2003 08:44
PM
Please respond to
Struts Users
Mailing List
Yes, I currently have two independent String arrays for blockName and
blockType. Putting them, and all the other block related properties, is
what
seems to be the right thing to do! So you have confirmed.
here is what i have understood from your text:
1) my form would have blocks property that would be a collection of
Block
beans
2) iterating each block in the blocks collection i can sure display each
block with indexed=true directive for text boxes and dropdowns.
3) now for the submission part i'd need to have setBlockType(int,
string)
and getBlockType(int) and same for the rest of properties. The name of
property in the Block Form and name of the property in the Block Bean
must
match.
4) and it should work?
I've had my head stuck in my computer whole day today and i'm barely
able
to
write
RE: Indexed Properties
I've been reading an indexed properties article at: http://jakarta.apache.org/struts/faqs/indexedprops.html Also read http://www.developer.com/java/other/article.php/2233591 Very helpful. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
Thanks. It was helpful. But it still leaves me thinking if Indexed Properties are meant ONLY for DynaActionForm type of forms? I'm still unable to use them by using an array in my conventional ActionForm. ATTA - Original Message - From: Paananen, Tero [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Monday, July 28, 2003 10:12 AM Subject: RE: Indexed Properties I've been reading an indexed properties article at: http://jakarta.apache.org/struts/faqs/indexedprops.html Also read http://www.developer.com/java/other/article.php/2233591 Very helpful. -TPP - This email may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, retention, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Also, email is susceptible to data corruption, interception, tampering, unauthorized amendment and viruses. We only send and receive emails on the basis that we are not liable for any such corruption, interception, tampering, amendment or viruses or any consequence thereof. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
Atta, You can use indexed properties in your ActionForm class. The key is having all of the correct methods in your form class. 1) Getter and setter: You need a get/Set method for the collection that you refer to in your jsp. for example: public Collection getLocations() public void setLocations(Collection locs) 2) Getter and setter for one instance in the collection. The name that you use must match the name you define in your jsp as a single instance from the collection (specified as the id). For example: logic:iterate name=locations id=oneLocation type=com.myco.toolkits.beans.Location td html:text name=oneLocation property=locationName indexed =true/ /td td html:text name=oneLocation property=locationAddress indexed=true/ /td /logic:iterate Your form should in this case have the following get/set methods: public com.myco.toolkits.beans.Location getOneLocation(int index) public void setOneLocation(int index, com.myco.toolkits.beans.Location oneLocation) Your code may never use either of the oneLocation methods, but they are important for Struts. When your page is submitted, your two indexed properties will be submitted as oneLocation[ix].locationName oneLocation[ix].locationAddress where ix is the index of the row (0-10 for example). As Struts proceses the indexed items, Struts will use the getOneLocation method to get the Collection instance for the provided index. This method must resize the collection as needed and then return the object for the provided index. For example, if your collection has no objects and the getter receives an index of 2, the method should load the first three (0, 1, 2) collection locations with an initialized object and return the third object. Struts will then populate the appropriate property in that object. As an aside, I tend to use the ArrayList object as my collection type when working with indexed properties, but I know that the Vector works equally well. A simple array will work fine, but the logic to expand the size is a little more involved. Let me know if this helps. Nick - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties
Thanks very much Nick! It was indeed helpful. I was missing getter/setter
for individual list items!
now my form has following methods:
private String[] fruit = {Apple, Orange, Banana};
public List getFruits() {
return Arrays.asList(this.fruit);
}
public void setFruits(List l) {
this.fruit = (String[]) l.toArray();
}
public String getFruit(int index) {
if (this.fruit == null) return null;
return this.fruit[index];
}
public void setFruit(int index, String f) {
this.fruit[index] = f;
}
my JSP has following has this html:iterator:
logic:iterate name=theForm property=fruits id=oneF
type=java.lang.String
tr
td align=center
hi!
/td
td
html:text property=fruit name=oneF indexed=true /
/td
/tr
/logic:iterate
and exception i get is this:
javax.servlet.jsp.JspException: No getter method for property fruit of bean
oneF
at org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:968)
i think it has to do with the fact that my individual fruit is a string
object rather than being a bean in itself if some getter method(s)?
can you see what's going wrong!
Thanks again.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, July 28, 2003 11:58 AM
Subject: Re: Indexed Properties
Atta,
You can use indexed properties in your ActionForm class. The key is
having
all of the correct methods in your form class.
1) Getter and setter: You need a get/Set method for the collection that
you refer to in your jsp. for example:
public Collection getLocations()
public void setLocations(Collection locs)
2) Getter and setter for one instance in the collection. The name that
you
use must match the name you define in your jsp as a single instance from
the collection (specified as the id). For example:
logic:iterate name=locations id=oneLocation
type=com.myco.toolkits.beans.Location
td
html:text name=oneLocation property=locationName indexed
=true/
/td
td
html:text name=oneLocation property=locationAddress
indexed=true/
/td
/logic:iterate
Your form should in this case have the following get/set methods:
public com.myco.toolkits.beans.Location getOneLocation(int index)
public void setOneLocation(int index, com.myco.toolkits.beans.Location
oneLocation)
Your code may never use either of the oneLocation methods, but they are
important for Struts. When your page is submitted, your two indexed
properties will be submitted as oneLocation[ix].locationName
oneLocation[ix].locationAddress where ix is the index of the row (0-10 for
example). As Struts proceses the indexed items, Struts will use the
getOneLocation method to get the Collection instance for the provided
index. This method must resize the collection as needed and then return
the object for the provided index. For example, if your collection has no
objects and the getter receives an index of 2, the method should load the
first three (0, 1, 2) collection locations with an initialized object and
return the third object. Struts will then populate the appropriate
property in that object.
As an aside, I tend to use the ArrayList object as my collection type when
working with indexed properties, but I know that the Vector works equally
well. A simple array will work fine, but the logic to expand the size is
a
little more involved.
Let me know if this helps.
Nick
-
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For additional commands, e-mail: [EMAIL PROTECTED]
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Re: Indexed Properties
Atta,
The complaint you are getting is because the property fruit is not a
property of the oneF bean. That the oneF object is not a bean with
properties will give you problems. Depending on your goal, you need to do
something different. What are you trying to do?
I'm off work in a minute, but I'll check messages at home later this
evening and see if I can help at all.
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users Mailing List
[EMAIL PROTECTED]
com cc:
Subject: Re: Indexed Properties
07/28/2003 03:44
PM
Please respond to
Struts Users
Mailing List
Thanks very much Nick! It was indeed helpful. I was missing getter/setter
for individual list items!
now my form has following methods:
private String[] fruit = {Apple, Orange, Banana};
public List getFruits() {
return Arrays.asList(this.fruit);
}
public void setFruits(List l) {
this.fruit = (String[]) l.toArray();
}
public String getFruit(int index) {
if (this.fruit == null) return null;
return this.fruit[index];
}
public void setFruit(int index, String f) {
this.fruit[index] = f;
}
my JSP has following has this html:iterator:
logic:iterate name=theForm property=fruits id=oneF
type=java.lang.String
tr
td align=center
hi!
/td
td
html:text property=fruit name=oneF indexed=true /
/td
/tr
/logic:iterate
and exception i get is this:
javax.servlet.jsp.JspException: No getter method for property fruit of bean
oneF
at
org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:968)
i think it has to do with the fact that my individual fruit is a string
object rather than being a bean in itself if some getter method(s)?
can you see what's going wrong!
Thanks again.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, July 28, 2003 11:58 AM
Subject: Re: Indexed Properties
Atta,
You can use indexed properties in your ActionForm class. The key is
having
all of the correct methods in your form class.
1) Getter and setter: You need a get/Set method for the collection that
you refer to in your jsp. for example:
public Collection getLocations()
public void setLocations(Collection locs)
2) Getter and setter for one instance in the collection. The name that
you
use must match the name you define in your jsp as a single instance from
the collection (specified as the id). For example:
logic:iterate name=locations id=oneLocation
type=com.myco.toolkits.beans.Location
td
html:text name=oneLocation property=locationName indexed
=true/
/td
td
html:text name=oneLocation property=locationAddress
indexed=true/
/td
/logic:iterate
Your form should in this case have the following get/set methods:
public com.myco.toolkits.beans.Location getOneLocation(int index)
public void setOneLocation(int index, com.myco.toolkits.beans.Location
oneLocation)
Your code may never use either of the oneLocation methods, but they are
important for Struts. When your page is submitted, your two indexed
properties will be submitted as oneLocation[ix].locationName
oneLocation[ix].locationAddress where ix is the index of the row (0-10
for
example). As Struts proceses the indexed items, Struts will use the
getOneLocation method to get the Collection instance for the provided
index. This method must resize the collection as needed and then return
the object for the provided index. For example
Re: Indexed Properties
Thanks, for the reply.
Okay, here is the background. I'm trying to learn the user of Indexed
Properties. Why I'm doing that? Well, I have a form that lists, let's say
for the sake of simplicity, Block Name and Block Type columns. Block Name is
a readonly text field while the Block Type is a dropdown list box with a set
of reference values coming from the database. User can have n blocks on the
page and he can change the block type of any block on the page. user cannot
define a new block on this page.
In my form I've got String[] getter/setters for blockName and blockType
properties. In my action, I set both these arrays reading from the database.
Block Names show allright, but the block type dropdown, that is using
html:select tag, shows same type for all the blocks irrespective of the type
of the block read from database.
Now a few days back i asked a question on this forum regarding how to have
my dropdowns display the right block type as set in the blockType String[]
property of the form. Someone, I think it was Wendy Smoak, and i've seen
quite a lot of helpful mails from him, mentioned that Indexed Properties
might be the way go. Althogh, he also mentioned that he hasn't used them.
I solved the problem by using value property of html:select tag. the doc
says that value property denotes the value of the listbox that would be
used to select an item in the list. so far so good.
now the kind of guy i'm, i thought why not try it thrue index properties and
learn something new ;) so i set out to learn indexed properties. read some
articles and still i'm not sure what i'm missing.
Hope this gives you the background and thanks once more for taking some out
to hlep me.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, July 28, 2003 1:09 PM
Subject: Re: Indexed Properties
Atta,
The complaint you are getting is because the property fruit is not a
property of the oneF bean. That the oneF object is not a bean with
properties will give you problems. Depending on your goal, you need to do
something different. What are you trying to do?
I'm off work in a minute, but I'll check messages at home later this
evening and see if I can help at all.
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users
Mailing List [EMAIL PROTECTED]
com cc:
Subject: Re: Indexed
Properties
07/28/2003 03:44
PM
Please respond to
Struts Users
Mailing List
Thanks very much Nick! It was indeed helpful. I was missing getter/setter
for individual list items!
now my form has following methods:
private String[] fruit = {Apple, Orange, Banana};
public List getFruits() {
return Arrays.asList(this.fruit);
}
public void setFruits(List l) {
this.fruit = (String[]) l.toArray();
}
public String getFruit(int index) {
if (this.fruit == null) return null;
return this.fruit[index];
}
public void setFruit(int index, String f) {
this.fruit[index] = f;
}
my JSP has following has this html:iterator:
logic:iterate name=theForm property=fruits id=oneF
type=java.lang.String
tr
td align=center
hi!
/td
td
html:text property=fruit name=oneF indexed=true /
/td
/tr
/logic:iterate
and exception i get is this:
javax.servlet.jsp.JspException: No getter method for property fruit of
bean
oneF
at
org.apache.struts.util.RequestUtils.lookup(RequestUtils.java:968)
i think it has to do with the fact that my individual fruit is a string
object rather than being a bean in itself if some getter method(s)?
can you see what's going wrong!
Thanks again.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, July 28, 2003 11:58 AM
Subject: Re: Indexed Properties
Atta,
You can use indexed properties in your ActionForm class. The key is
having
all of the correct methods in your form class.
1) Getter and setter: You need a get/Set method for the collection
that
you refer to in your jsp. for example:
public Collection getLocations()
public void setLocations(Collection locs)
2) Getter and setter for one instance in the collection. The name that
you
use must match the name you define in your jsp as a single instance from
the collection (specified as the id). For example:
logic:iterate name=locations id=oneLocation
type=com.myco.toolkits.beans.Location
td
html:text name=oneLocation property=locationName
indexed
=true/
/td
td
html:text name=oneLocation property=locationAddress
indexed=true
RE: Indexed Properties
Hi Atta,
No problem with the assistance. Just hope that I can be helpful :-) In
the cases where I use indexed properties, the property is part of a
larger object. It sounds to me like you have two arrays in your form
class: one for blockName and one for blockType. I would suggest
creating a bean with the two properties, and then have a collection of
those objects in your form.
Building on my previous example, you'd have something like this:
logic:iterate name=blocks id=oneBlock
type=com.myco.beans.Block
td
html:text name=oneBlock property=blockName indexed =true/
/td
td
html:select name=oneBlock property=blockType
indexed=true size=1
html:options name=myForm property=blockTypes/
/html:select.
/td
/logic:iterate
This example assumes your collection of blockTypes is part of your form,
but it could be a collection that was in request/session/application
scope. You would create form entries for the collection like you
implemented in our previous emails.
I have almost this exact code in a few places and it works well.
Hope this helps.
Nick
-Original Message-
From: atta-ur rehman [mailto:[EMAIL PROTECTED]
Sent: Monday, July 28, 2003 3:37 PM
To: Struts Users Mailing List
Subject: Re: Indexed Properties
Thanks, for the reply.
Okay, here is the background. I'm trying to learn the user of Indexed
Properties. Why I'm doing that? Well, I have a form that lists, let's
say
for the sake of simplicity, Block Name and Block Type columns. Block
Name is
a readonly text field while the Block Type is a dropdown list box with a
set
of reference values coming from the database. User can have n blocks on
the
page and he can change the block type of any block on the page. user
cannot
define a new block on this page.
In my form I've got String[] getter/setters for blockName and blockType
properties. In my action, I set both these arrays reading from the
database.
Block Names show allright, but the block type dropdown, that is using
html:select tag, shows same type for all the blocks irrespective of the
type
of the block read from database.
Now a few days back i asked a question on this forum regarding how to
have
my dropdowns display the right block type as set in the blockType
String[]
property of the form. Someone, I think it was Wendy Smoak, and i've seen
quite a lot of helpful mails from him, mentioned that Indexed Properties
might be the way go. Althogh, he also mentioned that he hasn't used
them.
I solved the problem by using value property of html:select tag. the
doc
says that value property denotes the value of the listbox that would
be
used to select an item in the list. so far so good.
now the kind of guy i'm, i thought why not try it thrue index properties
and
learn something new ;) so i set out to learn indexed properties. read
some
articles and still i'm not sure what i'm missing.
Hope this gives you the background and thanks once more for taking some
out
to hlep me.
ATTA
- Original Message -
From: Nicholas L Mohler [EMAIL PROTECTED]
To: Struts Users Mailing List [EMAIL PROTECTED]
Sent: Monday, July 28, 2003 1:09 PM
Subject: Re: Indexed Properties
Atta,
The complaint you are getting is because the property fruit is not a
property of the oneF bean. That the oneF object is not a bean with
properties will give you problems. Depending on your goal, you need
to do
something different. What are you trying to do?
I'm off work in a minute, but I'll check messages at home later this
evening and see if I can help at all.
Nick
atta-ur rehman
[EMAIL PROTECTED]To: Struts Users
Mailing List [EMAIL PROTECTED]
com cc:
Subject: Re: Indexed
Properties
07/28/2003 03:44
PM
Please respond to
Struts Users
Mailing List
Thanks very much Nick! It was indeed helpful. I was missing
getter/setter
for individual list items!
now my form has following methods:
private String[] fruit = {Apple, Orange, Banana};
public List getFruits() {
return Arrays.asList(this.fruit);
}
public void setFruits(List l) {
this.fruit = (String[]) l.toArray();
}
public String getFruit(int index) {
if (this.fruit == null) return null;
return this.fruit[index];
}
public void setFruit(int index, String f) {
this.fruit[index] = f;
}
my JSP has following has this html:iterator:
logic:iterate name=theForm property=fruits id=oneF
type=java.lang.String
tr
td align=center
hi!
/td
td
html:text property=fruit name=oneF indexed=true /
/td
/tr
/logic:iterate
and exception i get is this:
javax.servlet.jsp.JspException: No getter method for property fruit of
bean
oneF
Re: Indexed Properties
Yes, I currently have two independent String arrays for blockName and blockType. Putting them, and all the other block related properties, is what seems to be the right thing to do! So you have confirmed. here is what i have understood from your text: 1) my form would have blocks property that would be a collection of Block beans 2) iterating each block in the blocks collection i can sure display each block with indexed=true directive for text boxes and dropdowns. 3) now for the submission part i'd need to have setBlockType(int, string) and getBlockType(int) and same for the rest of properties. The name of property in the Block Form and name of the property in the Block Bean must match. 4) and it should work? I've had my head stuck in my computer whole day today and i'm barely able to write this email :) Tommorrow morning i'd come back and confirm it by running it. meanwhile I'd appreciate if you could confirm these 4 points i've noted above! Thankyou very much for your help. It really did help. Regards, ATTA - Original Message - From: Nick [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Monday, July 28, 2003 5:08 PM Subject: RE: Indexed Properties Hi Atta, No problem with the assistance. Just hope that I can be helpful :-) In the cases where I use indexed properties, the property is part of a larger object. It sounds to me like you have two arrays in your form class: one for blockName and one for blockType. I would suggest creating a bean with the two properties, and then have a collection of those objects in your form. Building on my previous example, you'd have something like this: logic:iterate name=blocks id=oneBlock type=com.myco.beans.Block td html:text name=oneBlock property=blockName indexed =true/ /td td html:select name=oneBlock property=blockType indexed=true size=1 html:options name=myForm property=blockTypes/ /html:select. /td /logic:iterate This example assumes your collection of blockTypes is part of your form, but it could be a collection that was in request/session/application scope. You would create form entries for the collection like you implemented in our previous emails. I have almost this exact code in a few places and it works well. Hope this helps. Nick -Original Message- From: atta-ur rehman [mailto:[EMAIL PROTECTED] Sent: Monday, July 28, 2003 3:37 PM To: Struts Users Mailing List Subject: Re: Indexed Properties Thanks, for the reply. Okay, here is the background. I'm trying to learn the user of Indexed Properties. Why I'm doing that? Well, I have a form that lists, let's say for the sake of simplicity, Block Name and Block Type columns. Block Name is a readonly text field while the Block Type is a dropdown list box with a set of reference values coming from the database. User can have n blocks on the page and he can change the block type of any block on the page. user cannot define a new block on this page. In my form I've got String[] getter/setters for blockName and blockType properties. In my action, I set both these arrays reading from the database. Block Names show allright, but the block type dropdown, that is using html:select tag, shows same type for all the blocks irrespective of the type of the block read from database. Now a few days back i asked a question on this forum regarding how to have my dropdowns display the right block type as set in the blockType String[] property of the form. Someone, I think it was Wendy Smoak, and i've seen quite a lot of helpful mails from him, mentioned that Indexed Properties might be the way go. Althogh, he also mentioned that he hasn't used them. I solved the problem by using value property of html:select tag. the doc says that value property denotes the value of the listbox that would be used to select an item in the list. so far so good. now the kind of guy i'm, i thought why not try it thrue index properties and learn something new ;) so i set out to learn indexed properties. read some articles and still i'm not sure what i'm missing. Hope this gives you the background and thanks once more for taking some out to hlep me. ATTA - Original Message - From: Nicholas L Mohler [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Monday, July 28, 2003 1:09 PM Subject: Re: Indexed Properties Atta, The complaint you are getting is because the property fruit is not a property of the oneF bean. That the oneF object is not a bean with properties will give you problems. Depending on your goal, you need to do something different. What are you trying to do? I'm off work in a minute, but I'll check messages at home later this evening and see if I can help at all. Nick atta-ur rehman [EMAIL
RE: Indexed properties and JavaScript
Have you tried: onclick=alert(document.testForm.elements['att[0]'].value) ? -Original Message- From: Fabiano de O. Lucchese [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 25, 2003 1:53 PM To: [EMAIL PROTECTED] Subject: Indexed properties and JavaScript Hi All, I've been trying to develop a Struts based web site and got stuck by the following problem: I have defined a form bean that contains indexed properties; thus, I'm supposed to use squared brackets [x] to refer to the individual elements of each of these array-like properties into my HTML/JSP page; on the other hand, I also had to embbed some javascript code in this page in order to enlighten the server-side processing. The problem is that I just can't use javascript code along with array-like properties because the brackets used by them seem to conflict with the javascript syntax. The following sample code reproduces this problem: html head titletest/title /head body form action=/test method=GET name=testForm input type=text name=att[0] input type=button onclick=alert(document.testForm.att[0]) value=test /form /body /html and the error message is something like: document.testForm.att.0 is null or is not an object. One should notice that when the index reference [0] is deleted, the page works fine. Does anyone here has any experience with this problem ? Thanks in advance. FLu-X __ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Confidentiality Warning: This e-mail contains information intended only for the use of the individual or entity named above. If the reader of this e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, any dissemination, publication or copying of this e-mail is strictly prohibited. The sender does not accept any responsibility for any loss, disruption or damage to your data or computer system that may occur while using data contained in, or transmitted with, this e-mail. If you have received this e-mail in error, please immediately notify us by return e-mail. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed properties and JavaScript
Hi, Ted. I hadn't tryied this, and it has worked on IE 6 and Opera 7.1, but not on Netscape 7 ! Do you know if this syntax isn't 100 % compliant to the JavaScript standard or if Netscape has implementation problems ? Thank you very much anyway. FLu-X --- Jones, Ted [EMAIL PROTECTED] wrote: Have you tried: onclick=alert(document.testForm.elements['att[0]'].value) ? -Original Message- From: Fabiano de O. Lucchese [mailto:[EMAIL PROTECTED] Sent: Wednesday, June 25, 2003 1:53 PM To: [EMAIL PROTECTED] Subject: Indexed properties and JavaScript Hi All, I've been trying to develop a Struts based web site and got stuck by the following problem: I have defined a form bean that contains indexed properties; thus, I'm supposed to use squared brackets [x] to refer to the individual elements of each of these array-like properties into my HTML/JSP page; on the other hand, I also had to embbed some javascript code in this page in order to enlighten the server-side processing. The problem is that I just can't use javascript code along with array-like properties because the brackets used by them seem to conflict with the javascript syntax. The following sample code reproduces this problem: html head titletest/title /head body form action=/test method=GET name=testForm input type=text name=att[0] input type=button onclick=alert(document.testForm.att[0]) value=test /form /body /html and the error message is something like: document.testForm.att.0 is null or is not an object. One should notice that when the index reference [0] is deleted, the page works fine. Does anyone here has any experience with this problem ? Thanks in advance. FLu-X __ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Confidentiality Warning: This e-mail contains information intended only for the use of the individual or entity named above. If the reader of this e-mail is not the intended recipient or the employee or agent responsible for delivering it to the intended recipient, any dissemination, publication or copying of this e-mail is strictly prohibited. The sender does not accept any responsibility for any loss, disruption or damage to your data or computer system that may occur while using data contained in, or transmitted with, this e-mail. If you have received this e-mail in error, please immediately notify us by return e-mail. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] __ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed properties and JavaScript
I hadn't tryied this, and it has worked on IE 6 and Opera 7.1, but not on Netscape 7 ! Try this instead: document.forms['testForm']['att[0]'].value That should work in any browser. Matt Kruse
RE: Indexed properties and JavaScript
Perfect ! Thank you and Ted. FLu-X --- Kruse, Matt [EMAIL PROTECTED] wrote: I hadn't tryied this, and it has worked on IE 6 and Opera 7.1, but not on Netscape 7 ! Try this instead: document.forms['testForm']['att[0]'].value That should work in any browser. Matt Kruse __ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: indexed properties.
The fields name is name[0] right? So in javascript you cant use something like document.forms[0].name[0] so you will need to use the alternative javascript notation to get at your field: document.forms[0].elements['name[0]'] If you need to change the way indexed fields are done in struts however, Im afraid I dont have the answer. :-( -Original Message- From: Abhinav (Cognizant) [mailto:[EMAIL PROTECTED] Sent: Thursday, 29 May 2003 17:11 To: Struts Users Mailing List Subject: indexed properties. Will someone please tell me how to override indexed naming (like name[0], name[1], name[2]) in my form when my form bean has attribute String [] name and methods getName(int index), setName(int index, String nm). thanx, coz its really urgent. I need this b'coz i cant validate field named name[0] in javascript - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties with DynaActionForm Problems (forgot versions)
JDK 1.4.1 Struts 1.1 Nightly JSTL 1.0.3
RE: Indexed Properties with DynaActionForm Problems
Are you using Struts-EL? You can't reference EL expressions in Struts
tags, just Struts-EL.
-Original Message-
From: Josh Rayls [mailto:[EMAIL PROTECTED]
I have been struggling with this for a couple of days now. I've
scoured
the
archives from top to bottom, and I've found some useful tidbits, but
nothing
that directly addresses my dilemma. Then again, maybe I'm just not
getting
it!
I get an IndexOutOfBoundsException each time. I want to be able to
have
an
arbitrary numbers of rows in the form and then be able to construct
beans
from the rows in my action class.
Any help would be greatly appreciated. I'm going to have very little
hair
left when this is done
-Josh
Code is below:
JSP ---
!-- Begin table body data --
tbody
c:set var=count value=-1/
c:forEach items=${collection} var=dayPart
c:set var=count value=${count + 1}/
tr
td
html:hidden property=id value=${dayPart.id}
indexed=true/
html:hidden property=status value=${dayPart.status}
indexed=true/
html:hidden property=deleteable
value=${dayPart.deleteable}
indexed=true/
html:text property=code size=3 maxlength=3
value=${dayPart.code} indexed=true/
/td
td
html:text property=name size=16 value=${dayPart.name}
indexed=true/
/td
td
html:text property=beginTime maxlength=4 size=10
value=${dayPart.beginTime} onblur=check24Hours(this)
indexed=true/
/td
td
html:text property=endTime maxlength=4 size=10
value=${dayPart.endTime} onblur=check24Hours(this)
indexed=true/
/td
td
c:if test=${dayPart.deleteable}
ct:isAuthorized screen=68 control=30
html:link
href=javascript:post('delete','null','${dayPart.id}');
html:img src=images/delete.gif border=0/
/html:link
/ct:isAuthorized
/c:if
/td
/tr
/c:forEach
html:hidden property=rows value=${count}/
/tbody
!-- End table body data --
Action -
// instance variables
ActionErrors errors = new ActionErrors();
Collection c = new ArrayList();
int rows = ((Integer)PropertyUtils.getProperty(actionForm,
rows)).intValue();
// populate the collection with day parts
DayPart dayPart = null;
PropertyDescriptor[] props =
PropertyUtils.getPropertyDescriptors(DayPart.class);
for (int x=0; xrows; x++) {
dayPart = new DayPart();
for (int i=0; iprops.length; i++) {
PropertyUtils.getIndexedProperty(actionForm,
props[i].getName(),
x);
}
// add the new day part to the collection
c.add(dayPart);
}
try {
CorporateManager manager = JNDIUtil.createCorporateManager();
manager.updateDayParts(c);
} catch (SetupException se) {
LogManager.error(this.getClass(), There has been a problem
updating
dayparts., se);
errors.add(ActionErrors.GLOBAL_ERROR, new ActionError(The day
parts
could not be updated.));
}
// forward request
if (errors.isEmpty()) {
return actionMapping.findForward(view);
} else {
this.saveErrors(request, errors);
return actionMapping.findForward(view);
}
Struts-Config.xml
form-bean name=daypartForm
type=org.apache.struts.action.DynaActionForm
form-property name=action type=java.lang.String/
form-property name=sortType
type=java.lang.String/
form-property name=id type=java.util.ArrayList/
form-property name=status
type=java.util.ArrayList/
form-property name=deleteable
type=java.util.ArrayList/
form-property name=code type=java.util.ArrayList/
form-property name=name type=java.util.ArrayList/
form-property name=beginTime
type=java.util.ArrayList/
form-property name=endTime
type=java.util.ArrayList/
form-property name=rows type=java.lang.Integer/
/form-bean
-
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For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties with DynaActionForm Problems
Yep. Using Struts-EL.
-Original Message-
From: Karr, David [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 18, 2003 4:16 PM
To: Struts Users Mailing List
Subject: RE: Indexed Properties with DynaActionForm Problems
Are you using Struts-EL? You can't reference EL expressions in Struts
tags, just Struts-EL.
-Original Message-
From: Josh Rayls [mailto:[EMAIL PROTECTED]
I have been struggling with this for a couple of days now. I've
scoured
the
archives from top to bottom, and I've found some useful tidbits, but
nothing
that directly addresses my dilemma. Then again, maybe I'm just not
getting
it!
I get an IndexOutOfBoundsException each time. I want to be able to
have
an
arbitrary numbers of rows in the form and then be able to construct
beans
from the rows in my action class.
Any help would be greatly appreciated. I'm going to have very little
hair
left when this is done
-Josh
Code is below:
JSP ---
!-- Begin table body data --
tbody
c:set var=count value=-1/
c:forEach items=${collection} var=dayPart
c:set var=count value=${count + 1}/
tr
td
html:hidden property=id value=${dayPart.id}
indexed=true/
html:hidden property=status value=${dayPart.status}
indexed=true/
html:hidden property=deleteable
value=${dayPart.deleteable}
indexed=true/
html:text property=code size=3 maxlength=3
value=${dayPart.code} indexed=true/
/td
td
html:text property=name size=16 value=${dayPart.name}
indexed=true/
/td
td
html:text property=beginTime maxlength=4 size=10
value=${dayPart.beginTime} onblur=check24Hours(this)
indexed=true/
/td
td
html:text property=endTime maxlength=4 size=10
value=${dayPart.endTime} onblur=check24Hours(this)
indexed=true/
/td
td
c:if test=${dayPart.deleteable}
ct:isAuthorized screen=68 control=30
html:link
href=javascript:post('delete','null','${dayPart.id}');
html:img src=images/delete.gif border=0/
/html:link
/ct:isAuthorized
/c:if
/td
/tr
/c:forEach
html:hidden property=rows value=${count}/
/tbody
!-- End table body data --
Action -
// instance variables
ActionErrors errors = new ActionErrors();
Collection c = new ArrayList();
int rows = ((Integer)PropertyUtils.getProperty(actionForm,
rows)).intValue();
// populate the collection with day parts
DayPart dayPart = null;
PropertyDescriptor[] props =
PropertyUtils.getPropertyDescriptors(DayPart.class);
for (int x=0; xrows; x++) {
dayPart = new DayPart();
for (int i=0; iprops.length; i++) {
PropertyUtils.getIndexedProperty(actionForm,
props[i].getName(),
x);
}
// add the new day part to the collection
c.add(dayPart);
}
try {
CorporateManager manager = JNDIUtil.createCorporateManager();
manager.updateDayParts(c);
} catch (SetupException se) {
LogManager.error(this.getClass(), There has been a problem
updating
dayparts., se);
errors.add(ActionErrors.GLOBAL_ERROR, new ActionError(The day
parts
could not be updated.));
}
// forward request
if (errors.isEmpty()) {
return actionMapping.findForward(view);
} else {
this.saveErrors(request, errors);
return actionMapping.findForward(view);
}
Struts-Config.xml
form-bean name=daypartForm
type=org.apache.struts.action.DynaActionForm
form-property name=action type=java.lang.String/
form-property name=sortType
type=java.lang.String/
form-property name=id type=java.util.ArrayList/
form-property name=status
type=java.util.ArrayList/
form-property name=deleteable
type=java.util.ArrayList/
form-property name=code type=java.util.ArrayList/
form-property name=name type=java.util.ArrayList/
form-property name=beginTime
type=java.util.ArrayList/
form-property name=endTime
type=java.util.ArrayList/
form-property name=rows type=java.lang.Integer/
/form-bean
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed Properties with DynaActionForm Problems
It would be hard for us to figure out anything without any description
of what really happens. Do you have an exception stack trace?
You could really help yourself out by setting this up in a JPDA debugger
and really tracking exactly what happens at the point of the error (and
before).
-Original Message-
From: Josh Rayls [mailto:[EMAIL PROTECTED]
Hello,
I have been struggling with this for a couple of days now. I've
scoured
the
archives from top to bottom, and I've found some useful tidbits, but
nothing
that directly addresses my dilemma. Then again, maybe I'm just not
getting
it!
I get an IndexOutOfBoundsException each time. I want to be able to
have
an
arbitrary numbers of rows in the form and then be able to construct
beans
from the rows in my action class.
Any help would be greatly appreciated. I'm going to have very little
hair
left when this is done
-Josh
Code is below:
JSP ---
!-- Begin table body data --
tbody
c:set var=count value=-1/
c:forEach items=${collection} var=dayPart
c:set var=count value=${count + 1}/
tr
td
html:hidden property=id value=${dayPart.id}
indexed=true/
html:hidden property=status value=${dayPart.status}
indexed=true/
html:hidden property=deleteable
value=${dayPart.deleteable}
indexed=true/
html:text property=code size=3 maxlength=3
value=${dayPart.code} indexed=true/
/td
td
html:text property=name size=16 value=${dayPart.name}
indexed=true/
/td
td
html:text property=beginTime maxlength=4 size=10
value=${dayPart.beginTime} onblur=check24Hours(this)
indexed=true/
/td
td
html:text property=endTime maxlength=4 size=10
value=${dayPart.endTime} onblur=check24Hours(this)
indexed=true/
/td
td
c:if test=${dayPart.deleteable}
ct:isAuthorized screen=68 control=30
html:link
href=javascript:post('delete','null','${dayPart.id}');
html:img src=images/delete.gif border=0/
/html:link
/ct:isAuthorized
/c:if
/td
/tr
/c:forEach
html:hidden property=rows value=${count}/
/tbody
!-- End table body data --
Action -
// instance variables
ActionErrors errors = new ActionErrors();
Collection c = new ArrayList();
int rows = ((Integer)PropertyUtils.getProperty(actionForm,
rows)).intValue();
// populate the collection with day parts
DayPart dayPart = null;
PropertyDescriptor[] props =
PropertyUtils.getPropertyDescriptors(DayPart.class);
for (int x=0; xrows; x++) {
dayPart = new DayPart();
for (int i=0; iprops.length; i++) {
PropertyUtils.getIndexedProperty(actionForm,
props[i].getName(),
x);
}
// add the new day part to the collection
c.add(dayPart);
}
try {
CorporateManager manager = JNDIUtil.createCorporateManager();
manager.updateDayParts(c);
} catch (SetupException se) {
LogManager.error(this.getClass(), There has been a problem
updating
dayparts., se);
errors.add(ActionErrors.GLOBAL_ERROR, new ActionError(The day
parts
could not be updated.));
}
// forward request
if (errors.isEmpty()) {
return actionMapping.findForward(view);
} else {
this.saveErrors(request, errors);
return actionMapping.findForward(view);
}
Struts-Config.xml
form-bean name=daypartForm
type=org.apache.struts.action.DynaActionForm
form-property name=action type=java.lang.String/
form-property name=sortType
type=java.lang.String/
form-property name=id type=java.util.ArrayList/
form-property name=status
type=java.util.ArrayList/
form-property name=deleteable
type=java.util.ArrayList/
form-property name=code type=java.util.ArrayList/
form-property name=name type=java.util.ArrayList/
form-property name=beginTime
type=java.util.ArrayList/
form-property name=endTime
type=java.util.ArrayList/
form-property name=rows type=java.lang.Integer/
/form-bean
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
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RE: Indexed Properties with DynaActionForm Problems
m t_daypart order by begin_time asc
Mar 18, 2003 4:00:37 PM EST Error HTTP 101017
[ServletContext(id=6914328,name=ctweb.war,context-path=)] Root cause
vletException
java.lang.IndexOutOfBoundsException: Index: 2, Size: 0
at java.util.ArrayList.RangeCheck(ArrayList.java:508)
at java.util.ArrayList.set(ArrayList.java:336)
at
org.apache.struts.action.DynaActionForm.set(DynaActionForm.java:460)
at
org.apache.commons.beanutils.PropertyUtilsBean.setIndexedProperty(PropertyUt
ilsBean.java:1373)
at
org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:10
23)
at
org.apache.commons.beanutils.BeanUtilsBean.populate(BeanUtilsBean.java:818)
at
org.apache.commons.beanutils.BeanUtils.populate(BeanUtils.java:343)
at
org.apache.struts.util.RequestUtils.populate(RequestUtils.java:1136)
at
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.j
ava:815)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:254)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1421)
at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:518)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(Servle
tStubImpl.java:1058)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:401)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:306)
at
weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(W
ebAppServletContext.java:5445)
at
weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManage
r.java:780)
at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
ntext.java:3105)
at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
:2588)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:213)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:189)
I'll give the debugger a shot and see what happens.
-Josh
-Original Message-
From: Karr, David [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 18, 2003 4:32 PM
To: Struts Users Mailing List
Subject: RE: Indexed Properties with DynaActionForm Problems
It would be hard for us to figure out anything without any description
of what really happens. Do you have an exception stack trace?
You could really help yourself out by setting this up in a JPDA debugger
and really tracking exactly what happens at the point of the error (and
before).
-Original Message-
From: Josh Rayls [mailto:[EMAIL PROTECTED]
Hello,
I have been struggling with this for a couple of days now. I've
scoured
the
archives from top to bottom, and I've found some useful tidbits, but
nothing
that directly addresses my dilemma. Then again, maybe I'm just not
getting
it!
I get an IndexOutOfBoundsException each time. I want to be able to
have
an
arbitrary numbers of rows in the form and then be able to construct
beans
from the rows in my action class.
Any help would be greatly appreciated. I'm going to have very little
hair
left when this is done
-Josh
Code is below:
JSP ---
!-- Begin table body data --
tbody
c:set var=count value=-1/
c:forEach items=${collection} var=dayPart
c:set var=count value=${count + 1}/
tr
td
html:hidden property=id value=${dayPart.id}
indexed=true/
html:hidden property=status value=${dayPart.status}
indexed=true/
html:hidden property=deleteable
value=${dayPart.deleteable}
indexed=true/
html:text property=code size=3 maxlength=3
value=${dayPart.code} indexed=true/
/td
td
html:text property=name size=16 value=${dayPart.name}
indexed=true/
/td
td
html:text property=beginTime maxlength=4 size=10
value=${dayPart.beginTime} onblur=check24Hours(this)
indexed=true/
/td
td
html:text property=endTime maxlength=4 size=10
value=${dayPart.endTime} onblur=check24Hours(this)
indexed=true/
/td
td
c:if test=${dayPart.deleteable}
ct:isAuthorized screen=68 control=30
html:link
href=javascript:post('delete','null','${dayPart.id}');
html:img src=images/delete.gif border=0/
/html:link
/ct:isAuthorized
/c:if
/td
/tr
/c:forEach
html:hidden property=rows value=${count}/
/tbody
!-- End table body data --
Action -
// instance variables
ActionErrors errors = new ActionErrors();
Collection c = new ArrayList();
int rows = ((Integer)PropertyUtils.getProperty(actionForm,
rows)).intValue
RE: Indexed properties and form
umm is my email program messed up or does anyone else here see the same thing. % int i = ; % ?? I dont see how that works. Shouldnt it be more like: % int i = 0; % -Tim -Original Message- From: Samir Shah [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 11, 2003 9:32 PM To: Struts Users Mailing List Subject: Re: Indexed properties and form Actually i is just another variable I am using to display to the user the number of the row. It is declared in another scriplet as % int i = ; % --- Evan Schnell [EMAIL PROTECTED] wrote: Samir Shah wrote: Hi, I have a JSP page that outputs data using a Collection using the following section logic:iterate id=lifeBenefit name=lifeBenefits type=com.quote.dao.BenefitLineItem indexId=classNum Where do you declare i? I think you need to use td class=formtext %=classNum %/td instead of... td class=formtext %=i %/td % i++; % Regards, Evan. -- Evan Schnell, Technical Lead nVISIA, Twin Cities Digital Architecture and Construction 7701 France Ave. S, Edina, MN 55435 Voice: 952.837.2577 -- Fax: 952.837.2578 -- Mobile: 612.232.5972 ATTACHMENT part 2 application/x-pkcs7-signature name=smime.p7s = -Samir Shah __ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Indexed properties and form
I meant to say % int i = 0; % The page display correctly. The problem is accessing the variable in the ActionForm. How do I declare the form variables in the ActionForm to gain access to them Thanks, Samir --- Chen, Gin [EMAIL PROTECTED] wrote: umm is my email program messed up or does anyone else here see the same thing. % int i = ; % ?? I dont see how that works. Shouldnt it be more like: % int i = 0; % -Tim -Original Message- From: Samir Shah [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 11, 2003 9:32 PM To: Struts Users Mailing List Subject: Re: Indexed properties and form Actually i is just another variable I am using to display to the user the number of the row. It is declared in another scriplet as % int i = ; % --- Evan Schnell [EMAIL PROTECTED] wrote: Samir Shah wrote: Hi, I have a JSP page that outputs data using a Collection using the following section logic:iterate id=lifeBenefit name=lifeBenefits type=com.quote.dao.BenefitLineItem indexId=classNum Where do you declare i? I think you need to use td class=formtext %=classNum %/td instead of... td class=formtext %=i %/td % i++; % Regards, Evan. -- Evan Schnell, Technical Lead nVISIA, Twin Cities Digital Architecture and Construction 7701 France Ave. S, Edina, MN 55435 Voice: 952.837.2577 -- Fax: 952.837.2578 -- Mobile: 612.232.5972 ATTACHMENT part 2 application/x-pkcs7-signature name=smime.p7s = -Samir Shah __ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed properties and form
Samir Shah wrote: Hi, I have a JSP page that outputs data using a Collection using the following section logic:iterate id=lifeBenefit name=lifeBenefits type=com.quote.dao.BenefitLineItem indexId=classNum Where do you declare i? I think you need to use td class=formtext %=classNum %/td instead of... td class=formtext %=i %/td % i++; % Regards, Evan. -- Evan Schnell, Technical Lead nVISIA, Twin Cities Digital Architecture and Construction 7701 France Ave. S, Edina, MN 55435 Voice: 952.837.2577 -- Fax: 952.837.2578 -- Mobile: 612.232.5972 smime.p7s Description: S/MIME Cryptographic Signature
Re: Indexed properties and form
Actually i is just another variable I am using to display to the user the number of the row. It is declared in another scriplet as % int i = ; % --- Evan Schnell [EMAIL PROTECTED] wrote: Samir Shah wrote: Hi, I have a JSP page that outputs data using a Collection using the following section logic:iterate id=lifeBenefit name=lifeBenefits type=com.quote.dao.BenefitLineItem indexId=classNum Where do you declare i? I think you need to use td class=formtext %=classNum %/td instead of... td class=formtext %=i %/td % i++; % Regards, Evan. -- Evan Schnell, Technical Lead nVISIA, Twin Cities Digital Architecture and Construction 7701 France Ave. S, Edina, MN 55435 Voice: 952.837.2577 -- Fax: 952.837.2578 -- Mobile: 612.232.5972 ATTACHMENT part 2 application/x-pkcs7-signature name=smime.p7s = -Samir Shah __ Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day http://shopping.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Indexed Properties and Population
David says:
One implementation that should work based on your example
as long as you are willing to create a child factory is in the commons
collection package and is ListUtils.lazyList, which takes a List and
factory.
I have used this as well, in combination with the nested tag library.
We have a page that displays and updates a List of Value Objects where
each have two internal Lists of Value Objects.
The structure of value objects are sent to me from the back end as such:
CustomerList
CustomerVo 1
creditVo1 invoiceVo1
creditVo2 invoiceVo2
. .
CustomerVo2
creditVo1 invoiceVo1
creditVo2 invoiceVo2
. .
I would be curious to know this would done without the nested tags and
lazy list.
David Morris [EMAIL PROTECTED] on 01/16/2003 03:50:10 PM
Please respond to Struts Users Mailing List
[EMAIL PROTECTED]
To:[EMAIL PROTECTED]
cc:
Subject:Re: Indexed Properties and Population
Matt,
You really don't need to know how many there are, just create them
on demand. You can intercept gets and auto-extend the underlying
Collection. One implementation that should work based on your example
as long as you are willing to create a child factory is in the commons
collection package and is ListUtils.lazyList, which takes a List and
factory.
David Morris
[EMAIL PROTECTED] 01/16/03 02:31PM
I have an ArrayList on a form... let's call the form Parent and the
ArrayList Children.
If I have:
private ArrayList children;
public void setChildren(int index, ChildForm childForm) {
this.children.set(index, childForm);
}
Then saving my form results in a NPE for BeanUtils.copyProperties. If
I
create a whole bunch of objects in the ArrayList in the constructor -
I
avoid this problem:
public ParentForm () {
children = new ArrayList(100);
for (int i=0; i 100; i++) {
children.add(new ChildForm());
}
But I'm guessing that this fits better into the reset(mapping,
request)
method of my form. My question is - how do I determine how many there
are?
Is there something in the request this this information - or should I
set a
hidden field with the number of children?
Thanks,
Matt
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RE: Indexed Properties and Population
Here's how I did it:
On my Form:
public ArrayList getKids() {
returns kids;
}
public void setKids(ArrayList kids) {
this.kids = kids;
}
public int getKidsSize() {
return kids.size();
}
In my JSP:
nested:iterate property=kids
...
nested:text property=name/
...
/nested:iterate
html:hidden property=kidsSize/
On my form (relevant for saving)
public void reset(ActionMapping mapping, HttpServletRequest request) {
// make the kids ArrayList the proper size and populate with
// empty objects
int kidsSize = Integer.parseInt(request.getParameter(kidsSize));
kids = new ArrayList(kidsSize);
for (int i=0; i kidsSize; i++) {
kids.add(new KidForm());
}
}
This seems to work great for me. Any other suggestions/methods are
encouraged ;) Is it lunchtime (beertime) yet?
HTH,
Matt
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Friday, January 17, 2003 6:52 AM
To: Struts Users Mailing List
Subject: Re: Indexed Properties and Population
David says:
One implementation that should work based on your example
as long as you are willing to create a child factory is in the commons
collection package and is ListUtils.lazyList, which takes a List and
factory.
I have used this as well, in combination with the nested tag library.
We have a page that displays and updates a List of Value Objects where
each have two internal Lists of Value Objects.
The structure of value objects are sent to me from the back end as such:
CustomerList
CustomerVo 1
creditVo1 invoiceVo1
creditVo2 invoiceVo2
. .
CustomerVo2
creditVo1 invoiceVo1
creditVo2 invoiceVo2
. .
I would be curious to know this would done without the nested tags and
lazy list.
David Morris [EMAIL PROTECTED] on 01/16/2003 03:50:10 PM
Please respond to Struts Users Mailing List
[EMAIL PROTECTED]
To:[EMAIL PROTECTED]
cc:
Subject:Re: Indexed Properties and Population
Matt,
You really don't need to know how many there are, just create them
on demand. You can intercept gets and auto-extend the underlying
Collection. One implementation that should work based on your example
as long as you are willing to create a child factory is in the commons
collection package and is ListUtils.lazyList, which takes a List and
factory.
David Morris
[EMAIL PROTECTED] 01/16/03 02:31PM
I have an ArrayList on a form... let's call the form Parent and the
ArrayList Children.
If I have:
private ArrayList children;
public void setChildren(int index, ChildForm childForm) {
this.children.set(index, childForm);
}
Then saving my form results in a NPE for BeanUtils.copyProperties. If
I
create a whole bunch of objects in the ArrayList in the constructor -
I
avoid this problem:
public ParentForm () {
children = new ArrayList(100);
for (int i=0; i 100; i++) {
children.add(new ChildForm());
}
But I'm guessing that this fits better into the reset(mapping,
request)
method of my form. My question is - how do I determine how many there
are?
Is there something in the request this this information - or should I
set a
hidden field with the number of children?
Thanks,
Matt
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Re: Indexed Properties and Population
Matt,
You really don't need to know how many there are, just create them
on demand. You can intercept gets and auto-extend the underlying
Collection. One implementation that should work based on your example
as long as you are willing to create a child factory is in the commons
collection package and is ListUtils.lazyList, which takes a List and
factory.
David Morris
[EMAIL PROTECTED] 01/16/03 02:31PM
I have an ArrayList on a form... let's call the form Parent and the
ArrayList Children.
If I have:
private ArrayList children;
public void setChildren(int index, ChildForm childForm) {
this.children.set(index, childForm);
}
Then saving my form results in a NPE for BeanUtils.copyProperties. If
I
create a whole bunch of objects in the ArrayList in the constructor -
I
avoid this problem:
public ParentForm () {
children = new ArrayList(100);
for (int i=0; i 100; i++) {
children.add(new ChildForm());
}
But I'm guessing that this fits better into the reset(mapping,
request)
method of my form. My question is - how do I determine how many there
are?
Is there something in the request this this information - or should I
set a
hidden field with the number of children?
Thanks,
Matt
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RE: Indexed Properties and Population
int elements = children.size()
?
Where are you defining this method?
-Original Message-
From: Raible, Matt [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 16, 2003 4:31 PM
If I have:
private ArrayList children;
public void setChildren(int index, ChildForm childForm) {
this.children.set(index, childForm);
}
My question is - how do I determine how many there are? Is there something
in the request this this information - or should I set a hidden field with
the number of children?
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Re: Indexed Properties and Population
Just make sure you've got a way to cap the max number you auto-create...
Quoting David Morris [EMAIL PROTECTED]:
Matt,
You really don't need to know how many there are, just create them
on demand. You can intercept gets and auto-extend the underlying
Collection. One implementation that should work based on your example
as long as you are willing to create a child factory is in the commons
collection package and is ListUtils.lazyList, which takes a List and
factory.
David Morris
[EMAIL PROTECTED] 01/16/03 02:31PM
I have an ArrayList on a form... let's call the form Parent and the
ArrayList Children.
If I have:
private ArrayList children;
public void setChildren(int index, ChildForm childForm) {
this.children.set(index, childForm);
}
Then saving my form results in a NPE for BeanUtils.copyProperties. If
I
create a whole bunch of objects in the ArrayList in the constructor -
I
avoid this problem:
public ParentForm () {
children = new ArrayList(100);
for (int i=0; i 100; i++) {
children.add(new ChildForm());
}
But I'm guessing that this fits better into the reset(mapping,
request)
method of my form. My question is - how do I determine how many there
are?
Is there something in the request this this information - or should I
set a
hidden field with the number of children?
Thanks,
Matt
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Kris Schneider mailto:[EMAIL PROTECTED]
D.O.Tech http://www.dotech.com/
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RE: Indexed Properties and Population
I think what I'll do is to create a new method called getChildrenSize() that
does what Mark suggests below - then I'll put this as a hidden field on my
form. Since all my form's contents are dumped into a JSP (and gone), I've
lost the size of the children - unless I save it as a hidden field, or count
them in my nested:iterate tag. So then in my reset method on the form, I
can create x number of children and do set(index, form).
Thanks,
Matt
-Original Message-
From: Mark Galbreath [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 16, 2003 2:57 PM
To: 'Struts Users Mailing List'
Subject: RE: Indexed Properties and Population
int elements = children.size()
?
Where are you defining this method?
-Original Message-
From: Raible, Matt [mailto:[EMAIL PROTECTED]]
Sent: Thursday, January 16, 2003 4:31 PM
If I have:
private ArrayList children;
public void setChildren(int index, ChildForm childForm) {
this.children.set(index, childForm);
}
My question is - how do I determine how many there are? Is there something
in the request this this information - or should I set a hidden field with
the number of children?
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RE: indexed properties and form help needed
At end.
-Original Message-
From: Andy Kriger [mailto:akriger;greaterthanone.com]
I have a DynaActionForm collecting credit card info. A user
can enter up to
3 credit cards on the form. I want to collect this info in
the text fields
and create new CreditCard objects automatically; ideally, I
would get a
CreditCard[3] once the form is submitted (optionally an
ArrayList would be
fine). I would like to use indexed properties (right now I'm
using hard
coded property names), but I cannot figure out how to set this up.
I am getting either a 'No collection found' error or a
'Cannot iterate over
collection' error (depending on how I mess with this).
What follows is rough code of what I'm trying to do.
A CreditCard object has 5 fields with get/set methods for
each: type, name,
number, expMonth, expYear.
!-- JSP --
html:form method='post' action='doSomething'
logic:iterate id='index' property='creditCard'
name='registrationForm'
length='3'
html:select property='creditCard.type' name='index'
indexed='true'
!-- some options --
/html:select
html:text property='creditCard.name' name='index'
indexed='true'
html:text property='creditCard.number' name='index'
indexed='true'
html:text property='creditCard.expMonth' name='index'
indexed='true'
html:text property='creditCard.expYear' name='index'
indexed='true'
/logic:iterate
/html:form
!-- Note: I have tried html:text with property='creditCard.field' and
property='field' Neither worked --
!-- struts-config.xml --
form-bean name='registrationForm' type='DynaValidatorForm
dynamic='true'
form-property name='creditCard'
type='my.package.CreditCard[]'/
/form-bean
Note that I haven't compiled or run any of this.
I would first expect my loop to look more like this:
logic:iterate id='creditCard' property='creditCards' name='registrationForm'
length='3'
html:select name='creditCard' property='type' indexed='true'
!-- some options --
/html:select
html:text name='creditCard' property='name' indexed='true'/
html:text name='creditCard' property='number' indexed='true'/
html:text name='creditCard' property='expMonth' indexed='true'/
html:text name='creditCard' property='expYear' indexed='true'/
/logic:iterate
I would have accessors for name, number, expMonth and expYear in the
CreditCard class.
At that point, I scratch my head, because I don't know how to represent indexed
properties in DynaActionForms. With a regular ActionForm, I would have the following
in my registrationForm bean:
public CreditCard getCreditCard(int index) { return (creditCards[index]); }
public void setCreditCard(int index, CreditCard creditCard) { creditCard[index]
= creditCard; }
public CreditCard[] getCreditCards() { return (creditCards); }
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RE: indexed properties and form help needed
According to the docs for DynaActionForm, you indicate a property is indexed
by putting [] after the type name. What I think is going on is that the
property is not initalized when the iterator tries to access it, thus the
'No collection found'. But I don't know how to set this up so it works
correctly. Since Struts seems to handle just about everything else, it'd
surprise me if you couldn't iterate over a dynamic form property in order to
setup inputs.
thx
-Original Message-
From: Karr, David [mailto:david.karr;attws.com]
Sent: Wednesday, November 13, 2002 18:02
To: Struts Users Mailing List
Subject: RE: indexed properties and form help needed
At end.
-Original Message-
From: Andy Kriger [mailto:akriger;greaterthanone.com]
I have a DynaActionForm collecting credit card info. A user
can enter up to
3 credit cards on the form. I want to collect this info in
the text fields
and create new CreditCard objects automatically; ideally, I
would get a
CreditCard[3] once the form is submitted (optionally an
ArrayList would be
fine). I would like to use indexed properties (right now I'm
using hard
coded property names), but I cannot figure out how to set this up.
I am getting either a 'No collection found' error or a
'Cannot iterate over
collection' error (depending on how I mess with this).
What follows is rough code of what I'm trying to do.
A CreditCard object has 5 fields with get/set methods for
each: type, name,
number, expMonth, expYear.
!-- JSP --
html:form method='post' action='doSomething'
logic:iterate id='index' property='creditCard'
name='registrationForm'
length='3'
html:select property='creditCard.type' name='index'
indexed='true'
!-- some options --
/html:select
html:text property='creditCard.name' name='index'
indexed='true'
html:text property='creditCard.number' name='index'
indexed='true'
html:text property='creditCard.expMonth' name='index'
indexed='true'
html:text property='creditCard.expYear' name='index'
indexed='true'
/logic:iterate
/html:form
!-- Note: I have tried html:text with property='creditCard.field' and
property='field' Neither worked --
!-- struts-config.xml --
form-bean name='registrationForm' type='DynaValidatorForm
dynamic='true'
form-property name='creditCard'
type='my.package.CreditCard[]'/
/form-bean
Note that I haven't compiled or run any of this.
I would first expect my loop to look more like this:
logic:iterate id='creditCard' property='creditCards'
name='registrationForm'
length='3'
html:select name='creditCard' property='type' indexed='true'
!-- some options --
/html:select
html:text name='creditCard' property='name' indexed='true'/
html:text name='creditCard' property='number' indexed='true'/
html:text name='creditCard' property='expMonth' indexed='true'/
html:text name='creditCard' property='expYear' indexed='true'/
/logic:iterate
I would have accessors for name, number, expMonth and expYear in the
CreditCard class.
At that point, I scratch my head, because I don't know how to represent
indexed properties in DynaActionForms. With a regular ActionForm, I would
have the following in my registrationForm bean:
public CreditCard getCreditCard(int index) { return
(creditCards[index]); }
public void setCreditCard(int index, CreditCard creditCard) {
creditCard[index] = creditCard; }
public CreditCard[] getCreditCards() { return (creditCards); }
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RE: Indexed Properties - soluce :-)
Craig.
Can you give us some news about the JSR 127 ??
Do you have planned a draft for the JavaServer Faces ??
Thx
Arnaud
-Message d'origine-
De : Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
Envoye : mercredi 17 juillet 2002 17:11
A : Struts Users Mailing List
Cc : [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Objet : RE: Indexed Properties - soluce :-)
On Wed, 17 Jul 2002 [EMAIL PROTECTED] wrote:
Date: Wed, 17 Jul 2002 15:30:38 +0200
From: [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: [EMAIL PROTECTED],
'Struts Users Mailing List' [EMAIL PROTECTED],
[EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
Hi there,
Actually when you are looking at the stuff done in the JSTL
all three ways pretty much work, because it contains a
scripting language ;).
Are there any plans on integrating it within Struts? I like
both libraries very much, and I recall a discussion was going
on a while ago about it?
If it is done this would make it is either:
1. property = all I want to write
2. property = %= java expression %
3. property = ${myRadios[param.index]}
My current thinking is that we'll make some variant of #3 available in
Struts tags, in a release after 1.1. But this will primarily be as a
transition tool -- subsequent releases of Struts will be designed such
that you should use JSTL tags directly, as opposed to the
corresponding
Struts tags in the bean and logic libraries. For the html tags,
we'll end up with JavaServer Faces tags when it's released.
(here with 'index' as a request variable ;))
Manfred.
Craig McClanahan
-Original Message-
From: Arnaud HERITIER [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 17, 2002 10:29 AM
To: 'Struts Users Mailing List'; [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
All suggestions are welcome Eddie.
Your idea and your argumentations are good, but your proposed
solution doesn't work :-(
Explanations :
In a taglib property you can use either a string value or a
RunTime Expression (if allowed in the TLD).
If you use a string you have something like : property=all
I want to write
If you use a RT Expr you have something like :
property=%=java expression%
The tag libraries interpreter verify if the content of the
property begins with %= and ends with % . In this case it
suppose that it is a RT Expr and values it. In all other case
it supposes that the content is a string.
With your suggestion, property=myRadios[%= index %] the
tag libraries interpretor see that there's not %= at the
begining and % at the end. Then it passes the value
myRadios[%= index %] as a string to the taglib.
When the taglib get the content of property, it will analize
it and see that it is a indexed property because of [..] but
won't be able to interpret it and will launch an exception like :
java.lang.IllegalArgumentException: Invalid indexed property
'myRadios[%=index%]'
However, it is important to say that your advice is totally
good if you want to use a dynamic value in standard html tag.
I you have another idea to clean my code, don't hesitate to
propose it.
Arnaud.
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RE: Indexed Properties - soluce :-)
On Thu, 18 Jul 2002, Arnaud HERITIER wrote:
Date: Thu, 18 Jul 2002 11:09:24 +0200
From: Arnaud HERITIER [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED],
[EMAIL PROTECTED]
To: 'Struts Users Mailing List' [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
Craig.
Can you give us some news about the JSR 127 ??
Do you have planned a draft for the JavaServer Faces ??
It is currently in Community Review in the JCP process, scheduled to end
on August 12. Assuming positive votes by the JCP executive committee and
the JSR 127 expert group, the next phase after that is public review.
Thx
Arnaud
Craig
-Message d'origine-
De : Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
Envoye : mercredi 17 juillet 2002 17:11
A : Struts Users Mailing List
Cc : [EMAIL PROTECTED]; [EMAIL PROTECTED]; [EMAIL PROTECTED]
Objet : RE: Indexed Properties - soluce :-)
On Wed, 17 Jul 2002 [EMAIL PROTECTED] wrote:
Date: Wed, 17 Jul 2002 15:30:38 +0200
From: [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: [EMAIL PROTECTED],
'Struts Users Mailing List' [EMAIL PROTECTED],
[EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
Hi there,
Actually when you are looking at the stuff done in the JSTL
all three ways pretty much work, because it contains a
scripting language ;).
Are there any plans on integrating it within Struts? I like
both libraries very much, and I recall a discussion was going
on a while ago about it?
If it is done this would make it is either:
1. property = all I want to write
2. property = %= java expression %
3. property = ${myRadios[param.index]}
My current thinking is that we'll make some variant of #3 available in
Struts tags, in a release after 1.1. But this will primarily be as a
transition tool -- subsequent releases of Struts will be designed such
that you should use JSTL tags directly, as opposed to the
corresponding
Struts tags in the bean and logic libraries. For the html tags,
we'll end up with JavaServer Faces tags when it's released.
(here with 'index' as a request variable ;))
Manfred.
Craig McClanahan
-Original Message-
From: Arnaud HERITIER [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 17, 2002 10:29 AM
To: 'Struts Users Mailing List'; [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
All suggestions are welcome Eddie.
Your idea and your argumentations are good, but your proposed
solution doesn't work :-(
Explanations :
In a taglib property you can use either a string value or a
RunTime Expression (if allowed in the TLD).
If you use a string you have something like : property=all
I want to write
If you use a RT Expr you have something like :
property=%=java expression%
The tag libraries interpreter verify if the content of the
property begins with %= and ends with % . In this case it
suppose that it is a RT Expr and values it. In all other case
it supposes that the content is a string.
With your suggestion, property=myRadios[%= index %] the
tag libraries interpretor see that there's not %= at the
begining and % at the end. Then it passes the value
myRadios[%= index %] as a string to the taglib.
When the taglib get the content of property, it will analize
it and see that it is a indexed property because of [..] but
won't be able to interpret it and will launch an exception like :
java.lang.IllegalArgumentException: Invalid indexed property
'myRadios[%=index%]'
However, it is important to say that your advice is totally
good if you want to use a dynamic value in standard html tag.
I you have another idea to clean my code, don't hesitate to
propose it.
Arnaud.
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RE: Indexed Properties - soluce :-)
All suggestions are welcome Eddie. Your idea and your argumentations are good, but your proposed solution doesn't work :-( Explanations : In a taglib property you can use either a string value or a RunTime Expression (if allowed in the TLD). If you use a string you have something like : property=all I want to write If you use a RT Expr you have something like : property=%=java expression% The tag libraries interpreter verify if the content of the property begins with %= and ends with % . In this case it suppose that it is a RT Expr and values it. In all other case it supposes that the content is a string. With your suggestion, property=myRadios[%= index %] the tag libraries interpretor see that there's not %= at the begining and % at the end. Then it passes the value myRadios[%= index %] as a string to the taglib. When the taglib get the content of property, it will analize it and see that it is a indexed property because of [..] but won't be able to interpret it and will launch an exception like : java.lang.IllegalArgumentException: Invalid indexed property 'myRadios[%=index%]' However, it is important to say that your advice is totally good if you want to use a dynamic value in standard html tag. I you have another idea to clean my code, don't hesitate to propose it. Arnaud. -Message d'origine- De : Eddie Bush [mailto:[EMAIL PROTECTED]] Envoye : mardi 16 juillet 2002 17:54 A : Struts Users Mailing List Objet : Re: Indexed Properties - soluce :-) May I make a suggestion? You're causing the implicit creation of many strings ... and doing it in a loop (bad). Try this: html:form ... logic:iterate id=theRadio indexId=index name=myFormBean property=myRadios html:radio property=myRadios[%= index %] value=A/html:radio property=myRadios[%= index %] value=B/ /logic:iterate /html:form This way, you don't have the implicit string creation (you get one every time you use the + to concatenate). Object creation is slow :-( so don't do it if you don't have to. Regards, Eddie Arnaud HERITIER wrote: Ok I found myself a solution (it seems) : I need to modify the JSP page to index manually the property and I don't need to use the indexed=true which indexes the BEAN and not the property : html:form ... logic:iterate id=theRadio indexId=index name=myFormBean property=myRadios html:radio property=%=\myRadios[\+index+\]\% value=A/html:radio property=%=\myRadios[\+index+\]\% value=B/ /logic:iterate /html:form Arnaud -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Indexed Properties - soluce :-)
Hi there,
Actually when you are looking at the stuff done in the JSTL
all three ways pretty much work, because it contains a
scripting language ;).
Are there any plans on integrating it within Struts? I like
both libraries very much, and I recall a discussion was going
on a while ago about it?
If it is done this would make it is either:
1. property = all I want to write
2. property = %= java expression %
3. property = ${myRadios[param.index]}
(here with 'index' as a request variable ;))
Manfred.
-Original Message-
From: Arnaud HERITIER [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 17, 2002 10:29 AM
To: 'Struts Users Mailing List'; [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
All suggestions are welcome Eddie.
Your idea and your argumentations are good, but your proposed
solution doesn't work :-(
Explanations :
In a taglib property you can use either a string value or a
RunTime Expression (if allowed in the TLD).
If you use a string you have something like : property=all
I want to write
If you use a RT Expr you have something like :
property=%=java expression%
The tag libraries interpreter verify if the content of the
property begins with %= and ends with % . In this case it
suppose that it is a RT Expr and values it. In all other case
it supposes that the content is a string.
With your suggestion, property=myRadios[%= index %] the
tag libraries interpretor see that there's not %= at the
begining and % at the end. Then it passes the value
myRadios[%= index %] as a string to the taglib.
When the taglib get the content of property, it will analize
it and see that it is a indexed property because of [..] but
won't be able to interpret it and will launch an exception like :
java.lang.IllegalArgumentException: Invalid indexed property
'myRadios[%=index%]'
However, it is important to say that your advice is totally
good if you want to use a dynamic value in standard html tag.
I you have another idea to clean my code, don't hesitate to
propose it.
Arnaud.
attachment: winmail.dat
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RE: Indexed Properties - soluce :-)
On Wed, 17 Jul 2002 [EMAIL PROTECTED] wrote:
Date: Wed, 17 Jul 2002 15:30:38 +0200
From: [EMAIL PROTECTED]
Reply-To: Struts Users Mailing List [EMAIL PROTECTED]
To: [EMAIL PROTECTED],
'Struts Users Mailing List' [EMAIL PROTECTED],
[EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
Hi there,
Actually when you are looking at the stuff done in the JSTL
all three ways pretty much work, because it contains a
scripting language ;).
Are there any plans on integrating it within Struts? I like
both libraries very much, and I recall a discussion was going
on a while ago about it?
If it is done this would make it is either:
1. property = all I want to write
2. property = %= java expression %
3. property = ${myRadios[param.index]}
My current thinking is that we'll make some variant of #3 available in
Struts tags, in a release after 1.1. But this will primarily be as a
transition tool -- subsequent releases of Struts will be designed such
that you should use JSTL tags directly, as opposed to the corresponding
Struts tags in the bean and logic libraries. For the html tags,
we'll end up with JavaServer Faces tags when it's released.
(here with 'index' as a request variable ;))
Manfred.
Craig McClanahan
-Original Message-
From: Arnaud HERITIER [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, July 17, 2002 10:29 AM
To: 'Struts Users Mailing List'; [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
All suggestions are welcome Eddie.
Your idea and your argumentations are good, but your proposed
solution doesn't work :-(
Explanations :
In a taglib property you can use either a string value or a
RunTime Expression (if allowed in the TLD).
If you use a string you have something like : property=all
I want to write
If you use a RT Expr you have something like :
property=%=java expression%
The tag libraries interpreter verify if the content of the
property begins with %= and ends with % . In this case it
suppose that it is a RT Expr and values it. In all other case
it supposes that the content is a string.
With your suggestion, property=myRadios[%= index %] the
tag libraries interpretor see that there's not %= at the
begining and % at the end. Then it passes the value
myRadios[%= index %] as a string to the taglib.
When the taglib get the content of property, it will analize
it and see that it is a indexed property because of [..] but
won't be able to interpret it and will launch an exception like :
java.lang.IllegalArgumentException: Invalid indexed property
'myRadios[%=index%]'
However, it is important to say that your advice is totally
good if you want to use a dynamic value in standard html tag.
I you have another idea to clean my code, don't hesitate to
propose it.
Arnaud.
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RE: Indexed Properties - soluce :-)
Hi Craig,
Cool to hear that you are considering it ;). Can I help out
in any way?
Manfred Riem
If it is done this would make it is either:
1. property = all I want to write
2. property = %= java expression %
3. property = ${myRadios[param.index]}
My current thinking is that we'll make some variant of #3
available in Struts tags, in a release after 1.1. But this
will primarily be as a transition tool -- subsequent releases
of Struts will be designed such that you should use JSTL tags
directly, as opposed to the corresponding Struts tags in the
bean and logic libraries. For the html tags, we'll end
up with JavaServer Faces tags when it's released.
(here with 'index' as a request variable ;))
Manfred.
Craig McClanahan
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RE: Indexed Properties - soluce :-)
On Wed, 17 Jul 2002 [EMAIL PROTECTED] wrote:
Date: Wed, 17 Jul 2002 17:36:57 +0200
From: [EMAIL PROTECTED]
To: 'Craig R. McClanahan' [EMAIL PROTECTED],
'Struts Users Mailing List' [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: RE: Indexed Properties - soluce :-)
Hi Craig,
Cool to hear that you are considering it ;). Can I help out
in any way?
Sure.
Short term -- help us get the remaining bugs in 1.1 swatted so we can
release it and pay the appropriate amount of attention to this :-).
Longer term -- subscribe to the STRUTS-DEV mailing list, where the plans
for the future of Struts will be discussed and hammered out. Example
implementations of this sort of thing (either posted somewhere else or
perhaps in the contrib directory) would motivate more discussion about
exactly which tags and attributes this makes sense for.
Manfred Riem
Craig
If it is done this would make it is either:
1. property = all I want to write
2. property = %= java expression %
3. property = ${myRadios[param.index]}
My current thinking is that we'll make some variant of #3
available in Struts tags, in a release after 1.1. But this
will primarily be as a transition tool -- subsequent releases
of Struts will be designed such that you should use JSTL tags
directly, as opposed to the corresponding Struts tags in the
bean and logic libraries. For the html tags, we'll end
up with JavaServer Faces tags when it's released.
(here with 'index' as a request variable ;))
Manfred.
Craig McClanahan
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RE: Indexed Properties - soluce :-)
Why don't you use the Indexed property in the nightly builds? David Arnaud HERITIER [EMAIL PROTECTED] on 07/17/2002 04:29:00 AM Please respond to Struts Users Mailing List [EMAIL PROTECTED]; Please respond to [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED], [EMAIL PROTECTED] cc:(bcc: David Hay/Lex/Lexmark) Subject: RE: Indexed Properties - soluce :-) All suggestions are welcome Eddie. Your idea and your argumentations are good, but your proposed solution doesn't work :-( Explanations : In a taglib property you can use either a string value or a RunTime Expression (if allowed in the TLD). If you use a string you have something like : property=all I want to write If you use a RT Expr you have something like : property=%=java expression% The tag libraries interpreter verify if the content of the property begins with %= and ends with % . In this case it suppose that it is a RT Expr and values it. In all other case it supposes that the content is a string. With your suggestion, property=myRadios[%= index %] the tag libraries interpretor see that there's not %= at the begining and % at the end. Then it passes the value myRadios[%= index %] as a string to the taglib. When the taglib get the content of property, it will analize it and see that it is a indexed property because of [..] but won't be able to interpret it and will launch an exception like : java.lang.IllegalArgumentException: Invalid indexed property 'myRadios[%=index%]' However, it is important to say that your advice is totally good if you want to use a dynamic value in standard html tag. I you have another idea to clean my code, don't hesitate to propose it. Arnaud. -Message d'origine- De : Eddie Bush [mailto:[EMAIL PROTECTED]] Envoye : mardi 16 juillet 2002 17:54 A : Struts Users Mailing List Objet : Re: Indexed Properties - soluce :-) May I make a suggestion? You're causing the implicit creation of many strings ... and doing it in a loop (bad). Try this: html:form ... logic:iterate id=theRadio indexId=index name=myFormBean property=myRadios html:radio property=myRadios[%= index %] value=A/html:radio property=myRadios[%= index %] value=B/ /logic:iterate /html:form This way, you don't have the implicit string creation (you get one every time you use the + to concatenate). Object creation is slow :-( so don't do it if you don't have to. Regards, Eddie Arnaud HERITIER wrote: Ok I found myself a solution (it seems) : I need to modify the JSP page to index manually the property and I don't need to use the indexed=true which indexes the BEAN and not the property : html:form ... logic:iterate id=theRadio indexId=index name=myFormBean property=myRadios html:radio property=%=\myRadios[\+index+\]\% value=A/html:radio property=%=\myRadios[\+index+\]\% value=B/ /logic:iterate /html:form Arnaud -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Indexed Properties - soluce :-)
Ok I found myself a solution (it seems) :
I need to modify the JSP page to index manually the property and I don't
need to use the indexed=true which indexes the BEAN and not the property :
html:form ...
logic:iterate id=theRadio indexId=index name=myFormBean
property=myRadios
html:radio property=%=\myRadios[\+index+\]\% value=A/html:radio
property=%=\myRadios[\+index+\]\% value=B/
/logic:iterate
/html:form
Arnaud
-Message d'origine-
De : Arnaud HERITIER [mailto:[EMAIL PROTECTED]]
Envoyé : mardi 16 juillet 2002 15:50
À : Struts Users Mailing List (E-mail)
Objet : Indexed Properties
Hi guys.
I'm trying to use the Indexed properties of Struts 1.1.
What I understood about indexedProperties is that it allows
to have a set of
properties (in a form bean) represented by an array of Strings.
What I want to do is quite simple.
I have a form with a dynamic list of radio buttons groups.
in HTML it is something like this :
form ...
input type=radio name=myRadios1 value=Ainput type=radio
name=myRadios1 value=B checked=checked
input type=radio name=myRadios2 value=A
checked=checkedinput
type=radio name=myRadios2 value=B
input type=radio name=myRadiosN value=A
checked=checkedinput
type=radio name=myRadiosN value=B
/form
in Java with Struts I wrote a FormBean (class MyFormBean)
with a property
using an array of strings : String[] myRadios (with getter and setter)
in the JSP :
html:form ...
logic:iterate id=theRadio name=myFormBean property=myRadios
html:radio property=myRadios indexed=true value=A/html:radio
property=myRadios indexed=true value=B/
/logic:iterate
/html:form
If I initialize the property myRadios of my formbean with the
following
Array : String[] myRadios = {A,A,B,A};
the JSP generates the good numbers of radio items like this :
form ...
input type=radio name=myRadios1 value=Ainput type=radio
name=myRadios1 value=B
input type=radio name=myRadios2 value=Ainput type=radio
name=myRadios2 value=B
input type=radio name=myRadios3 value=Ainput type=radio
name=myRadios3 value=B
input type=radio name=myRadios4 value=Ainput type=radio
name=myRadios4 value=B
/form
but the problem is that this radios aren't initialized with
the good checked
properties.
What I'm waiting for is somethink like :
form ...
input type=radio name=myRadios1 value=A
checked=checkedinput
type=radio name=myRadios1 value=B
input type=radio name=myRadios2 value=A
checked=checkedinput
type=radio name=myRadios2 value=B
input type=radio name=myRadios3 value=Ainput type=radio
name=myRadios3 value=B checked=checked
input type=radio name=myRadios4 value=A
checked=checkedinput
type=radio name=myRadios4 value=B
/form
I don't understand what happens ??
Can you help me please.
Thx.
Arnaud HERITIER
EAI Consulting
Sopra Group
Tél. : +33 (0)1 53 33 44 74
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Re: Indexed Properties - soluce :-)
May I make a suggestion? You're causing the implicit creation of many strings ... and doing it in a loop (bad). Try this: html:form ... logic:iterate id=theRadio indexId=index name=myFormBean property=myRadios html:radio property=myRadios[%= index %] value=A/html:radio property=myRadios[%= index %] value=B/ /logic:iterate /html:form This way, you don't have the implicit string creation (you get one every time you use the + to concatenate). Object creation is slow :-( so don't do it if you don't have to. Regards, Eddie Arnaud HERITIER wrote: Ok I found myself a solution (it seems) : I need to modify the JSP page to index manually the property and I don't need to use the indexed=true which indexes the BEAN and not the property : html:form ... logic:iterate id=theRadio indexId=index name=myFormBean property=myRadios html:radio property=%=\myRadios[\+index+\]\% value=A/html:radio property=%=\myRadios[\+index+\]\% value=B/ /logic:iterate /html:form Arnaud -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: indexed properties
yup. Arron Maris Orbidans wrote: hello Do I have to use Nightly Build to get subj. ? 1.0.2 says Lemums1.jsp: Attribute indexed invalid according to the specified TLD at line 194, column 5 html:text indexed=yes property=labCits size=20 maxlength=20/ Searched mail archive but didnt find any useful. Maris Orbidans -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: indexed properties
RTFM http://jakarta.apache.org/struts/userGuide/struts-html.html and the mailling list archive which is full of examples http://www.mail-archive.com/struts-user@jakarta.apache.org/ Have fun! David Gaulin Tel / tél :(613) 946-9595 Email / courriel : [EMAIL PROTECTED] Facsimile / télécopieur : (613) 954-6012 Industry Canada | 235 Queen Street, Ottawa, Ontario, K1A 0H5 Industry Canada | 235, rue Queen, Ottawa (Ontario) K1A 0H5 -Original Message- From: Maris Orbidans [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 26, 2002 10:06 AM To: Struts Users Mailing List Subject: indexed properties How to use indexed properties? Please, give me an URL with examples or documents. Maris Orbidans -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed Properties
Sridhar, I've had to make one such application of equally nasty size. To get the job done the nested tags were made. They made the truly daunting task a walk in the park. They're in the nightly build, or if you're confined to an earlier release of Struts you can get them as a separate jar here... http://www.keyboardmonkey.com/struts Link above will also provide a primer, tutorial, and some advanced tricks. The latest docco is on the nightly build part of the struts site documentation. Arron. Sridhar M wrote: Hi, I have a requirement wherein my HTML Form contains around 100 textfields. I want to use struts to handle this form automatically. But the problem is that I can't define 100 setter and getter methods.I tried using indexed properties with form beans but did not succeed. Does Struts support the indexed properties concept defined by Javabeans. If so how to implement it. Thanks in advance, Sridhar __ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed Properties
I've had repeated problems with IE and Netscape on win9x platforms using a large number of text fields. The browser display seems to become corrupt after a short period of time using the screens. It might be worth your time to mock up some screens on your target platform(s) and make sure you don't encounter similar problems. -Erik At 08:48 AM 2/22/2002, Sridhar M wrote: Hi, I have a requirement wherein my HTML Form contains around 100 textfields. I want to use struts to handle this form automatically. But the problem is that I can't define 100 setter and getter methods.I tried using indexed properties with form beans but did not succeed. Does Struts support the indexed properties concept defined by Javabeans. If so how to implement it. Thanks in advance, Sridhar __ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed Properties
loads on this in the archive. Sridhar M [EMAIL PROTECTED] on 02/22/2002 09:48:36 AM Please respond to Struts Users Mailing List [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: Indexed Properties Hi, I have a requirement wherein my HTML Form contains around 100 textfields. I want to use struts to handle this form automatically. But the problem is that I can't define 100 setter and getter methods.I tried using indexed properties with form beans but did not succeed. Does Struts support the indexed properties concept defined by Javabeans. If so how to implement it. Thanks in advance, Sridhar __ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed Properties
Yes, that can be done currently with 1.0 or 1.0.1 using the multibox tag. Look through the archive and at the docs for multibox. If you still need more help, let us know. -Jonathan - Original Message - From: Marcus Brito [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Tuesday, January 22, 2002 4:57 AM Subject: Indexed Properties Hello, folks. I'm currently using Struts 1.0.1 and was wondering if there is a way to use indexed properties in ActionForm classes. I know there is support for this in HEAD, but I'm coding an enterprise-critical application and I hope not to use 'bleeding edge' components. I'll give an example of my need: I have a form dinamically generated using logic:iterate that contains a checkbox for each iteration. Now I need an action to process the whole form. As of now, the Action is defined as having no associated ActionForm, and the perform() method usess request.getParameterValues() calls to get the form values. There is a way to do this using ActionForms? -- Ja ne, Pazu mailto: [EMAIL PROTECTED] Anime Gaiden: de fãs para fãs, sempre. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed Properties
Em Ter, 2002-01-22 às 10:57, Jonathan James escreveu: Yes, that can be done currently with 1.0 or 1.0.1 using the multibox tag. Look through the archive and at the docs for multibox. If you still need more help, let us know. I mentioned the checkbox as an example. There aro other forms controls for each iteration: 2 text inputs. So, for each iteration I've got a checkbox and 2 input fields. The number of iterations is variable (it's the number of records in the DB). And I need a struts action to process them all. -- Ja ne, Pazu mailto: [EMAIL PROTECTED] Anime Gaiden: de fãs para fãs, sempre. signature.asc Description: This is a digitally signed message part
RE: Indexed Properties
-Original Message- From: Marcus Brito [mailto:[EMAIL PROTECTED]] Sent: dinsdag 22 januari 2002 11:57 To: Struts Users Mailing List Subject: Indexed Properties Hello, folks. I'm currently using Struts 1.0.1 and was wondering if there is a way to use indexed properties in ActionForm classes. I know there is support for this in HEAD, but I'm coding an enterprise-critical application and I hope not to use 'bleeding edge' components. I'll give an example of my need: I have a form dinamically generated using logic:iterate that contains a checkbox for each iteration. Now I need an action to process the whole form. As of now, the Action is defined as having no associated ActionForm, and the perform() method usess request.getParameterValues() calls to get the form values. There is a way to do this using ActionForms? I recommend using the taglib from http://www.keyboardmonkey.com/struts if I were you. This does not force you to use the bleeding-edge struts version, but I think there's less chance that you'll encounter bugs than if you would try this on an on-the-fly basis for your own webapp via ActionForms (I tried both. The ActionForm way was *very* error-prone). FWIW, tomK -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed properties...setters and getters
Is table[5].minimumSales the tag's name or its property property?... Have you tried the nested extension for doing this stuff?... Arron. TODD HARNEY wrote: If I have a html:text field on my form with the property named table[5].minimumSales, wouldn't this result in: 1) A getTable(5).getMinimumSales() for displaying the form 2) A getTable(5).setMinimumSales(data) for posting the form through an Action class I am not seeing this behavior at all in my web application and I am using the Struts 1.0.1 release. Any ideas? Any suggestions on how to debug this? Thanks, Todd Harney -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed properties...setters and getters
Is the indexed feature supported in 1.0.1 ? don't think so... not sure. Use the nightly builds. Struts Users Mailing List [EMAIL PROTECTED] wrote: If I have a html:text field on my form with the property named table[5].min imumSales, wouldn't this result in: 1) A getTable(5).getMinimumSales() for displaying the form 2) A getTable(5).setMinimumSales(data) for posting the form through an Action class I am not seeing this behavior at all in my web application and I am using the Struts 1.0.1 release. Any ideas? Any suggestions on how to debug this? Thanks, Todd Harney -- To unsubscribe, e-mail: For additional commands, e-mail: -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Indexed properties and populate error
Yep, just posted link to it earlier...see http://www.mail-archive.com/struts-user@jakarta.apache.org/msg12084.html hth, Dave Torsten Trzeciak [EMAIL PROTECTED] on 10/05/2001 01:22:20 PM Please respond to [EMAIL PROTECTED] To: struts struts [EMAIL PROTECTED] cc:(bcc: David Hay/Lex/Lexmark) Subject: Indexed properties and populate error Hi, I like to put values of an array in about 20 input fields. I can do this with indexed properties (property=element[i] but after submitting this form I get a beanutil error. What 's wrong? Is there an example with indexed properties available?
Re: indexed properties weirdness. I'm desperate...
Hi Marcel,
Unfortunately using the indexed tags you cannot currently use nested properties.
This is on my todo list, but I just got back from vacation and may take a while.
Solution with scriptlets was posted a while back, I believe,
Cheers,
Dave
Marcel Maré [EMAIL PROTECTED] on 08/11/2001 11:10:45
AM
Please respond to [EMAIL PROTECTED]
To: Mailinglist Struts-User
[EMAIL PROTECTED]
cc:(bcc: David Hay/Lex/Lexmark)
Subject: indexed properties weirdness. I'm desperate...
This is driving me crazy. I've spent days figuring this out. Yes, I have
read other postings about this, but obviously I'm missing something (part of
my brain perhaps).
What I want is the form bean to contain a list of objects, which have some
properties. The jsp will iterate over the objects in the list to display
it's (nested) properties in a form. Sounds simple? It isn't.
I just can't figure out what property getters I *have* to implement.
This is a test case I have created:
=
The Form bean
=
public class EditCartForm extends ActionForm {
// other stuff omitted
private ArrayList indexables = new ArrayList();
public EditCartForm() {
}
public Indexable getIndexable(int index) {
return (Indexable) indexables.get(index);
}
public List getIndexables() {
return indexables;
}
}
==
The Indexable class that is in the list
==
public class Indexable extends Object implements java.io.Serializable {
private String stringProp;
private Integer intObjProp;
private int intProp;
public Indexable() {
}
public Indexable( int value ) {
intProp = value;
intObjProp = new Integer(intProp);
stringProp = String.valueOf(intProp);
}
public String getStringProp() {
return stringProp;
}
public void setStringProp(String value) {
this.stringProp = value;
}
public Integer getIntObjProp() {
return intObjProp;
}
public void setIntObjProp(Integer intObjProp) {
this.intObjProp = intObjProp;
}
public int getIntProp() {
return intProp;
}
public void setIntProp(int intProp) {
this.intProp = intProp;
}
}
===
struts-config
===
action path=/someAction
type=com.webtothemax.shop.actions.AddToCartAction
name=theForm
scope=session
validate=false
===
The jsp
===
html:form action=/someAction.do
TABLE border=1 borderwidth=1 cellspacing=0
logic:iterate id=cartItem name=theForm
type=com.webtothemax.shop.common.CartItem property=cart.cartItems
TR
TDhtml:text name=theForm property=indexable.stringProp
indexed=true //TD
TDhtml:textproperty=indexable.stringProp
indexed=true //TD
TDhtml:text property=indexableindexed=true
//TD
: This is just an example: I have only 1 of these lines in the real file.
:
: stuff omitted
:
: Note that I iterate over another collection (which has the same size)
===
What I would expect:
html:text property=indexable.stringProp indexed=true /
to be rendered as something like :
INPUT TYPE=TEXT NAME=theForm.indexable[12] VALUE=%=
theForm.getIndexable(12).getStringProp() %
Where because of omitting the name attribute the formbean should be
referenced.
This is what I get in reality:
When I include the name attribute:
ERROR: No getter method for property indexable.stringProp of bean
theForm
When I omit the name attribute:
ERROR: No getter method for property indexable.stringProp of bean
org.apache.struts.taglib.html.BEAN
When also omit stringProp:
ERROR: No getter method for property indexable of bean
org.apache.struts.taglib.html.BEAN
So, if somebody could spell it out for me, real slowly, I would be very
grateful.
TIA
Marcel Maré
WebToTheMax
E [EMAIL PROTECTED]
W http://www.webtothemax.com
RE: Indexed properties
Is the indexed property a non-standard struts patch / extension I have to use? Thanks Nathan It is non-standard (for Struts 1.0 anyway). Have a look at http://husted.com/about/struts/indexed-tags.htm Best regards, Mark Mahieu
Re: Indexed properties
At 02:23 PM 7/25/2001 -0400, you wrote: Nathan, Hi. Currently you have to use my changed tags...but it looks like they will be in the nightly build by the end of the week. You can get them at http://husted.com/about/struts/indexed-tags.htm, and I attached some example source code to a previous message which was just mentioned, if you want to look at that. Cheers, Dave I have a couple of questions about your mods. At our site we are using a different set of modifications, posted by some other Struts user which seems to accomplish the same thing as your mods. The major difference seems to be that yours requires an additional attribute to specify that the particular input field is to use an indexed property accessor. I'm curious as to why you made this choice? The mods we are using automatically use an indexed accessor if the input field is contained inside of an iterate tag. Do you have an example of when you would have an input field inside of an iterate tag when you wouldn't want to use an indexed property name? (I'm not trying to argue with your decision, just trying to get a better understanding of your thoughts). The other issue, which we just came across today, with the other indexed property mod, is that it would fail to work correctly if you had iterators inside of iterators. We had a case where we used an iterator to access a collection of beans, and then iterated over the contents of each of the beans. The resultant HTML needed to look like this to work correctly: input type=text name=firstTable[n].secondTable[m].propertyName Will your mods handle nested iterators correctly? Finally, are your mods going to be part of the official build, or are they included in some sort of user supplied extensions? I missed the original discussion about your modifications. Thanks! James W. Howe mailto:[EMAIL PROTECTED] Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103
Re: Indexed properties
At 05:20 PM 7/25/2001 -0400, you wrote:
Hi James,
Thanks for your note - made me think a bit!
Would be interested in knowing more about the other indexed tags that were
posted and you are using. I know either Jeff Trent or Martin Cooper had
produced some tags which had a different name ie IndexedXXXTag.
I believe the mods we have are based on those posted by Niall
Pemberton. In those mods, a handful of HTML tags had their doStartTag()
method modified to be changed from:
results.append( name=\);
results.append(this.property);
to
results.append( name=\);
results.append(propertyName());
where propertyName() was implemented like this:
protected String propertyName() {
IterateTag iterateTag = (IterateTag) findAncestorWithClass(this,
IterateTag.class);
return iterateTag == null
? this.property
: iterateTag.getProperty() + [ +
iterateTag.getIndex() + ]. + this.property;
}
In the original mods that we had, the getProperty method of IterateTag
simply returned the property field value. I modified it to invoke a
propertyName() method whose implementation is the same as that given
above. This allows for a recursive buildup of indexed property fields when
an HTML tag is included inside of any number of nested iterate tags.
James W. Howe mailto:[EMAIL PROTECTED]
Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html
Ann Arbor, MI 48103
RE: indexed properties
Cameron,
Does the Action that is run when you submit the form have CourseList
associated with it?
If that sorts out the issue with not finding CourseList then I think
CourseList should look like this:
public final class CourseList extends ActionForm
{
private ArrayList courseList = new ArrayList(6);
public ArrayList getCourseList() {
return(this.courseList);
}
public void setCourseList(ArrayList courseList) {
this.courseList = courseList;
}
public CourseForm getCourseList(int index) {
return (CourseForm)courseList.get(index);
}
}
Then in your CourseForm bean you need setters for all the properties (i.e.
crstitle, crsdept, crshrs, crsnum).
Niall
-Original Message-
From: cahana [mailto:[EMAIL PROTECTED]]
Sent: 07 July 2001 21:40
To: [EMAIL PROTECTED]
Subject: indexed properties
Hi everyone-
I need some help on using the indexed properties for html:text option.
I've implemented Dave Hay's modification and can get the input boxes to show
up using the iterate tag.
logic:iterate id=course name=CourseList property=courseList
tr
td%= courseNumber++ %/td
tdhtml:text name=course property=crstitle size=25
maxlength=50 indexed=true//td
tdhtml:text name=course property=crsdept size=6 maxlength=9
indexed=true//td
tdhtml:text name=course property=crsnum size=5 maxlength=6
indexed=true//td
tdhtml:text name=course property=crshrs size=5 maxlength=1
indexed=true//td
/tr
/logic:iterate
This is what my CourseList bean looks like:
public final class CourseList extends ActionForm
{
private ArrayList courseList = new ArrayList(6);
public ArrayList getCourseList() {
return(this.courseList);
}
public void setCourseList(ArrayList courseList) {
this.courseList = courseList;
}
public CourseForm getCourseForm(int index) {
return (CourseForm)courseList.get(index);
}
public void setCourseForm(int index, CourseForm course) {
this.courseList.add(index, course);
}
}
The problem i have is that when i try to submit the information and try to
access CourseList.getCourseList(), it bombs and says CourseList cannot be
found. The scope is request. I tried putting it in the session and can
access it that way but it doesn't have the changes that were made on the
form. Anybody know what i'm doing wrong?
thanks,
cameron
Re: indexed properties
In my struts-config.xml, i have CourseList as the form associated with the
Action to submit. I also put a jsp:useBean for CourseList in the jsp. But
it still doesn't work. I'll keep trying.
Do you know if there is a way to associate mulitple forms with a single
action in the struts-config.xml file i.e.
actionpath=/registration
type=DisplayRegistrationAction
name=registrationForm, accountForm
scope=request
validate=false
forward name=success path=/acct_create.jsp/
/action
Cameron
- Original Message -
From: Niall Pemberton [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, July 07, 2001 11:10 AM
Subject: RE: indexed properties
Cameron,
Does the Action that is run when you submit the form have CourseList
associated with it?
If that sorts out the issue with not finding CourseList then I think
CourseList should look like this:
public final class CourseList extends ActionForm
{
private ArrayList courseList = new ArrayList(6);
public ArrayList getCourseList() {
return(this.courseList);
}
public void setCourseList(ArrayList courseList) {
this.courseList = courseList;
}
public CourseForm getCourseList(int index) {
return (CourseForm)courseList.get(index);
}
}
Then in your CourseForm bean you need setters for all the properties
(i.e.
crstitle, crsdept, crshrs, crsnum).
Niall
-Original Message-
From: cahana [mailto:[EMAIL PROTECTED]]
Sent: 07 July 2001 21:40
To: [EMAIL PROTECTED]
Subject: indexed properties
Hi everyone-
I need some help on using the indexed properties for html:text option.
I've implemented Dave Hay's modification and can get the input boxes to
show
up using the iterate tag.
logic:iterate id=course name=CourseList property=courseList
tr
td%= courseNumber++ %/td
tdhtml:text name=course property=crstitle size=25
maxlength=50 indexed=true//td
tdhtml:text name=course property=crsdept size=6
maxlength=9
indexed=true//td
tdhtml:text name=course property=crsnum size=5 maxlength=6
indexed=true//td
tdhtml:text name=course property=crshrs size=5 maxlength=1
indexed=true//td
/tr
/logic:iterate
This is what my CourseList bean looks like:
public final class CourseList extends ActionForm
{
private ArrayList courseList = new ArrayList(6);
public ArrayList getCourseList() {
return(this.courseList);
}
public void setCourseList(ArrayList courseList) {
this.courseList = courseList;
}
public CourseForm getCourseForm(int index) {
return (CourseForm)courseList.get(index);
}
public void setCourseForm(int index, CourseForm course) {
this.courseList.add(index, course);
}
}
The problem i have is that when i try to submit the information and try to
access CourseList.getCourseList(), it bombs and says CourseList cannot be
found. The scope is request. I tried putting it in the session and can
access it that way but it doesn't have the changes that were made on the
form. Anybody know what i'm doing wrong?
thanks,
cameron
Re: indexed properties
Niall-
Thanks i got the CourseList to work.
Cameron
- Original Message -
From: Niall Pemberton [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Saturday, July 07, 2001 11:10 AM
Subject: RE: indexed properties
Cameron,
Does the Action that is run when you submit the form have CourseList
associated with it?
If that sorts out the issue with not finding CourseList then I think
CourseList should look like this:
public final class CourseList extends ActionForm
{
private ArrayList courseList = new ArrayList(6);
public ArrayList getCourseList() {
return(this.courseList);
}
public void setCourseList(ArrayList courseList) {
this.courseList = courseList;
}
public CourseForm getCourseList(int index) {
return (CourseForm)courseList.get(index);
}
}
Then in your CourseForm bean you need setters for all the properties
(i.e.
crstitle, crsdept, crshrs, crsnum).
Niall
RE: Indexed Properties
The problem is that your getUsers() return an array of User instances while
your getUsers(int i) returns a String.
As a result the PropertyDescriptor class for the users property will
consider the User class as the type of your property, and will check the
existence of User getUsers(int i) and void setUser(int i, User user).
You must make sure that indexed and non-indexed read/write methods use the
same type.
Fr.
-Original Message-
From: Jason Rosenblum [mailto:[EMAIL PROTECTED]]
Sent: 27 June 2001 18:21
To: '[EMAIL PROTECTED]'
Subject: Indexed Properties
Hello all,
I'm trying to get my code to work with indexed properties. Thanks to Dave
Hay and his Struts tweak, I was able to generate input types like this:
input type=text name=users[0].username size=12 value=
input type=text name=users[0].role size=12 value=
using the following Struts tags:
html:text name=users property=username size=12 indexed=true/
html:text name=users property=role size=12 indexed=true/
The problem is that I cannot get my ActionForm to pick up these input
fields. I wrote several setters and getters in my ActionForm:
/**
* Return the users.
*/
public String getUsers(int i) {
return (users[i].getUsername());
}
/**
* Set a user.
*
* @param user
* @param index
*/
public void setUsers(int i, String user) {
this.users[i].setUsername(user);
}
/**
* Return the users.
*/
public User[] getUsers() {
return (this.users);
}
/**
* Set a user.
*
* @param user list
*/
public void setUsers(User[] users) {
this.users = users;
}
/**
* Return the roles.
*/
public String getRoles(int i) {
return (users[i].getRole());
}
/**
* Set a role.
*
* @param role
* @param index
*/
public void setRoles(int i, String role) {
this.users[i].setRole(role);
}
/**
* Return the roles.
*/
public User[] getRoles() {
return (this.users);
}
/**
* Set a role.
*
* @param role list
*/
public void setRoles(User[] roles) {
this.users = users;
}
Do you see anything wrong with this scheme? Currently, the ActionForm
returns null for all items in the User[] when I call any of the get methods.
Please help.
~Jason
The information in this email is confidential and is intended solely
for the addressee(s).
Access to this email by anyone else is unauthorised. If you are not
an intended recipient, you must not read, use or disseminate the
information contained in the email.
Any views expressed in this message are those of the individual
sender, except where the sender specifically states them to be
the views of Capco.
http://www.capco.com
***
Re: Indexed Properties
Jason,
I believe you need a
public User getUser(int index)
{
return (users[i]);
}
For the examples I sent you, I have the following form:
public final class ParametersForm extends ActionForm
{
// --- Instance Variables
/**
* The parameter list
*/
private Vector parameterList = new Vector();
// --- Properties
/**
* Return the list of parameters
*/
public Vector getParameterList()
{
return(this.parameterList);
}
/**
* Set the list of parameters
*
* @param parameterList The new list
*/
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
/**
* Get a particular parameter from the parameterList, based on index
*
* @param index The index of the parameter to retrieve
*/
public Parameter getParameter(int index)
{
return (Parameter)parameterList.elementAt(index);
}
}
and I obviously have get/set methods in my Parameter object to get the parameter
variables.
Cheers.
Dave
Jason Rosenblum [EMAIL PROTECTED] on 06/27/2001
12:20:51 PM
Please respond to [EMAIL PROTECTED]
To: '[EMAIL PROTECTED]'
[EMAIL PROTECTED]
cc:(bcc: David Hay/Lex/Lexmark)
Subject: Indexed Properties
Hello all,
I'm trying to get my code to work with indexed properties. Thanks to Dave Hay
and his Struts tweak, I was able to generate input types like this:
input type=text name=users[0].username size=12 value=
input type=text name=users[0].role size=12 value=
using the following Struts tags:
html:text name=users property=username size=12 indexed=true/
html:text name=users property=role size=12 indexed=true/
The problem is that I cannot get my ActionForm to pick up these input fields. I
wrote several setters and getters in my ActionForm:
/**
* Return the users.
*/
public String getUsers(int i) {
return (users[i].getUsername());
}
/**
* Set a user.
*
* @param user
* @param index
*/
public void setUsers(int i, String user) {
this.users[i].setUsername(user);
}
/**
* Return the users.
*/
public User[] getUsers() {
return (this.users);
}
/**
* Set a user.
*
* @param user list
*/
public void setUsers(User[] users) {
this.users = users;
}
/**
* Return the roles.
*/
public String getRoles(int i) {
return (users[i].getRole());
}
/**
* Set a role.
*
* @param role
* @param index
*/
public void setRoles(int i, String role) {
this.users[i].setRole(role);
}
/**
* Return the roles.
*/
public User[] getRoles() {
return (this.users);
}
/**
* Set a role.
*
* @param role list
*/
public void setRoles(User[] roles) {
this.users = users;
}
Do you see anything wrong with this scheme? Currently, the ActionForm returns
null for all items in the User[] when I call any of the get methods. Please
help.
~Jason
Re: Indexed Properties
Is this all in one class? It shouldn't even compile
if you have getUsers() returning two different types.
Here is a snippet on using an array.
public User getUser(int index) {
return user[index];
}
public void setUser(int index, User user) {
this.user[index] = user;
}
Then you could do user[0].userName, which is the
same as getUser(0).getUserName() or
getUser(0).setUserName(Joe).
David
--- Jason Rosenblum [EMAIL PROTECTED] wrote:
Hello all,
I'm trying to get my code to work with indexed
properties. Thanks to Dave Hay and his Struts tweak,
I was able to generate input types like this:
input type=text name=users[0].username
size=12 value=
input type=text name=users[0].role size=12
value=
using the following Struts tags:
html:text name=users property=username
size=12 indexed=true/
html:text name=users property=role size=12
indexed=true/
The problem is that I cannot get my ActionForm to
pick up these input fields. I wrote several setters
and getters in my ActionForm:
/**
* Return the users.
*/
public String getUsers(int i) {
return (users[i].getUsername());
}
/**
* Set a user.
*
* @param user
* @param index
*/
public void setUsers(int i, String user) {
this.users[i].setUsername(user);
}
/**
* Return the users.
*/
public User[] getUsers() {
return (this.users);
}
/**
* Set a user.
*
* @param user list
*/
public void setUsers(User[] users) {
this.users = users;
}
/**
* Return the roles.
*/
public String getRoles(int i) {
return (users[i].getRole());
}
/**
* Set a role.
*
* @param role
* @param index
*/
public void setRoles(int i, String role) {
this.users[i].setRole(role);
}
/**
* Return the roles.
*/
public User[] getRoles() {
return (this.users);
}
/**
* Set a role.
*
* @param role list
*/
public void setRoles(User[] roles) {
this.users = users;
}
Do you see anything wrong with this scheme?
Currently, the ActionForm returns null for all items
in the User[] when I call any of the get methods.
Please help.
~Jason
__
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
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RE: Indexed Properties
that did the trick.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, June 27, 2001 9:32 AM
To: [EMAIL PROTECTED]
Subject: Re: Indexed Properties
Jason,
I believe you need a
public User getUser(int index)
{
return (users[i]);
}
For the examples I sent you, I have the following form:
public final class ParametersForm extends ActionForm
{
// --- Instance Variables
/**
* The parameter list
*/
private Vector parameterList = new Vector();
// --- Properties
/**
* Return the list of parameters
*/
public Vector getParameterList()
{
return(this.parameterList);
}
/**
* Set the list of parameters
*
* @param parameterList The new list
*/
public void setParameterList(Vector parameterList)
{
this.parameterList = parameterList;
}
/**
* Get a particular parameter from the parameterList, based on index
*
* @param index The index of the parameter to retrieve
*/
public Parameter getParameter(int index)
{
return (Parameter)parameterList.elementAt(index);
}
}
and I obviously have get/set methods in my Parameter object to get the parameter
variables.
Cheers.
Dave
Jason Rosenblum [EMAIL PROTECTED] on 06/27/2001
12:20:51 PM
Please respond to [EMAIL PROTECTED]
To: '[EMAIL PROTECTED]'
[EMAIL PROTECTED]
cc:(bcc: David Hay/Lex/Lexmark)
Subject: Indexed Properties
Hello all,
I'm trying to get my code to work with indexed properties. Thanks to Dave Hay
and his Struts tweak, I was able to generate input types like this:
input type=text name=users[0].username size=12 value=
input type=text name=users[0].role size=12 value=
using the following Struts tags:
html:text name=users property=username size=12 indexed=true/
html:text name=users property=role size=12 indexed=true/
The problem is that I cannot get my ActionForm to pick up these input fields. I
wrote several setters and getters in my ActionForm:
/**
* Return the users.
*/
public String getUsers(int i) {
return (users[i].getUsername());
}
/**
* Set a user.
*
* @param user
* @param index
*/
public void setUsers(int i, String user) {
this.users[i].setUsername(user);
}
/**
* Return the users.
*/
public User[] getUsers() {
return (this.users);
}
/**
* Set a user.
*
* @param user list
*/
public void setUsers(User[] users) {
this.users = users;
}
/**
* Return the roles.
*/
public String getRoles(int i) {
return (users[i].getRole());
}
/**
* Set a role.
*
* @param role
* @param index
*/
public void setRoles(int i, String role) {
this.users[i].setRole(role);
}
/**
* Return the roles.
*/
public User[] getRoles() {
return (this.users);
}
/**
* Set a role.
*
* @param role list
*/
public void setRoles(User[] roles) {
this.users = users;
}
Do you see anything wrong with this scheme? Currently, the ActionForm returns
null for all items in the User[] when I call any of the get methods. Please
help.
~Jason
