Re: Question regarding old post (ResultSet and DataTable)
create table mybean (id int primary key, name varchar, age int) bla bla
bla
//make a model
class MyBean implements Serializable {
private String name;
private int age;
}
//create your idataprovider
private class ResultSetDataProvider implements IDataProvider
{
private Connection c;
public ResultSetDataProvider (Connection _c){
c = _c;
}
public Iterator iterator(int start, int count) {
String query = SELECT name, age FROM mybean LIMIT + start + , + count;
PrepareStatement pq = c.createStatement(query );
ResultSet set = pq.executeQuery();
//make a list to carry your records via the bean to your datatable
ListMyBean dataList = new LinkedListMyBean();
while(set.next()){
//create your bean for each record, hopefully JDBC 4 should soon be here
MyBean bean = new MyBean();
bean.setName(set.getString(name));
bean.setAge(set.getInt(age));
dataList.add(bean);
}
return dataList.iterator();
}
public int size() {
String countQ = SELECT COUNT(ID) FROM TABLE;
PrepareStatement pq = c.createStatement(countQ);
ResultSet set = pq.executeQuery();
if(set.next())
return set.getInt(1);
else
return 0;
}
public IModel model(Object arg0) {
return new Model((MyBean)arg);
}
}
//i would not know if there is some other more efficient manner but this is
as simple enough
// and it works with DataView, Paging, DataTable
this should not be too hard, is it? or you need something else
On 8/23/07, dtoffe [EMAIL PROTECTED] wrote:
Uhh, well... yes, you are right.
Excuse me but I fail to see how that could help to solve the problem I
presented, please keep in mind that I'm not native english speaker and
perhaps I'm not using the proper words, I'll try to explain that more
precisely.
As I said in my previous post, I do my database queries in this way:
ResultSet rs = cs.executeQuery();
In fact, later I'll use a code generator to ease the task, but let's
assume for simplicity that I get the result in a java.sql.ResultSet. But,
as
stated in the Wicket Extension Javadoc, I must create the DataTable
instances in this way:
DataTable table = new DataTable(datatable, columns, new
UserProvider(), 10);
Specifically, the third parameter must implement
wicket.markup.repeater.data.IDataProvider; which ResultSet doesn't
implement, so I must provide for a means to overcome this.
I didn't intended to mean that ResultSets are more generic that
DataProviders. When I talked about a general way of handling ResultSet I
tried to mean independently of whether I'm querying a Database Table,
Stored
Porcedure, with read-only or read-write cursors, uni or bi-directional,
and
so. I'm concerned about how well this will go in regard of sortable and
pageable tables.
Perhaps there is a mean to do all that already in the Wicket library,
but I havent found it yet. In the examples I've seen so far the database
is represented by some kind of static list, like in the ContactsDatabase
and
ContactGenerator classes in the DataTable example, but I'm looking for a
way
of using data from queries to a database engine.
The way I see it, I'll have to develop a class which could perhaps
extends ResultSet, or one of the RowSet implementations, and implements
the
IDataProvider interface, am I right on this one ??
Thanks for your help !!
Daniel
igor.vaynberg wrote:
actually idataprovider is more generic then resultset :)
-igor
On 8/22/07, dtoffe [EMAIL PROTECTED] wrote:
Hi !!
I've found this old thread:
http://www.nabble.com/RE%3A-DataView-%28extensions%29-tf1287013.html#a3423281
If there are new or better ways to do this that came up after this
thread, I'm also interested in knowing. Having a way of easily handling
the database resultset and a list of the resultset headers (column
titles) would be great, the more generic, the better.
Thanks !!
Daniel
--
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Re: Question regarding old post (ResultSet and DataTable)
perhaps you can email frank and ask him, it is unfortunate he did not post his code on a wiki page somewhere. http://www.nabble.com/displaying-java.sql.Timestamp-tf1333211.html#a3561689 -igor On 8/22/07, dtoffe [EMAIL PROTECTED] wrote: Uhh, well... yes, you are right. Excuse me but I fail to see how that could help to solve the problem I presented, please keep in mind that I'm not native english speaker and perhaps I'm not using the proper words, I'll try to explain that more precisely. As I said in my previous post, I do my database queries in this way: ResultSet rs = cs.executeQuery(); In fact, later I'll use a code generator to ease the task, but let's assume for simplicity that I get the result in a java.sql.ResultSet. But, as stated in the Wicket Extension Javadoc, I must create the DataTable instances in this way: DataTable table = new DataTable(datatable, columns, new UserProvider(), 10); Specifically, the third parameter must implement wicket.markup.repeater.data.IDataProvider; which ResultSet doesn't implement, so I must provide for a means to overcome this. I didn't intended to mean that ResultSets are more generic that DataProviders. When I talked about a general way of handling ResultSet I tried to mean independently of whether I'm querying a Database Table, Stored Porcedure, with read-only or read-write cursors, uni or bi-directional, and so. I'm concerned about how well this will go in regard of sortable and pageable tables. Perhaps there is a mean to do all that already in the Wicket library, but I havent found it yet. In the examples I've seen so far the database is represented by some kind of static list, like in the ContactsDatabase and ContactGenerator classes in the DataTable example, but I'm looking for a way of using data from queries to a database engine. The way I see it, I'll have to develop a class which could perhaps extends ResultSet, or one of the RowSet implementations, and implements the IDataProvider interface, am I right on this one ?? Thanks for your help !! Daniel igor.vaynberg wrote: actually idataprovider is more generic then resultset :) -igor On 8/22/07, dtoffe [EMAIL PROTECTED] wrote: Hi !! I've found this old thread: http://www.nabble.com/RE%3A-DataView-%28extensions%29-tf1287013.html#a3423281 If there are new or better ways to do this that came up after this thread, I'm also interested in knowing. Having a way of easily handling the database resultset and a list of the resultset headers (column titles) would be great, the more generic, the better. Thanks !! Daniel -- View this message in context: http://www.nabble.com/Question-regarding-old-post-%28ResultSet-and-DataTable%29-tf4314874.html#a12287761 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
{wicket 1.3 beta 2} AjaxFormComponentUpdatingBehavior broken?
Hi I have a page where theres two dropdownchoices and two panels acordingly. when you click dropdown a and select a new item panel a should be updated to the new item, I've used ajaxformComponentupdatingbehavior( have also tried ajaxformsubmittingbehavior). However it seems as the model of the dropdown are never updated, im using compoundpropertymodel (have also tried reverting and just using a simple model). I just cant figure out whats wrong. Please take a look any hints will be appreciated http://papernapkin.org/pastebin/view/1386 Havent had the chance yet to tryout beta 3, not sure if its gone there. regards Nino - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: wicket vs tapestry ?
But since I'm currently learning, I can't help wondering at each step where the data gets stored magically. Likely that will go away once I know my way around Wicket. It's also not a complaint, just part of getting to know the best way of doing things. I think it's a very good idea you have that in the back of your mind all the time. I hope it doesn't spoil the experience too much, and that you find Wicket's memory tradeoff acceptable. Cheers, Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: DownloadLink hanging
inside shared
resource you can simply call Session.get() to get to wicket session.
Unfortunately, it looks like this is not possible, because I'm getting
following exception:
java.lang.IllegalStateException: you can only locate or create sessions in the
context of a request cycle
org.apache.wicket.Session.findOrCreate(Session.java:250)
org.apache.wicket.Session.get(Session.java:279)
com.syntevo.hpsmart.DownloadResource.getResourceStream(DownloadResource.java:18)
org.apache.wicket.protocol.http.WicketFilter.getLastModified(WicketFilter.java:708)
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:122)
Our resource code looks like this:
final class DownloadResource extends Resource {
public IResourceStream getResourceStream() {
final OurSession session = (OurSession)Session.get();
if (session == null) {
return null;
}
final File file = session.getFileToDownload();
if (file == null) {
return null;
}
return new MyFileResourceStream(file);
}
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
you can register a shared resource and build a url for it. inside shared
resource you can simply call Session.get() to get to wicket session.
see application.getsharedresources();
alternatively you can extend WicketSessionFilter which will also allow you
to perform Session.get()
-igor
On 8/21/07, Thomas Singer [EMAIL PROTECTED] wrote:
Disclaimer: I'm not experienced with filters or wicket resources.
Is it possible to create a (shared) wicket resource which can be
filtered,
so it only is accessible when the right flag is set in OurWebSession?
Or would you suggest to write an own javax.servlet.Filter which does this
flag-check and redirects internally to a hidden location which then is
send
to the client by Tomcat when the right flag is set?
Thanks in advance.
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
On 8/21/07, Thomas Singer [EMAIL PROTECTED] wrote:
Hi Igor,
yep, DownloadLinks will block because requests to the same page are
serialized.
Sorry, I don't understand, why links to downloadable resources should
be
blocking or serialized. Usually downloads are the larger parts of an
application and hence should never lock the application.
because this is how this component is designed to work. if you dont like
it
you can build your own that doesnt block.
to work around it register a shared resource or create a servlet that
can
stream the file (resoureces in wicket are not serialized), then create
a
link component that can build a download url.
Well, I guess, we can't use a servlet, because wicket is registered to
/*, so it will get everything.
wicket is a filter, so even though it is mapped to /* it will let urls
that
are not wicket urls pass through. how do you think it lets you download
static images...
so if you map your wicket filter on /* and the servlet on /download and
yo
have no download mount in wicket the filter will let /download/*
requests
go to the servlet.
-igor
Could you please give some more hints
about shared resources? I've tried to search
http://cwiki.apache.org/WICKET/ without luck.
Alternatively, is it possible to complete shut off the serialization
(which seems to cause this and maybe even other blocking problems)?
--
Best regards
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
Igor Vaynberg wrote:
yep, DownloadLinks will block because requests to the same page are
serialized.
to work around it register a shared resource or create a servlet that
can
stream the file (resoureces in wicket are not serialized), then create
a
link component that can build a download url.
-igor
On 8/20/07, Thomas Singer [EMAIL PROTECTED] wrote:
Hi,
We are using Wicket 1.3 beta 2 running in Tomcat and have a couple of
DownloadLinks on a page (created with 'new DownloadPage(parameters)')
for
larger files (a couple of MB). I open different tabs of the same page
in
Opera and click these download links, so the downloads should happen
in
parallel. Unfortunately, the web-application seems to hang until the
previous files were completely downloaded. Even normal pages do not
show
up.
This does not happen for other websites (so our internet connection
couldn't
be the reason) and not for the same project with
old-JSP-/Servlet-technology
at a different server running in the same version of Tomcat.
Is this a known problem? How to work around?
--
Best regards,
Thomas Singer
_
SyyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
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Re: wicket vs tapestry ?
If you're interested, a contribution for the address book example with exPOJO/ JPOX would be more than welcome. Definitely, not a problem. When do you need it by? Whenever you feel like it. Where can I find the spec for the address book app? No spec, only code :) https://wicket-stuff.svn.sourceforge.net/svnroot/wicket-stuff/trunk/wicket-phonebook It's phonebook, not addressbook btw. Sorry my wrong. :) Cheers, Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Wicket Acegi Integration.
There is no reason why Acegi should not be able to integrate with swarm as long as you just use it for authentication (like wicket-auth-roles does). In fact i think that by following the auth-roles tutorial and replacing the auth-roles components with there swarm counterpart you should be getting things up and running. That being said the swarm-acegi integration is untested, it is on my todo list but lack of time, the rest of my todo list and a complete void in knowledge about acegi have prevented me from doing it. If you would be willing to test this i would be very thankful. In the mean time if you have any questions about swarm, I'll be happy to answer them. Maurice On 8/23/07, Vincenzo Vitale [EMAIL PROTECTED] wrote: Thanks Erik, yes I also have seen something about Wicket and Swarm integration (http://wicketstuff.org/confluence/display/STUFFWIKI/Getting+started+with+Swarm) but Acegi is at the moment the most known technology in my department so at the moment I will use it, also because interested in showing how Wicket is well integrated with all the most important (and known) frameworks out there. Grazie, V. On 8/22/07, Erik van Oosten [EMAIL PROTECTED] wrote: Hi Vincenzo, Someone mentioned the project Swarm on the mailing list some time ago (http://www.nabble.com/forum/ViewPost.jtp?post=10853436framed=y). Since I do not know Swarm I can not advice on which way to go. Regards, Erik. Vincenzo Vitale wrote: Hi, In my project we are using Wicket and it definitively rocks!!! J Now I want to integrate authentication and authorization… I have red the wiki page in http://cwiki.apache.org/WICKET/acegi-and-wicket-auth-roles.html where the acegi-wicket integration is explained, but you also mention a new project currently in works… could you please give me more information about that or do you suggest at the moment to use wicket-auth-role and acegi? I'm using wicket 1.3.0-beta2 version. Thanks a lot, Vincenzo. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Erik van Oosten http://2008.rubyenrails.nl/ http://www.day-to-day-stuff.blogspot.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] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Wicket Acegi Integration.
Ok. Thanks for the clarification... I will let you know how we'll proceed. Ciao, V. On 8/23/07, Maurice Marrink [EMAIL PROTECTED] wrote: There is no reason why Acegi should not be able to integrate with swarm as long as you just use it for authentication (like wicket-auth-roles does). In fact i think that by following the auth-roles tutorial and replacing the auth-roles components with there swarm counterpart you should be getting things up and running. That being said the swarm-acegi integration is untested, it is on my todo list but lack of time, the rest of my todo list and a complete void in knowledge about acegi have prevented me from doing it. If you would be willing to test this i would be very thankful. In the mean time if you have any questions about swarm, I'll be happy to answer them. Maurice On 8/23/07, Vincenzo Vitale [EMAIL PROTECTED] wrote: Thanks Erik, yes I also have seen something about Wicket and Swarm integration (http://wicketstuff.org/confluence/display/STUFFWIKI/Getting+started+with+Swarm) but Acegi is at the moment the most known technology in my department so at the moment I will use it, also because interested in showing how Wicket is well integrated with all the most important (and known) frameworks out there. Grazie, V. On 8/22/07, Erik van Oosten [EMAIL PROTECTED] wrote: Hi Vincenzo, Someone mentioned the project Swarm on the mailing list some time ago (http://www.nabble.com/forum/ViewPost.jtp?post=10853436framed=y). Since I do not know Swarm I can not advice on which way to go. Regards, Erik. Vincenzo Vitale wrote: Hi, In my project we are using Wicket and it definitively rocks!!! J Now I want to integrate authentication and authorization… I have red the wiki page in http://cwiki.apache.org/WICKET/acegi-and-wicket-auth-roles.html where the acegi-wicket integration is explained, but you also mention a new project currently in works… could you please give me more information about that or do you suggest at the moment to use wicket-auth-role and acegi? I'm using wicket 1.3.0-beta2 version. Thanks a lot, Vincenzo. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Erik van Oosten http://2008.rubyenrails.nl/ http://www.day-to-day-stuff.blogspot.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] - 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: {wicket 1.3 beta 2} AjaxFormComponentUpdatingBehavior broken?
Hello Nino,
It seems to be the same issue as i've encountered a week ago.
see thread Order-Items master detail page started at 16 august
Possible Solution in you case:
declare anywhere posible in page
private Phone selectedItem;
in function
protected void onUpdate(AjaxRequestTarget target) {
...
selectedItem = (Phone) phoneA.getObject();
...
}
And than everythingService.findAllStandardFeatures() (or other function) shoud
get access to the
field selectedItem.
Possible you need to create your own new IDataProvider.
Cheers,
Oleg.
am 23 August 2007 um 09:08 schrieben Sie:
Hi
I have a page where theres two dropdownchoices and two panels
acordingly. when you click dropdown a and select a new item panel a
should be updated to the new item, I've used
ajaxformComponentupdatingbehavior( have also tried
ajaxformsubmittingbehavior).
However it seems as the model of the dropdown are never updated, im
using compoundpropertymodel (have also tried reverting and just using a
simple model).
I just cant figure out whats wrong. Please take a look any hints will be
appreciated
http://papernapkin.org/pastebin/view/1386
Havent had the chance yet to tryout beta 3, not sure if its gone there.
regards Nino
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--
Mit freundlichen Grüßen
Oleg Taranenko
mailto:[EMAIL PROTECTED]
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Re: {wicket 1.3 beta 2} AjaxFormComponentUpdatingBehavior broken?
Hmm, im not using the dataview or iDataprovider, although I have a
listview in one of the singlephonecomparepanels. However it seems as
theres something about these two issues that match.
But the wierd thing are that it never ever picks up the change in the
dropdownchoice. I'll try going back and doing this without ajax and see
if that works any better.
I've tried your suggestion about declaring phone as a private on the
page it did not fix the problem..
Wierd stuff are that I used the same approach in wicket 1.2.6 and it was
working there(although not with the same combination of models)..
regards Nino
Oleg Taranenko wrote:
Hello Nino,
It seems to be the same issue as i've encountered a week ago.
see thread Order-Items master detail page started at 16 august
Possible Solution in you case:
declare anywhere posible in page
private Phone selectedItem;
in function
protected void onUpdate(AjaxRequestTarget target) {
...
selectedItem = (Phone) phoneA.getObject();
...
}
And than everythingService.findAllStandardFeatures() (or other function) shoud
get access to the
field selectedItem.
Possible you need to create your own new IDataProvider.
Cheers,
Oleg.
am 23 August 2007 um 09:08 schrieben Sie:
Hi
I have a page where theres two dropdownchoices and two panels
acordingly. when you click dropdown a and select a new item panel a
should be updated to the new item, I've used
ajaxformComponentupdatingbehavior( have also tried
ajaxformsubmittingbehavior).
However it seems as the model of the dropdown are never updated, im
using compoundpropertymodel (have also tried reverting and just using a
simple model).
I just cant figure out whats wrong. Please take a look any hints will be
appreciated
http://papernapkin.org/pastebin/view/1386
Havent had the chance yet to tryout beta 3, not sure if its gone there.
regards Nino
-
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For additional commands, e-mail: [EMAIL PROTECTED]
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Re: {wicket 1.3 beta 2} AjaxFormComponentUpdatingBehavior broken?
Thats wierd.
I've now changed it to not use ajax and are using
wantonselectionchangednotifications..
This yields the same result, not working. This is really wierd cant
belive that it should not work, some of the processing must be broken by
some of the other components I add, are there any way to get some more
describtive informations from wicket?
http://papernapkin.org/pastebin/view/1389
Nino Saturnino Martinez Vazquez Wael wrote:
Hmm, im not using the dataview or iDataprovider, although I have a
listview in one of the singlephonecomparepanels. However it seems as
theres something about these two issues that match.
But the wierd thing are that it never ever picks up the change in the
dropdownchoice. I'll try going back and doing this without ajax and
see if that works any better.
I've tried your suggestion about declaring phone as a private on the
page it did not fix the problem..
Wierd stuff are that I used the same approach in wicket 1.2.6 and it
was working there(although not with the same combination of models)..
regards Nino
Oleg Taranenko wrote:
Hello Nino,
It seems to be the same issue as i've encountered a week ago.
see thread Order-Items master detail page started at 16 august
Possible Solution in you case:
declare anywhere posible in page
private Phone selectedItem;
in function
protected void onUpdate(AjaxRequestTarget target) {
...
selectedItem = (Phone) phoneA.getObject();
...
}
And than everythingService.findAllStandardFeatures() (or other
function) shoud get access to the
field selectedItem.
Possible you need to create your own new IDataProvider.
Cheers,
Oleg.
am 23 August 2007 um 09:08 schrieben Sie:
Hi
I have a page where theres two dropdownchoices and two panels
acordingly. when you click dropdown a and select a new item panel a
should be updated to the new item, I've used
ajaxformComponentupdatingbehavior( have also tried
ajaxformsubmittingbehavior).
However it seems as the model of the dropdown are never updated, im
using compoundpropertymodel (have also tried reverting and just using a
simple model).
I just cant figure out whats wrong. Please take a look any hints
will be
appreciated
http://papernapkin.org/pastebin/view/1386
Havent had the chance yet to tryout beta 3, not sure if its gone there.
regards Nino
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Re: {wicket 1.3 beta 2} AjaxFormComponentUpdatingBehavior broken?
Ok, i've removed all other stuff from the page, error are still there,
wierd thing is that the dropdowns are working on the other pages.
I guess next step are to create a quickstart and see if it works there..
Should I try with beta 3 or?
regards Nino
Nino Saturnino Martinez Vazquez Wael wrote:
Thats wierd.
I've now changed it to not use ajax and are using
wantonselectionchangednotifications..
This yields the same result, not working. This is really wierd cant
belive that it should not work, some of the processing must be broken
by some of the other components I add, are there any way to get some
more describtive informations from wicket?
http://papernapkin.org/pastebin/view/1389
Nino Saturnino Martinez Vazquez Wael wrote:
Hmm, im not using the dataview or iDataprovider, although I have a
listview in one of the singlephonecomparepanels. However it seems as
theres something about these two issues that match.
But the wierd thing are that it never ever picks up the change in the
dropdownchoice. I'll try going back and doing this without ajax and
see if that works any better.
I've tried your suggestion about declaring phone as a private on the
page it did not fix the problem..
Wierd stuff are that I used the same approach in wicket 1.2.6 and it
was working there(although not with the same combination of models)..
regards Nino
Oleg Taranenko wrote:
Hello Nino,
It seems to be the same issue as i've encountered a week ago.
see thread Order-Items master detail page started at 16 august
Possible Solution in you case:
declare anywhere posible in page
private Phone selectedItem;
in function
protected void onUpdate(AjaxRequestTarget target) {
...
selectedItem = (Phone) phoneA.getObject();
...
}
And than everythingService.findAllStandardFeatures() (or other
function) shoud get access to the
field selectedItem.
Possible you need to create your own new IDataProvider.
Cheers,
Oleg.
am 23 August 2007 um 09:08 schrieben Sie:
Hi
I have a page where theres two dropdownchoices and two panels
acordingly. when you click dropdown a and select a new item panel a
should be updated to the new item, I've used
ajaxformComponentupdatingbehavior( have also tried
ajaxformsubmittingbehavior).
However it seems as the model of the dropdown are never updated, im
using compoundpropertymodel (have also tried reverting and just
using a
simple model).
I just cant figure out whats wrong. Please take a look any hints
will be
appreciated
http://papernapkin.org/pastebin/view/1386
Havent had the chance yet to tryout beta 3, not sure if its gone
there.
regards Nino
-
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PageStore listener...
Hi, is there a way to add a listener to PageStore events (storePage/getPage)? I'm still looking for a clean way to re-inject Pages/Components when they are deserialized. This way I could just set some fields transient and have them injected again if necessary. I gave IComponentOnBeforeRenderListener a look as a hook to do this, but that is called _after_ Components onBeforeRender(), so it's not usable for that. Regards, --- Jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
Why can't you just implement read/writeObject on your page/component? -Matej On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote: Hi, is there a way to add a listener to PageStore events (storePage/getPage)? I'm still looking for a clean way to re-inject Pages/Components when they are deserialized. This way I could just set some fields transient and have them injected again if necessary. I gave IComponentOnBeforeRenderListener a look as a hook to do this, but that is called _after_ Components onBeforeRender(), so it's not usable for that. Regards, --- Jan. - 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: PageStore listener...
Or make the fields itself not transient, but a proxy that has a transient field and the proxy can deserialize and inject itself again (see wicket-ioc project) johan On 8/23/07, Matej Knopp [EMAIL PROTECTED] wrote: Why can't you just implement read/writeObject on your page/component? -Matej On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote: Hi, is there a way to add a listener to PageStore events (storePage/getPage)? I'm still looking for a clean way to re-inject Pages/Components when they are deserialized. This way I could just set some fields transient and have them injected again if necessary. I gave IComponentOnBeforeRenderListener a look as a hook to do this, but that is called _after_ Components onBeforeRender(), so it's not usable for that. Regards, --- Jan. - 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: wicket vs tapestry ? (Back Button Detection-Support)
Possible starting point for a client solution for back button detection/support: http://www.onjava.com/pub/a/onjava/2005/10/26/ajax-handling-bookmarks-and-back-button.html?page=1 -Original Message- From: Matej Knopp [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 22, 2007 6:30 PM To: users@wicket.apache.org Subject: Re: wicket vs tapestry ? Hi, 2) I like the back button support. My thinking is that extending Wicket's AJAX integration to also support the back button (somehow) is a must. Virtually everyone who uses Wicket will use it's AJAX functionality. Almost all of these will need solve this problem. Sure would be nice if it was included. There are plans to do this. However, it's a complicate problem that a simple solution won't cut. We have a server side part in place though. It's the javascript that needs to be extended, but our resources are too limited currently to do that. 3) The design-by-inheritance model (WebPage, AbstractBehavior, etc). has produced a somewhat fragmented library. Reminds me of the days of MFC. T5's approach in this respect seems quite attractive. Would you mind elaborating on this a little? I kind of fail to see what's wrong with inheritance and why are people avoiding it like a plague nowadays. Is it really that much better to have your code annotated and called by reflection/bytecode generation? How discoverable such API is? How can you navigate such code? (forget call hierarchy). As a sidenote, I remember Igor building @OnBeforeRender like annotations, but he wasn't very happy with it and neither was I. -Matej Thanks for listening, Erik On 8/22/07, Konstantin Ignatyev [EMAIL PROTECTED] wrote: My story: I have been very satisfied Tapestry 3 used and T3 has helped tremendously with building applications in the past. Then I was busy doing other things although keeping eye on T and recently I needed to build a live prototype quickly, naturally my first reaction was to pick up Dreamweaver and try Tapestry 5. T5 is amazingly good BUT I needed Ajax support and at this moment Wicket makes leaps and bounds around T5 in this area. So I abandoned T5 and started using Wicket - so far I am very satisfied with it although worry if Wicket is production grade for high traffic sites because of its heavy use of HttpSession as storage. So for now I will use Wicket for prototyping and small apps and keep my eye on T5. T4 is no-go for me - I am too lazy --- Chris Chiappone [EMAIL PROTECTED] wrote: A colleague of mine and I had a discussion about this because he was sorting through new frameworks to use for a new project. I have been using Tapestry since v3 and wanted him to give it a try. Unfotunately he ended up picking Wicket because of the fear that Tapestry has issues with backward compatibility. I am now wondering if I made the right choice in choosing tapestry for my applications. He built his application quickly and it is impressive using Wickets built in AJAX components. Upgrading in Tapestry has been a pain going from 3 - 4 and obviously 5 isn't even possible. I wish I could have choose tap 5 for my latest project but it was too beta and doesn't play well with other frameworks, ie a large legacy app with a Struts like framework. Anyway its a hard decision, they both have plus' and minus' ~chris On 8/22/07, John [EMAIL PROTECTED] wrote: Hi Alex, I would say Tapestry 5 wins the challenge unless you plane to use T4. Tapestry 5 uses annotations, and this is a very important advanced feature in Java. You don't need to extend WOComponent, WebPage or what ever. I think all frameworks will use the annotations in the future; the question is when is available. T5 does and it's ready. In other words, the real question you should ask Do I want to use annotations or classical framework? Try T5 a little, and you will fast mention the power of annotations. Signature IT-Consult Armainak Sarkis - Original Message - From: Alex Shneyderman [EMAIL PROTECTED] To: [EMAIL PROTECTED]; users@wicket.apache.org Sent: Wednesday, August 22, 2007 10:13 AM Subject: wicket vs tapestry ? I just started to look for a component based framework. I came across both tapestry and wicket (and it would be hard not to as you guys share the same host) but I kind of fail to see what the differences are? From my limited experiments with both, wicket and tapestry seem to be quite similar. So, I wonder if there is anything I am not seeing? Anyone has a comparisson map of wicket vs tapestry? Alex. PS: I like both frameworks for their lightness I just feel that I will need to stick
Re: PageStore listener...
hi matej, hi johan, Why can't you just implement read/writeObject on your page/component? that would be an effort... here a listview, there a link and over there another image... that way i loose all the benefits of using injection - i build new logic in the components which i just wanted to get rid of. Or make the fields itself not transient, but a proxy that has a transient field and the proxy can deserialize and inject itself again (see wicket-ioc project) possible, but that reminds me on the 'XYService.getInstance()' usage in the times before IoC. it adds another indirection which makes should-be-easy things more complex. instead of being able to just inject the right class instances, i have to use proxies (so being on the save side when changing classes/implementations break serialization). there's the onComponentInstantiationListener() - easy to use and powerful. if there would be some listener being called before any other component logic is being performed that would be great. it would be enough to call this once during a request-cycle to minimize the overhead. btw, why is the OnBeforeRenderListener called after and not before OnBeforeRender() of the component? regards, --- jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Layout Panel
Umh .. I think the best things are simple .. Why don't just handle the components position using html or css in your panel? Bye, Paolo On 8/23/07, andrea pantaleoni [EMAIL PROTECTED] wrote: Hi, I have a little problem with Panel In a table I added a Panel Now in this Panel I want to add two different components, let's say, a dropdownchoice up and a textfield down. If I remember well, in swing it could be possible to add a layout to a panel and then for example add a component in north or in the south. Is there in wicket something similar? If I want to add the dropdownchoice component in the north of the panel and the textfield in the south is that possible Thanks for any help Andrea -- View this message in context: http://www.nabble.com/Layout-Panel-tf4317423.html#a12293248 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Layout Panel
What about html xmlns=http://www.w3.org/1999/xhtml; xmlns:wicket=http://wicket.sourceforge.net/; wicket:panel table cellpadding=2 cellspacing=2 tr td bMyDropDown:/b /td td select wicket:id=MyDropDown/select /td /tr tr td bMyTextField:/b /td td input wicket:id=MyTextField/ /td /tr /table /wicket:panel /html On wicket you have the flexibility to design yourself the markup (as in plain old HTML...) Ernesto andrea pantaleoni wrote: Hi, I have a little problem with Panel In a table I added a Panel Now in this Panel I want to add two different components, let's say, a dropdownchoice up and a textfield down. If I remember well, in swing it could be possible to add a layout to a panel and then for example add a component in north or in the south. Is there in wicket something similar? If I want to add the dropdownchoice component in the north of the panel and the textfield in the south is that possible Thanks for any help Andrea - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: No get method defined for expression recorder when using Palette and CompoundPropertyModel
On Fri, 6 Jul 2007 08:48:56 -0700 Igor Vaynberg [EMAIL PROTECTED] wrote: Thanks for the tip but I absolutly need a compoundPropertyModel. https://issues.apache.org/jira/browse/WICKET-723 I had the same issue, thanks! Now I'm using beta3.. Another question though: I see that Recorder.initIds() assumes that getPalette().getModelCollection() is never null.. Is this by design? Should I check my backing bean for null collections before passing it to the CompoundPropertyModel? (Or maybe I could override CompoundPropertyModel.AttachedCompoundPropertyModel.getObject() so that it creates the empty collection when needed.. X-) ) Many thanks in advance! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Layout Panel
I'm still thinking that's a pure html problem, Try with a table like this: table height=100% tr td valign=top wicketcomponentup /td td valign=bottom wicketcomponentdown /td /tr /table Paolo On 8/23/07, andrea pantaleoni [EMAIL PROTECTED] wrote: the reason is that I need to consider the panel as a single component which is used inside a listview Anyway you could be right I saw that in wicket you can create a html markup for each single component naming the file in this way: pagename$componentname.html So maybe I can add the drodownchoice and textfield to the panel component and fix the layout in the html file pagename$panelname.html table tr tdwicketcomponentup td tdwicketcomponentdown td /tr /table What do you think about? could that work? Thanks Paolo paolo di tommaso wrote: Umh .. I think the best things are simple .. Why don't just handle the components position using html or css in your panel? Bye, Paolo On 8/23/07, andrea pantaleoni [EMAIL PROTECTED] wrote: Hi, I have a little problem with Panel In a table I added a Panel Now in this Panel I want to add two different components, let's say, a dropdownchoice up and a textfield down. If I remember well, in swing it could be possible to add a layout to a panel and then for example add a component in north or in the south. Is there in wicket something similar? If I want to add the dropdownchoice component in the north of the panel and the textfield in the south is that possible Thanks for any help Andrea -- View this message in context: http://www.nabble.com/Layout-Panel-tf4317423.html#a12293248 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Layout-Panel-tf4317423.html#a12293520 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Constructor of Component not DRY?
Hi,
doing a little code reading and trying to understand what I read, I came
across org.apache.wicket.Component 's constructors.
To my eyes the two constructors look very much alike and I wonder why
they were not chained like this:
public Component(final String id)
{
this(id, null);
}
Which chapter in the Java schoolbook should I reread?
Martin
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Re: Constructor of Component not DRY?
i think that is grown this way, previously the model constructor did some
more i believe
Also i don't like this(id,null) because thats just horrible, If you call the
constructor with the model then the model shouldn't be null.
a nicer way could be
public Component(final String id, IModel model)
{
this(id);
this.model = wrapModel(model);
}
johan
On 8/23/07, Martin Funk [EMAIL PROTECTED] wrote:
Hi,
doing a little code reading and trying to understand what I read, I came
across org.apache.wicket.Component 's constructors.
To my eyes the two constructors look very much alike and I wonder why
they were not chained like this:
public Component(final String id)
{
this(id, null);
}
Which chapter in the Java schoolbook should I reread?
Martin
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Re: Question regarding old post (ResultSet and DataTable)
Hi !!!
Thanks for your reply, this solution is simple, easy to understand and
is not hard to code at all. My only objection would be the MyBean class, if
I understood it right, the DataProvider is tied to the bean in a way that
makes it not reusable:
String query = SELECT name, age FROM mybean LIMIT + start + , +
count;
bean.setName(set.getString(name));
bean.setAge(set.getInt(age));
What I mean is, what happens if I want to query another table, do I have
to change the ResultSetDataProvider implementation, or provide another
implementation for each table ??
I'm not sure if is it even possible to do what I want, surely it would
be more complex and hard to do, but if it saves from creating custom code
for each query, I guess it would justify the extra work.
In most web usages, this implementation is ok because you don't have
that much database queries, but at my work we have been asked to port a
desktop application to a web implementation, and it uses lots of queries
with flexible filtering criteria, for example (Visual Basic pseudocode):
recordset1 = ExecuteQuery(SELECT a, b, c FROM table1);
datagrid1.setColumns(a, b, c);
datagrid1.setRecordSet(recordset1);
datagrid1.refresh();
Perhaps this simplified Visual Basic example shows what I'm trying to
do, as you can see, I don't have to cast the recordset to any specific bean
type, it's just a bunch of cells. That's why I'm looking for that kind of
more abstract approach.
Thanks for your help !!!
Daniel
Ayodeji Aladejebi wrote:
create table mybean (id int primary key, name varchar, age int) bla bla
bla
//make a model
class MyBean implements Serializable {
private String name;
private int age;
}
//create your idataprovider
-
//i would not know if there is some other more efficient manner but this
is
as simple enough
// and it works with DataView, Paging, DataTable
this should not be too hard, is it? or you need something else
On 8/23/07, dtoffe [EMAIL PROTECTED] wrote:
Uhh, well... yes, you are right.
Excuse me but I fail to see how that could help to solve the problem
I
presented, please keep in mind that I'm not native english speaker and
perhaps I'm not using the proper words, I'll try to explain that more
precisely.
-
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Re: POJO Adapter in Wicket
i would use the pojos directly and put the presentation stuff into the model -igor On 8/23/07, Vincenzo Vitale [EMAIL PROTECTED] wrote: Hi All, I'm using Wicket (1.3.0 beta2), Hibernate and Spring. In my Wicket project for each POJO of my business model I created an Adapter maintaining the original object and having methods for the presentation layer (like getCompleteName()); I have not created a delegate getter or setter for all the properties of the target so in my wicket java code I simply bind the target properties with a name I choose. For example: final ApiAccountAdapter account = (ApiAccountAdapter) model.getObject(); BoundCompoundPropertyModel accountModel = new BoundCompoundPropertyModel(account); TextField contactNameField = new TextField(contactName); accountModel.bind(contactNameField, target.contactName); I use cascades with Hibernate to create/update my objects so the unique problems with the adapters approach is that I always want to use Adapters in the presentation projects and I always want to navigate my objects starting from the main object I'm using. So for example if I'm editing a parent object with a child list, in Wicket I need to create a ParentAdapter with a method like ListChildAdapter getChildsList(); returning the List of adapters and I need to manually construct this method. If a child has also relations with other objects (directly or worst into Collections) the problem became rapidly really complex. Have you some suggestion on how to face in a better way the problem? My main requirements are: - I don't want to modify the POJOs adding presentation getters. - I want to use the dot notation in Wicket to easily access what I need: directly the pojo properties or some adapter (or whatever) with more complex getters. - When I have an input field in a page, representing a simple property in the main object or in some child object (like a property of a specific element of the child list) I don't want to manually map this field with the property of the object I want to be persisted. This work fine using adapters and mapping always an input field with target.property or a list with target.getListAdapter and then mapping the input fields in the list also with target.property. Sorry if I'm confusing you... :-) Thanks, Vicio. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Component Factory and code against interface
not really sure what you mean when you say marking components as dirty... have you seen ajaxfallback* components? those will use ajax when its there, and fallback on regular requests when its not. so you dont even need a factory necessarily. -igor On 8/23/07, Sam Hough [EMAIL PROTECTED] wrote: Thanks Igor, Because we have to support Ajax and non-Ajax version I was wondering about hiding details of making components Ajax friendly in the factory. so setOutputMarkupId(true) etc and hiding Ajax specific handlers where possible. Have you seen anybody automatically marking components as dirty so they can be sent back via Ajax (Echo like)? I think that would handle 90% of our Ajax like stuff. Cheers Sam -- View this message in context: http://www.nabble.com/Component-Factory-and-code-against-interface-tf4311047.html#a12290179 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote:
hi matej, hi johan,
Why can't you just implement read/writeObject on your page/component?
that would be an effort... here a listview, there a link and over there
another
image...
that way i loose all the benefits of using injection - i build new logic
in the
components which i just wanted to get rid of.
Or make the fields itself not transient, but a proxy that has a
transient
field and the proxy can deserialize and inject itself again (see
wicket-ioc
project)
possible, but that reminds me on the 'XYService.getInstance()' usage in
the
times before IoC. it adds another indirection which makes should-be-easy
things
more complex. instead of being able to just inject the right class
instances, i
have to use proxies (so being on the save side when changing
classes/implementations break serialization).
really, so this is too complicated?
public mypanel extends panel {
@SpringBean private Service service;
...
}
-igor
regards, --- jan.
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Re: No get method defined for expression recorder when using Palette and CompoundPropertyModel
i dont know if it is by design or not. it makes sense to me that you pass in a model with at least an empty collection, otherwise palette has to create an instance of some collection which isnt as clean. -igor On 8/23/07, Federico Fanton [EMAIL PROTECTED] wrote: On Fri, 6 Jul 2007 08:48:56 -0700 Igor Vaynberg [EMAIL PROTECTED] wrote: Thanks for the tip but I absolutly need a compoundPropertyModel. https://issues.apache.org/jira/browse/WICKET-723 I had the same issue, thanks! Now I'm using beta3.. Another question though: I see that Recorder.initIds() assumes that getPalette().getModelCollection() is never null.. Is this by design? Should I check my backing bean for null collections before passing it to the CompoundPropertyModel? (Or maybe I could override CompoundPropertyModel.AttachedCompoundPropertyModel.getObject() so that it creates the empty collection when needed.. X-) ) Many thanks in advance! - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Bypass form validation
Juan Gabriel Arias wrote: Hi, i have a form, that is submited by different AjaxSubmitLinks. I want that only one (completely identified) of those links triggers a validation. I though two main solutions: - Add validation only to specific components, not to the complete form. (i think is the cleanest, but dunno if it si possible, because nature of forms and HTML) - Specify that, in some cases, validation should be ignored. Any ideas? Igor? =P Try using Button.setDefaultProcessing(false) -- Andrew Klochkov - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Layout Panel
only pages/panels/borders have associated markup files by default. -igor On 8/23/07, andrea pantaleoni [EMAIL PROTECTED] wrote: the reason is that I need to consider the panel as a single component which is used inside a listview Anyway you could be right I saw that in wicket you can create a html markup for each single component naming the file in this way: pagename$componentname.html So maybe I can add the drodownchoice and textfield to the panel component and fix the layout in the html file pagename$panelname.html table tr tdwicketcomponentup td tdwicketcomponentdown td /tr /table What do you think about? could that work? Thanks Paolo paolo di tommaso wrote: Umh .. I think the best things are simple .. Why don't just handle the components position using html or css in your panel? Bye, Paolo On 8/23/07, andrea pantaleoni [EMAIL PROTECTED] wrote: Hi, I have a little problem with Panel In a table I added a Panel Now in this Panel I want to add two different components, let's say, a dropdownchoice up and a textfield down. If I remember well, in swing it could be possible to add a layout to a panel and then for example add a component in north or in the south. Is there in wicket something similar? If I want to add the dropdownchoice component in the north of the panel and the textfield in the south is that possible Thanks for any help Andrea -- View this message in context: http://www.nabble.com/Layout-Panel-tf4317423.html#a12293248 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Layout-Panel-tf4317423.html#a12293520 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Component Factory and code against interface
Say my onSubmit handler changes three components, as I understand it, I have to hand code feeding those three components to the AjaxRequestTarget. This seems cumbersome and slightly error prone. I think for our application, if the components kept track of changes, I could automate which components are sent back. Guess what I'm asking is if anything that already exists in Wicket keeps track of component changes? Can't imagine it would be easy otherwise without really heavy duty AOP etc... Thanks again Igor. igor.vaynberg wrote: not really sure what you mean when you say marking components as dirty... have you seen ajaxfallback* components? those will use ajax when its there, and fallback on regular requests when its not. so you dont even need a factory necessarily. -igor On 8/23/07, Sam Hough [EMAIL PROTECTED] wrote: Thanks Igor, Because we have to support Ajax and non-Ajax version I was wondering about hiding details of making components Ajax friendly in the factory. so setOutputMarkupId(true) etc and hiding Ajax specific handlers where possible. Have you seen anybody automatically marking components as dirty so they can be sent back via Ajax (Echo like)? I think that would handle 90% of our Ajax like stuff. Cheers Sam -- View this message in context: http://www.nabble.com/Component-Factory-and-code-against-interface-tf4311047.html#a12290179 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/Component-Factory-and-code-against-interface-tf4311047.html#a12296693 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: DownloadLink hanging
Should I report a bug in JIRA?
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
hm, this looks like an old bug. johan didnt we fix this a while ago?
-igor
On 8/23/07, Thomas Singer [EMAIL PROTECTED] wrote:
inside shared
resource you can simply call Session.get() to get to wicket session.
Unfortunately, it looks like this is not possible, because I'm getting
following exception:
java.lang.IllegalStateException: you can only locate or create sessions
in the context of a request cycle
org.apache.wicket.Session.findOrCreate(Session.java:250)
org.apache.wicket.Session.get(Session.java:279)
com.syntevo.hpsmart.DownloadResource.getResourceStream(
DownloadResource.java:18)
org.apache.wicket.protocol.http.WicketFilter.getLastModified(
WicketFilter.java:708)
org.apache.wicket.protocol.http.WicketFilter.doFilter(
WicketFilter.java:122)
Our resource code looks like this:
final class DownloadResource extends Resource {
public IResourceStream getResourceStream() {
final OurSession session = (OurSession)Session.get();
if (session == null) {
return null;
}
final File file = session.getFileToDownload();
if (file == null) {
return null;
}
return new MyFileResourceStream(file);
}
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
you can register a shared resource and build a url for it. inside shared
resource you can simply call Session.get() to get to wicket session.
see application.getsharedresources();
alternatively you can extend WicketSessionFilter which will also allow
you
to perform Session.get()
-igor
On 8/21/07, Thomas Singer [EMAIL PROTECTED] wrote:
Disclaimer: I'm not experienced with filters or wicket resources.
Is it possible to create a (shared) wicket resource which can be
filtered,
so it only is accessible when the right flag is set in OurWebSession?
Or would you suggest to write an own javax.servlet.Filter which does
this
flag-check and redirects internally to a hidden location which then is
send
to the client by Tomcat when the right flag is set?
Thanks in advance.
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
On 8/21/07, Thomas Singer [EMAIL PROTECTED] wrote:
Hi Igor,
yep, DownloadLinks will block because requests to the same page are
serialized.
Sorry, I don't understand, why links to downloadable resources should
be
blocking or serialized. Usually downloads are the larger parts of an
application and hence should never lock the application.
because this is how this component is designed to work. if you dont
like
it
you can build your own that doesnt block.
to work around it register a shared resource or create a servlet that
can
stream the file (resoureces in wicket are not serialized), then
create
a
link component that can build a download url.
Well, I guess, we can't use a servlet, because wicket is registered
to
/*, so it will get everything.
wicket is a filter, so even though it is mapped to /* it will let urls
that
are not wicket urls pass through. how do you think it lets you
download
static images...
so if you map your wicket filter on /* and the servlet on /download
and
yo
have no download mount in wicket the filter will let /download/*
requests
go to the servlet.
-igor
Could you please give some more hints
about shared resources? I've tried to search
http://cwiki.apache.org/WICKET/ without luck.
Alternatively, is it possible to complete shut off the serialization
(which seems to cause this and maybe even other blocking problems)?
--
Best regards
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
Igor Vaynberg wrote:
yep, DownloadLinks will block because requests to the same page are
serialized.
to work around it register a shared resource or create a servlet
that
can
stream the file (resoureces in wicket are not serialized), then
create
a
link component that can build a download url.
-igor
On 8/20/07, Thomas Singer [EMAIL PROTECTED] wrote:
Hi,
We are using Wicket 1.3 beta 2 running in Tomcat and have a couple
of
DownloadLinks on a page (created with 'new
DownloadPage(parameters)')
for
larger files (a couple of MB). I open different tabs of the same
page
in
Opera and click these download links, so the downloads should
happen
in
parallel. Unfortunately, the web-application seems to hang until
the
previous files were completely downloaded. Even normal pages do not
show
up.
This does not happen for other websites (so our internet connection
couldn't
be the reason) and not for the same project with
old-JSP-/Servlet-technology
at a different server running in the same version of Tomcat.
Is this a known problem? How to work around?
--
Best regards,
Re: wicket vs tapestry ? (Back Button Detection-Support)
On 8/23/07, William Hoover [EMAIL PROTECTED] wrote: Possible starting point for a client solution for back button detection/support: http://www.onjava.com/pub/a/onjava/2005/10/26/ajax-handling-bookmarks-and-back-button.html?page=1 Thanks for suggesting. We have discussed that and other articles a bunch of times already though. The problem we're having is not so much that we don't know how ajax back button support could work in the basics, but how it could work together with Wicket's server side state. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Question regarding old post (ResultSet and DataTable)
Done, I've offered to write some example of use for the wiki or example page. Thanks !! Daniel igor.vaynberg wrote: perhaps you can email frank and ask him, it is unfortunate he did not post his code on a wiki page somewhere. http://www.nabble.com/displaying-java.sql.Timestamp-tf1333211.html#a3561689 -igor -- View this message in context: http://www.nabble.com/Question-regarding-old-post-%28ResultSet-and-DataTable%29-tf4314874.html#a12297009 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Component Factory and code against interface
On 8/23/07, Sam Hough [EMAIL PROTECTED] wrote:
Say my onSubmit handler changes three components, as I understand it, I
have
to hand code feeding those three components to the AjaxRequestTarget. This
seems cumbersome and slightly error prone. I think for our application, if
the components kept track of changes, I could automate which components
are
sent back. Guess what I'm asking is if anything that already exists in
Wicket keeps track of component changes? Can't imagine it would be easy
otherwise without really heavy duty AOP etc...
heh, there is nothing that automatically marks components as dirty() because
wicket doesnt know what you do inside your components. wicket is unmanaged.
but i dont really understand the issue. you have onclick(ajaxrequesttarget
t) { dosomething(); t.addcomponent() }
so in your case you mean inside dosomething() you do something to x
components, but you dont know which x components they are?
-igor
Thanks again Igor.
igor.vaynberg wrote:
not really sure what you mean when you say marking components as
dirty...
have you seen ajaxfallback* components? those will use ajax when its
there,
and fallback on regular requests when its not. so you dont even need a
factory necessarily.
-igor
On 8/23/07, Sam Hough [EMAIL PROTECTED] wrote:
Thanks Igor,
Because we have to support Ajax and non-Ajax version I was wondering
about
hiding details of making components Ajax friendly in the factory. so
setOutputMarkupId(true) etc and hiding Ajax specific handlers where
possible. Have you seen anybody automatically marking components as
dirty
so
they can be sent back via Ajax (Echo like)? I think that would handle
90%
of
our Ajax like stuff.
Cheers
Sam
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Re: DownloadLink hanging
yep
-igor
On 8/23/07, Thomas Singer [EMAIL PROTECTED] wrote:
Should I report a bug in JIRA?
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
hm, this looks like an old bug. johan didnt we fix this a while ago?
-igor
On 8/23/07, Thomas Singer [EMAIL PROTECTED] wrote:
inside shared
resource you can simply call Session.get() to get to wicket session.
Unfortunately, it looks like this is not possible, because I'm getting
following exception:
java.lang.IllegalStateException: you can only locate or create
sessions
in the context of a request cycle
org.apache.wicket.Session.findOrCreate(Session.java:250)
org.apache.wicket.Session.get(Session.java:279)
com.syntevo.hpsmart.DownloadResource.getResourceStream(
DownloadResource.java:18)
org.apache.wicket.protocol.http.WicketFilter.getLastModified(
WicketFilter.java:708)
org.apache.wicket.protocol.http.WicketFilter.doFilter(
WicketFilter.java:122)
Our resource code looks like this:
final class DownloadResource extends Resource {
public IResourceStream getResourceStream() {
final OurSession session = (OurSession)Session.get();
if (session == null) {
return null;
}
final File file = session.getFileToDownload();
if (file == null) {
return null;
}
return new MyFileResourceStream(file);
}
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
you can register a shared resource and build a url for it. inside
shared
resource you can simply call Session.get() to get to wicket session.
see application.getsharedresources();
alternatively you can extend WicketSessionFilter which will also allow
you
to perform Session.get()
-igor
On 8/21/07, Thomas Singer [EMAIL PROTECTED] wrote:
Disclaimer: I'm not experienced with filters or wicket resources.
Is it possible to create a (shared) wicket resource which can be
filtered,
so it only is accessible when the right flag is set in OurWebSession?
Or would you suggest to write an own javax.servlet.Filter which does
this
flag-check and redirects internally to a hidden location which then
is
send
to the client by Tomcat when the right flag is set?
Thanks in advance.
--
Best regards,
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
www.syntevo.com
Igor Vaynberg wrote:
On 8/21/07, Thomas Singer [EMAIL PROTECTED] wrote:
Hi Igor,
yep, DownloadLinks will block because requests to the same page
are
serialized.
Sorry, I don't understand, why links to downloadable resources
should
be
blocking or serialized. Usually downloads are the larger parts of
an
application and hence should never lock the application.
because this is how this component is designed to work. if you dont
like
it
you can build your own that doesnt block.
to work around it register a shared resource or create a servlet
that
can
stream the file (resoureces in wicket are not serialized), then
create
a
link component that can build a download url.
Well, I guess, we can't use a servlet, because wicket is registered
to
/*, so it will get everything.
wicket is a filter, so even though it is mapped to /* it will let
urls
that
are not wicket urls pass through. how do you think it lets you
download
static images...
so if you map your wicket filter on /* and the servlet on /download
and
yo
have no download mount in wicket the filter will let /download/*
requests
go to the servlet.
-igor
Could you please give some more hints
about shared resources? I've tried to search
http://cwiki.apache.org/WICKET/ without luck.
Alternatively, is it possible to complete shut off the
serialization
(which seems to cause this and maybe even other blocking problems)?
--
Best regards
Thomas Singer
_
SyntEvo GmbH
Brunnfeld 11
83404 Ainring
Germany
Igor Vaynberg wrote:
yep, DownloadLinks will block because requests to the same page
are
serialized.
to work around it register a shared resource or create a servlet
that
can
stream the file (resoureces in wicket are not serialized), then
create
a
link component that can build a download url.
-igor
On 8/20/07, Thomas Singer [EMAIL PROTECTED] wrote:
Hi,
We are using Wicket 1.3 beta 2 running in Tomcat and have a
couple
of
DownloadLinks on a page (created with 'new
DownloadPage(parameters)')
for
larger files (a couple of MB). I open different tabs of the same
page
in
Opera and click these download links, so the downloads should
happen
in
parallel. Unfortunately, the web-application seems to hang until
the
previous files were
Re: Can Panel replace itself ?
Eelco Hillenius wrote: do: TestPanel newOne = new TestPanel(TestPanel.this.getId(), another param); TestPanel.this.replaceWith(newOne); target.addComponent(newOne); I didn't know about replaceWith method. It works great! Thanks a lot!!! Artur -- View this message in context: http://www.nabble.com/Can-Panel-replace-itself---tf4318533.html#a12297058 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Can Panel replace itself ?
c.replacewith(a) is the same as c.getparent().replace(a) -igor On 8/23/07, Artur W. [EMAIL PROTECTED] wrote: Eelco Hillenius wrote: do: TestPanel newOne = new TestPanel(TestPanel.this.getId(), another param); TestPanel.this.replaceWith(newOne); target.addComponent(newOne); I didn't know about replaceWith method. It works great! Thanks a lot!!! Artur -- View this message in context: http://www.nabble.com/Can-Panel-replace-itself---tf4318533.html#a12297058 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PageStore listener...
hi igor,
public mypanel extends panel {
@SpringBean private Service service;
actually, if i use guice-injection
@Inject private ContentManager cm;
where ContentManager isn't serializable, i get tons of exceptions regarding 'not
serializable.
so, to me it seems that the proxy-stuff not always applies.
i wouldn't have asked if i hadn't had any trouble with this.
regards, --- jan.
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Re: PageStore listener...
are you using wicket-guice? or just the guice' raw injection?
-igor
On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote:
hi igor,
public mypanel extends panel {
@SpringBean private Service service;
actually, if i use guice-injection
@Inject private ContentManager cm;
where ContentManager isn't serializable, i get tons of exceptions
regarding 'not
serializable.
so, to me it seems that the proxy-stuff not always applies.
i wouldn't have asked if i hadn't had any trouble with this.
regards, --- jan.
-
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Re: Constructor of Component not DRY?
hmmm... that would go against my taste of chaining from the constructor with the least parameters to the constructor with the most parameters. I'd just tend to chose the constructor with the most complex signature as the default constructor, doing the 'real' construction part of the object construction and the others chained towards it, using default or null values. I think I would typically do that too, though there are no hard rules for this, so it doesn't matter much in the end. Chaining like that doesn't work for constructors who assume that if their form is used, the passed in arguments are not null. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RadioGroup and posted Values
hi, I'm trying to get the posted value of a RadioGroup (within a converter of a textfield), but i only get the posted string values, not the model values of the radio elements: RadioGroup rg = new RadioGroup( takedown ); add( rg ); rg.add( new Radio( takedownFalse, new Model( false ) ) ); rg.add( new Radio( takedownTrue, new Model( true ) ) ); after post, rg.getValue() should return something like true or false, but i only get 'radio6' or 'radio8' depending on which of both Radio is selected. rg.getInput() delivers the same, as does rg.getInputAsArray(). rg.getConvertedInput() gives a null. how can i access the current value?? regards, --- jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [newb] sorting, paging table
On 8/23/07, somethingRandom [EMAIL PROTECTED] wrote:
I am trying out wicket, coming from the action-based world, so please bear
with me.
I made a simple report (we have a backend using spring and hibernate in
place). It was very easy to take the ArrayList that hibernate returns to
me
and display that in a DataView using the ListDataProvider.
So I look into trying to add some sorting and paging and decide that the
AjaxFallbackDefaultDataTable looks like the ticket. But now it looks like
I
also need to write 3 or 4 new classesl,
which are what?
and write sort methods for each
property of my pojos. It's not really this difficult, is it?
What's the easiest way to take an arraylist of objects and display them in
a
sortable, pageable table?
class mydataprovider extends sortabledataprovider {
abstract List getList(String sortcol, boolean asc) { // implement this
yourself and return the properly sorted list }
imodel model(object o) { // implement yourself }
int size() { return getList(getSort().getProperty(),
getSort().isAsc()).size(); }
iterator iterator(int first, int count){ return
getList(getSort().getProperty(), getSort().isAsc()).sublist(first,
first+count); }
}
just one small class looks like to me
-igor
}
Thanks
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Re: Can Panel replace itself ?
does it do that in all browsers?
also call view.setreuseitems(true);
-igor
On 8/23/07, Artur W. [EMAIL PROTECTED] wrote:
igor.vaynberg wrote:
c.replacewith(a) is the same as c.getparent().replace(a)
I want to extend this example and replace the panel but inside the
ListView.
But I've found another problem.
I did like you wrote but the panel isn't replaced. The new panel is being
added at the top of the table.
Why?
The Page:
public class TestPage extends MyPage {
private static final Listlt;Stringgt; params = Arrays.asList(
new
String[] { one, two, three, four} );
public TestPage(PageParameters parameters) {
super(parameters);
ListView view = new ListView(list, params) {
protected void populateItem(ListItem item) {
String s = (String) item.getModelObject();
item.add(new TestPanel(panel, s));
}
};
add(view);
}
}
lt;wicket:extendgt;
lt;tablegt;
lt;tr wicket:id=listgt;
lt;span wicket:id=panelgt;[panel]lt;/spangt;
lt;/trgt;
lt;/tablegt;
lt;/wicket:extendgt;
The Panel:
public TestPanel(String id, String param) {
super(id);
setOutputMarkupId(true);
AjaxLink link = new AjaxLink(link) {
public void onClick(AjaxRequestTarget target) {
TestPanel newOne = new TestPanel(
TestPanel.this.getId(), another
param);
TestPanel.this.replaceWith(newOne);
target.addComponent(newOne);
}
};
link.add(new Label(label0, click));
add(link);
add(new Label(label1, param.toUpperCase()));
add(new Label(label2, param.toLowerCase()));
}
lt;wicket:panelgt;
lt;tdgt;lt;a href=# wicket:id=linkgt;lt;span
wicket:id=label0gt;[label0]lt;/spangt;lt;/agt;lt;/tdgt;
lt;tdgt;lt;span
wicket:id=label1gt;[label1]lt;/spangt;lt;/tdgt;
lt;tdgt;lt;span
wicket:id=label2gt;[label2]lt;/spangt;lt;/tdgt;
lt;/wicket:panelgt;
Artur
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Re: RadioGroup and posted Values
hmm, dont know why you would do this inside a converter of another component but you can get to it like this: rg.convert(); rg.getconvertervalue(); -igor On 8/23/07, Jan Kriesten [EMAIL PROTECTED] wrote: hi, I'm trying to get the posted value of a RadioGroup (within a converter of a textfield), but i only get the posted string values, not the model values of the radio elements: RadioGroup rg = new RadioGroup( takedown ); add( rg ); rg.add( new Radio( takedownFalse, new Model( false ) ) ); rg.add( new Radio( takedownTrue, new Model( true ) ) ); after post, rg.getValue() should return something like true or false, but i only get 'radio6' or 'radio8' depending on which of both Radio is selected. rg.getInput() delivers the same, as does rg.getInputAsArray(). rg.getConvertedInput() gives a null. how can i access the current value?? regards, --- jan. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Constructor of Component not DRY?
just add a private component init(String, IModel) which can assume null arguments do the null checks in the constructor and forward to that method -igor On 8/23/07, Eelco Hillenius [EMAIL PROTECTED] wrote: hmmm... that would go against my taste of chaining from the constructor with the least parameters to the constructor with the most parameters. I'd just tend to chose the constructor with the most complex signature as the default constructor, doing the 'real' construction part of the object construction and the others chained towards it, using default or null values. I think I would typically do that too, though there are no hard rules for this, so it doesn't matter much in the end. Chaining like that doesn't work for constructors who assume that if their form is used, the passed in arguments are not null. Eelco - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: [newb] sorting, paging table
igor.vaynberg wrote:
On 8/23/07, somethingRandom [EMAIL PROTECTED] wrote:
What's the easiest way to take an arraylist of objects and display them
in
a
sortable, pageable table?
class mydataprovider extends sortabledataprovider {
abstract List getList(String sortcol, boolean asc) { // implement this
yourself and return the properly sorted list }
imodel model(object o) { // implement yourself }
int size() { return getList(getSort().getProperty(),
getSort().isAsc()).size(); }
iterator iterator(int first, int count){ return
getList(getSort().getProperty(), getSort().isAsc()).sublist(first,
first+count); }
}
just one small class looks like to me
-igor
That is much more concise than any examples I've seen before.
Thank you very much.
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Re: creating RSS feeds with Wicket
I'm not sure how the wicketstuff licenses work with the apache core, but I've put up documentation on the wicketstuff WIKI and added a link to that from the main wicket wiki for now. On 8/23/07, Igor Vaynberg [EMAIL PROTECTED] wrote: why not replace the wiki project with a quickstart tutorial for this new project and a quick description. no point keeping stale info around. -igor On 8/23/07, Ryan Sonnek [EMAIL PROTECTED] wrote: http://www.jroller.com/wireframe/entry/wicket_and_rss_feeds Just wanted to post an announcement that there's a new wicket stuff project (wicketstuff-rome) to allow for creation of RSS (or Atom) feeds from within Wicket. I've been using it for the past several weeks and it's allowed me to integrate RSS feeds into my Wicket app *very* quickly. This new project is a definite step up from the existing wicket wiki article for Rss pages, but I'm not sure what to do about that info. Please let me know if anyone has suggestions or issues with the project. Now that it's on wicketstuff, feel free to tweak or add features! Ryan
Re: Question regarding old post (ResultSet and DataTable)
Hi Ayodeji ! I fully agree with you specially if you have few tables and adhere totally to ORM. But consider what happens when yo have to fill a DataTable with the result of three+ tables joined, with subselects, group by and dinamic where clauses... Would you consider correct to define one Bean-based DataProvider for each one of such resultsets ?? They are not domain entities, they are just rows !! I always had some problems with this side of ORM, sometimes you don't retrieve a list of entities, sometimes the result is more like a spreadsheet, and you don't have an easy way of dealing with that based on beans. What happens if you call a Stored Procedure and you just don't know how many columns are returned ?? This is the problem I would like to solve. Of course I want to do it the Wicket way, to be able to enjoy all the benefits already provided by the framework. I don't want to avoid IDataProvider, I just want to be less tied to the idea of retrieving beans from the database. This issue troubled me since the very first time I heard about ORM. Of course all your concepts regarding the size of the resultset etc. are completely valid and they must be dealt with. I'm sorry I haven't had time yet to explore the code you sent me, I'll see it over the weekend and post it again next week. Thanks for your help !! Daniel Ayodeji Aladejebi wrote: i think its proper to have a Dataprovider for each table. why i enjoy dataprovider in wicket is that it gives me this feeling that SELECT * FROM TABLE will not return 1 million records and crash my application, its gives you a simple way to fetch the data you want to display per time and you can create a many dataprovider as possible or even implement some internal session state logic to tell IDataprovider which table to fetch. its up to your implementation. you will also loose the flexibility you have with yur models if you avoid IDataProvider however actually i think i makes sense for someone to donate a robust JDBCDataProvider to wicket stuff because attempting to do this for criteria matter, you can only hope you are not dealing with complex data types -- View this message in context: http://www.nabble.com/Question-regarding-old-post-%28ResultSet-and-DataTable%29-tf4314874.html#a12306193 Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
