Re: Session IDs in Cookies
On Apr 27, 2009, at 5:12 PM, Chuck Hill wrote: On Apr 27, 2009, at 1:58 PM, Guido Neitzer wrote: That should be Cookies for everybody ... No, that is David Avendasora's line. :-P You beet me to it! You know I'd be happy to provide cookies for everybody and have a few cases of cookies shipped to WOWODC, but I'm guessing the hotel has a no outside food rule. And as much as I've tried (you know I have) I just can't find the right combination of cookies and beer so I don't think it would work for a pre-WOWODC party either. I'd still be happy to get a bunch shipped, if there's a point during WOWODC where we could easily distribute them. Dave On 27. Apr. 2009, at 13:03 , Mike Schrag wrote: cookies for everything ... On Apr 27, 2009, at 3:48 PM, Chuck Hill wrote: Cookies, unless I have a compelling reason to not use them. It has been years since I worked on an app that did not use cookies. On Apr 27, 2009, at 12:14 PM, John Huss wrote: So which do you guys typically use? John On Mon, Apr 27, 2009 at 1:43 PM, Chuck Hill ch...@global-village.net wrote: On Apr 27, 2009, at 11:39 AM, Mike Schrag wrote: Pros of Cookies 1) stateful DA urls are bookmarkable without junk in them 2) people love to send eachother URLs and nothing sucks worse than when they don't understand that it's a huge security risk to include your session id 3) You can navigate back and forth between your app and static pages and not lose your session Cons of Cookies 1) opening multiple windows on your app is a lot more annoying because they will share the same set of cookies (so you can't easily login as two different people in dev mode) 2) if you have any issues with host names (you probably have other problems if this is the case), you can lose your cookies if the host name changes on you On Apr 27, 2009, at 2:33 PM, Kieran Kelleher wrote: What are the benefits of using SessionIDs in cookies over WebObjects' default sessionID in URL strategy? -Kieran ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/mschrag%40mdimension.com This email sent to msch...@mdimension.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net -- Chuck Hill Senior Consultant / VP Development Come to WOWODC'09 in San Fran this June! http://www.wocommunity.org/wowodc09/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/johnthuss%40gmail.com This email sent to johnth...@gmail.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net -- Chuck Hill Senior Consultant / VP Development Come to WOWODC'09 in San Fran this June! http://www.wocommunity.org/wowodc09/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/mschrag%40mdimension.com This email sent to msch...@mdimension.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/guido.neitzer%40gmail.com This email sent to guido.neit...@gmail.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net -- Chuck Hill Senior Consultant / VP Development Come to WOWODC'09 in San Fran this June! http://www.wocommunity.org/wowodc09/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list
Re: [ANN] AjaxDatePicker and AjaxDefaultSubmitButton
On Mar 27, 2009, at 11:02 AM, Chuck Hill wrote: One other thing is when you reopen the AMD a second time (without doing a page refresh) the css will be lost. To fix it I adding the css in the appendToResponse of the AMD with ERXResponseRewriter, just like your note about putting the javascript in there. Now it looks like its working. I don't see this problem. Is this only after using the close link? If I close it using my controls, and open it again, it looks as it did the first time. First of all, thanks Chuck for wiring this up! I was able to reproduce this issue by using AjaxDatePicker in a form on an AjaxTabbedPanel. If the AjaxDatePicker is not on the initially selected tab, and is updated via Ajax (for example, an ajax form submit) the next time the calendar is activated it has lost its css. Not sure *why* this happens yet, but was able to work around it by using ERXResponseRewriter to add the calendar's css in the page component containing the AjaxTabbedPanel. tb ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Inverse Relationships
If I am using the EOGenerator files from WOLips is there not a way to
update a relationship without automatically updating the inverse
relationship? If I just call setProperty() then the inverse
relationship will get called. I had thought if I called
setPropertyRelationship() with
er.extensions.ERXEnterpriseObject.updateInverseRelationships=false I
would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship. For
example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from + setasideCode() +
to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value, setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is false
it still calls either addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this correct? If
so, is there a way to do this through the generated files?
Thanks,
Frank ___
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Re: Inverse Relationships
Hi Frank,
On Apr 28, 2009, at 10:12 AM, Mr. Frank Cobia wrote:
If I am using the EOGenerator files from WOLips is there not a way
to update a relationship without automatically updating the inverse
relationship? If I just call setProperty() then the inverse
relationship will get called.
I believe this will only update the inverse if you have the
er.extensions.ERXEnterpriseObject.updateInverseRelationships=true set.
Otherwise it should only call takeStoredValueForKey(aValue,
Property) and stop.
I had thought if I called setPropertyRelationship() with
er.extensions.ERXEnterpriseObject.updateInverseRelationships=false I
would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship.
You have it backwards. The setPropertyRelationship() _explicitly_ sets
the inverse, and the updateInverseRelationship will have no effect on
it.
So, in short, if you want to have control over setting one side only
of a relationship, use either of the following _Without_ the
updateInverseRelationship=true:
takeStoredValueForKey(aValue, Key);
or
setProperty(aValue);
Dave
For example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from + setasideCode()
+ to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value, setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is
false it still calls either
addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this correct?
If so, is there a way to do this through the generated files?
Thanks,
Frank
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Re: Inverse Relationships
On Apr 28, 2009, at 10:12, Mr. Frank Cobia wrote: If I am using the EOGenerator files from WOLips is there not a way to update a relationship without automatically updating the inverse relationship? For to ones you can use takeStoredValueForKey(...) For to manys you can use includeObjectIntoPropertyWithKey(...) and excludeObjectFromPropertyWithKey(...) None of these methods will touch the inverse relationship. If these methods aren't good enough to do what you want, please elaborate on your situation. F ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Inverse Relationships
Thank you. That fixed it. I did have it backwards.
Frank
On Apr 28, 2009, at 10:23 AM, David Avendasora wrote:
Hi Frank,
On Apr 28, 2009, at 10:12 AM, Mr. Frank Cobia wrote:
If I am using the EOGenerator files from WOLips is there not a way
to update a relationship without automatically updating the inverse
relationship? If I just call setProperty() then the inverse
relationship will get called.
I believe this will only update the inverse if you have the
er.extensions.ERXEnterpriseObject.updateInverseRelationships=true
set. Otherwise it should only call takeStoredValueForKey(aValue,
Property) and stop.
I had thought if I called setPropertyRelationship() with
er.extensions.ERXEnterpriseObject.updateInverseRelationships=false
I would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship.
You have it backwards. The setPropertyRelationship() _explicitly_
sets the inverse, and the updateInverseRelationship will have no
effect on it.
So, in short, if you want to have control over setting one side only
of a relationship, use either of the following _Without_ the
updateInverseRelationship=true:
takeStoredValueForKey(aValue, Key);
or
setProperty(aValue);
Dave
For example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from + setasideCode()
+ to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value,
setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is
false it still calls either
addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this correct?
If so, is there a way to do this through the generated files?
Thanks,
Frank
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Re: Inverse Relationships
Sorry, I need a little more help. I understand this, but I would like
to keep the updateReverseRelationships=true for the app, but in one
situation I would like to set the relationship without updating the
reverse. Is it possible to do this?
Thanks,
Frank
On Apr 28, 2009, at 10:23 AM, David Avendasora wrote:
Hi Frank,
On Apr 28, 2009, at 10:12 AM, Mr. Frank Cobia wrote:
If I am using the EOGenerator files from WOLips is there not a way
to update a relationship without automatically updating the inverse
relationship? If I just call setProperty() then the inverse
relationship will get called.
I believe this will only update the inverse if you have the
er.extensions.ERXEnterpriseObject.updateInverseRelationships=true
set. Otherwise it should only call takeStoredValueForKey(aValue,
Property) and stop.
I had thought if I called setPropertyRelationship() with
er.extensions.ERXEnterpriseObject.updateInverseRelationships=false
I would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship.
You have it backwards. The setPropertyRelationship() _explicitly_
sets the inverse, and the updateInverseRelationship will have no
effect on it.
So, in short, if you want to have control over setting one side only
of a relationship, use either of the following _Without_ the
updateInverseRelationship=true:
takeStoredValueForKey(aValue, Key);
or
setProperty(aValue);
Dave
For example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from + setasideCode()
+ to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value,
setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is
false it still calls either
addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this correct?
If so, is there a way to do this through the generated files?
Thanks,
Frank
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Re: Inverse Relationships
currently not directly .. it's an all-or-nothing setting. you would
need to remove the inverse relationship from the model to turn it off.
you MIGHT be able to manually do a
_setUpdateInverseRelationships(false) (or whatever that method is
called) on the EO before you set the relationship in question, but
make sure you put the thing to turn it back on in a finally block.
ms
On Apr 28, 2009, at 10:59 AM, Mr. Frank Cobia wrote:
Sorry, I need a little more help. I understand this, but I would
like to keep the updateReverseRelationships=true for the app, but in
one situation I would like to set the relationship without updating
the reverse. Is it possible to do this?
Thanks,
Frank
On Apr 28, 2009, at 10:23 AM, David Avendasora wrote:
Hi Frank,
On Apr 28, 2009, at 10:12 AM, Mr. Frank Cobia wrote:
If I am using the EOGenerator files from WOLips is there not a way
to update a relationship without automatically updating the
inverse relationship? If I just call setProperty() then the
inverse relationship will get called.
I believe this will only update the inverse if you have the
er.extensions.ERXEnterpriseObject.updateInverseRelationships=true
set. Otherwise it should only call takeStoredValueForKey(aValue,
Property) and stop.
I had thought if I called setPropertyRelationship() with
er.extensions.ERXEnterpriseObject.updateInverseRelationships=false
I would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship.
You have it backwards. The setPropertyRelationship() _explicitly_
sets the inverse, and the updateInverseRelationship will have no
effect on it.
So, in short, if you want to have control over setting one side
only of a relationship, use either of the following _Without_ the
updateInverseRelationship=true:
takeStoredValueForKey(aValue, Key);
or
setProperty(aValue);
Dave
For example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from +
setasideCode() + to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value,
setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is
false it still calls either
addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this correct?
If so, is there a way to do this through the generated files?
Thanks,
Frank
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Re: exception with a not null constraint....
Please keep messages on the list.
On Apr 28, 2009, at 4:12 AM, Theodore Petrosky wrote:
ok here we go...
I create a table with a repetition:
table
wo:WORepetition list = $dg.displayedObjects item = $current
//$current is of type Contact (it has the column dateInserted
I have in here an AjaxModalContainer. (label
=$current.companyName) ... click a companyName and get the modal
dialog to edit the meta data
so far everything is ok.
/table
interesting that I stuck a comment at the head of my saveEdits
function
top of saveEditsToContact +
Apr 28 06:48:59 AffluentCooperative[50613] INFO NSLog -
current.dateInserted() = 2009-04-25 04:00:00 Etc/GMT
current.dateInserted has a value however in the actual try block
INFO NSLog - ValidationException e = Please provide a bDate
Inserted/b.
I know that I would be thoroughly embarrassed to have a anyone
actually look at my code, but I can export the whole project and let
you see what I am doing. I use postgresql and migrations.
I don't get this
Ted
--- On Mon, 4/27/09, Chuck Hill ch...@global-village.net wrote:
From: Chuck Hill ch...@global-village.net
Subject: Re: exception with a not null constraint
To: Theodore Petrosky tedp...@yahoo.com
Cc: webobjects-dev@lists.apple.com
Date: Monday, April 27, 2009, 2:08 PM
On Apr 25, 2009, at 6:09 AM, Theodore Petrosky wrote:
I have an EO with a not null constraint on a date
columnn. I have a function that I call from a click that
sets a boolean (isDeleted) to true and saves the EO.
try {
contactEO.saveChanges();
} catch (ValidationException e) {
NSLog.out.appendln(ValidationException e = +
e.getMessage());
} catch (EOGeneralAdaptorException e) {
NSLog.out.appendln(EOGeneralAdaptorException e = +
e.getMessage());
}
}
It is throwing an exception and claiming that the date
field is null
Does the model allow null for this attribute? Did you
change the model after creating the database?
and violates the not null constraint. I don't have
anyplace in the interface that is wired to the date column
in question (it is the insertion date).
I guess I could just set the EO to accept nulls but I
thought I would try to understand why the saveChanges() is
trying to update the row with a null.
You are doing something wrong, either in your model or in
your code (or, I guess, in both). This is the first
thing to check:
http://wiki.objectstyle.org/confluence/display/WO/EOF-Using+EOF-The+EOF+Commandments
Chuck
--Chuck Hill
Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
--
Chuck Hill Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
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Re: Inverse Relationships
Thanks. I was going to just remove the reverse relationship, but there
is actually a place where I do a query that uses the inverse
relationship. So my solution, which seems to work, is to remove the
class property flag for the inverse relationship. The only downside I
have come across is that there is then no ERXKey generated for that
inverse relationship.
Is there a way to have an ERXKey generated for a non-class property or
am I stuck adding it by hand?
Thanks,
Frank
On Apr 28, 2009, at 11:06 AM, Mike Schrag wrote:
currently not directly .. it's an all-or-nothing setting. you would
need to remove the inverse relationship from the model to turn it
off. you MIGHT be able to manually do a
_setUpdateInverseRelationships(false) (or whatever that method is
called) on the EO before you set the relationship in question, but
make sure you put the thing to turn it back on in a finally block.
ms
On Apr 28, 2009, at 10:59 AM, Mr. Frank Cobia wrote:
Sorry, I need a little more help. I understand this, but I would
like to keep the updateReverseRelationships=true for the app, but
in one situation I would like to set the relationship without
updating the reverse. Is it possible to do this?
Thanks,
Frank
On Apr 28, 2009, at 10:23 AM, David Avendasora wrote:
Hi Frank,
On Apr 28, 2009, at 10:12 AM, Mr. Frank Cobia wrote:
If I am using the EOGenerator files from WOLips is there not a
way to update a relationship without automatically updating the
inverse relationship? If I just call setProperty() then the
inverse relationship will get called.
I believe this will only update the inverse if you have the
er.extensions.ERXEnterpriseObject.updateInverseRelationships=true
set. Otherwise it should only call takeStoredValueForKey(aValue,
Property) and stop.
I had thought if I called setPropertyRelationship() with
er
.extensions.ERXEnterpriseObject.updateInverseRelationships=false
I would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship.
You have it backwards. The setPropertyRelationship() _explicitly_
sets the inverse, and the updateInverseRelationship will have no
effect on it.
So, in short, if you want to have control over setting one side
only of a relationship, use either of the following _Without_ the
updateInverseRelationship=true:
takeStoredValueForKey(aValue, Key);
or
setProperty(aValue);
Dave
For example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode
value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from +
setasideCode() + to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value,
setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is
false it still calls either
addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this
correct? If so, is there a way to do this through the generated
files?
Thanks,
Frank
___
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Re: Inverse Relationships
I would add it by hand to your Entity.java file. ;-)
On Apr 28, 2009, at 1:10 PM, Mr. Frank Cobia wrote:
Thanks. I was going to just remove the reverse relationship, but
there is actually a place where I do a query that uses the inverse
relationship. So my solution, which seems to work, is to remove the
class property flag for the inverse relationship. The only downside
I have come across is that there is then no ERXKey generated for
that inverse relationship.
Is there a way to have an ERXKey generated for a non-class property
or am I stuck adding it by hand?
Thanks,
Frank
On Apr 28, 2009, at 11:06 AM, Mike Schrag wrote:
currently not directly .. it's an all-or-nothing setting. you
would need to remove the inverse relationship from the model to
turn it off. you MIGHT be able to manually do a
_setUpdateInverseRelationships(false) (or whatever that method is
called) on the EO before you set the relationship in question, but
make sure you put the thing to turn it back on in a finally block.
ms
On Apr 28, 2009, at 10:59 AM, Mr. Frank Cobia wrote:
Sorry, I need a little more help. I understand this, but I would
like to keep the updateReverseRelationships=true for the app, but
in one situation I would like to set the relationship without
updating the reverse. Is it possible to do this?
Thanks,
Frank
On Apr 28, 2009, at 10:23 AM, David Avendasora wrote:
Hi Frank,
On Apr 28, 2009, at 10:12 AM, Mr. Frank Cobia wrote:
If I am using the EOGenerator files from WOLips is there not a
way to update a relationship without automatically updating the
inverse relationship? If I just call setProperty() then the
inverse relationship will get called.
I believe this will only update the inverse if you have the
er.extensions.ERXEnterpriseObject.updateInverseRelationships=true
set. Otherwise it should only call takeStoredValueForKey(aValue,
Property) and stop.
I had thought if I called setPropertyRelationship() with
er
.extensions.ERXEnterpriseObject.updateInverseRelationships=false
I would get the desired behavior, but it seems that
setPropertyRelationship() always updates the inverse relationship.
You have it backwards. The setPropertyRelationship() _explicitly_
sets the inverse, and the updateInverseRelationship will have no
effect on it.
So, in short, if you want to have control over setting one side
only of a relationship, use either of the following _Without_ the
updateInverseRelationship=true:
takeStoredValueForKey(aValue, Key);
or
setProperty(aValue);
Dave
For example:
public void
setSetasideCodeRelationship(com.ods.wo.bids.db.SetasideCode
value) {
if (_Bid.LOG.isDebugEnabled()) {
_Bid.LOG.debug(updating setasideCode from +
setasideCode() + to + value);
}
if
(er
.extensions
.eof
.ERXGenericRecord
.InverseRelationshipUpdater.updateInverseRelationships()) {
setSetasideCode(value);
}
else if (value == null) {
com.ods.wo.bids.db.SetasideCode oldValue = setasideCode();
if (oldValue != null) {
removeObjectFromBothSidesOfRelationshipWithKey(oldValue,
setasideCode);
}
} else {
addObjectToBothSidesOfRelationshipWithKey(value,
setasideCode);
}
}
So even if
er.extensions.ERXEnterpriseObject.updateInverseRelationships is
false it still calls either
addObjectsToBothSidesOfRelationshipWithKey() or
removeObjectFromBothSidesOfRelationshipWithKey(). Is this
correct? If so, is there a way to do this through the generated
files?
Thanks,
Frank
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Re: Inverse Relationships
Is there a way to have an ERXKey generated for a non-class property or am I stuck adding it by hand? sort of defeats the purpose of being non class :) there's nothing magical about them, though -- new ERXKeywhatever(keyname). ms ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Waiting for Request with JDBCAdaptorException
Please keep messages on the list. On Apr 27, 2009, at 10:05 PM, T R T wrote: Hi Chunk, Chuck. Please. I am new to webobject environment and have to make it working for one project in Mac OS Xserver 10.5.6. The version of the webobject is 5.4.3. The database server is mysql in another server- linux. The mysql connection is working fine between Mac and linux. The application has been configured and started using Java Monitor without problem. But when I try to connect to the application (http://.../cgi-bin/WebObjects/. ) it produce “An Internal Server Error...”. That means your application threw an exception. The application log shows the exception below and the wotaskd log keep “waiting for request”. The netsta showing the following: t2gtestnz:~ sysas$ netstat -an | grep 1085 tcp4 0 0 10.50.6.18.1085 10.50.6.18.49517 ESTABLISHED tcp4 0 0 10.50.6.18.49517 10.50.6.18.1085 ESTABLISHED tcp4 0 0 10.50.6.18.1085 10.50.6.18.49161 ESTABLISHED tcp4 0 0 10.50.6.18.49161 10.50.6.18.1085 ESTABLISHED tcp4 0 0 *.1085 *.* LISTEN tcp4 0 0 10.50.6.18.1085 10.50.6.18.49537 TIME_WAIT udp4 0 0 *.1085 *.* I checked your group and there might be similar problem in the archive, but there was not exactly the same problem although it was useful to check some configuration which was fine in my case. The Exception: [2009-04-25 14:31:01 NZST] WorkerThread1 com.webobjects.appserver._private.WOComponentRequestHandler: Exception occurred while handling request: com.webobjects.foundation.NSForwardException [com.webobjects.jdbcadaptor.JDBCAdaptorException] null [2009-04-25 14:31:01 NZST] WorkerThread1 WOWorkerThread id=1 socket=Socket[addr=/10.50.6.18,port=51504,localport=2001] Exception occurred while responding to client: com.webobjects.foundation.NSForwardException [com.webobjects.jdbcadaptor.JDBCAdaptorException] null I have no idea what that is. You will need to catch the exception (try in dispatchRequest) and drill down into the NSForwardException and log out the details. ERXJDBCConnectionAnalyzer from Project Wonder might help you here. Chuck default session timeout is 3600.0 session timeout is now 3600.0 I really need help to make this working. Thank you in advance. Tony Get fit, feel better! All the help you need at Yahoo!Xtra Health -- Chuck Hill Senior Consultant / VP Development Come to WOWODC'09 in San Fran this June! http://www.wocommunity.org/wowodc09/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Entity Modeler
Hola t...@s! Is it me, or the reverse engine of Entity Modeller is not working? here an error: java.lang.NoClassDefFoundError: org/eclipse/jdt/debug/ui/ launchConfigurations/JavaApplicationLaunchShortcut at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:675) at org .eclipse .osgi .internal .baseadaptor.DefaultClassLoader.defineClass(DefaultClassLoader.java:161) at org .eclipse .osgi .baseadaptor.loader.ClasspathManager.defineClass(ClasspathManager.java: 501) at org .eclipse .osgi .baseadaptor .loader.ClasspathManager.findClassImpl(ClasspathManager.java:471) at org .eclipse .osgi .baseadaptor .loader.ClasspathManager.findLocalClassImpl(ClasspathManager.java:430) at org .eclipse .osgi .baseadaptor .loader.ClasspathManager.findLocalClass(ClasspathManager.java:413) at org .eclipse .osgi .internal .baseadaptor.DefaultClassLoader.findLocalClass(DefaultClassLoader.java: 189) at org .eclipse .osgi .framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java: 340) at org .eclipse .osgi .framework .internal.core.SingleSourcePackage.loadClass(SingleSourcePackage.java: 37) at org .eclipse .osgi .framework .internal.core.BundleLoader.findClassInternal(BundleLoader.java:405) at org .eclipse .osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java: 369) at org .eclipse .osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java: 357) at org .eclipse .osgi .internal .baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:83) at java.lang.ClassLoader.loadClass(ClassLoader.java:251) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:374) at org .objectstyle .wolips .eomodeler .eclipse .EclipseEOClassLoaderFactory .fillInModelClasspath(EclipseEOClassLoaderFactory.java:68) at org .objectstyle .wolips .eomodeler .core .model .AbstractEOClassLoader .createClassLoaderForModel(AbstractEOClassLoader.java:29) at org.objectstyle.wolips.eomodeler.core.model.IEOClassLoaderFactory $Utility.createClassLoader(IEOClassLoaderFactory.java:40) at org .objectstyle .wolips .eomodeler .actions.ReverseEngineerAction.run(ReverseEngineerAction.java:110) at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:256) at org .eclipse .ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:229) at org .eclipse .jface .action .ActionContributionItem .handleWidgetSelection(ActionContributionItem.java:546) at org.eclipse.jface.action.ActionContributionItem.access $2(ActionContributionItem.java:490) at org.eclipse.jface.action.ActionContributionItem $6.handleEvent(ActionContributionItem.java:443) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1495) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1519) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1504) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1295) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3350) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2950) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2389) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2219) at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466) at org .eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java: 289) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java: 461) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org .eclipse .ui.internal.ide.application.IDEApplication.start(IDEApplication.java: 106) at org .eclipse .equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:169) at org .eclipse .core .runtime .internal .adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:106) at org .eclipse .core .runtime .internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:76) at org .eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java: 363) at org .eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java: 176) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun .reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 39) at sun .reflect .DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:585) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:508) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447) at org.eclipse.equinox.launcher.Main.run(Main.java:1173) Dino --
EOF issues
Hi all, I am currently investigating an interesting problem. Here is the problem description: A database table Person is represented in EOModel as Person with 3 childs Staff , Student, External. There is type column in Person to tell if he is staff/student/external. The problem is that when a External object is fetched into a ec, changed its type to student and saved changes, i.e. External external = External.fetchExternal(ec, External.ID_KEY, '12345'); external.setType(student); external.editingContext().saveChanges(); then in the same ec (or different ec) the now student still being recognized as External somehow. When you do Student student = Student.fetchRequiredStudent(ec, Student.ID_KEY, '12345'); or even Person student = Person.fetchRequiredPerson(ec, Person.ID_KEY, '12345'); An databaseContextFailedToFetchObject exception is thrown. I am thinking the objects graph is now broken because Staff Object supposed to be vanished from the graph but it didn't. Any idea?? Regards, Harvey ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EOF issues
Harvey, There are many discussions about this in the history, but the basic idea is this - EOF doesn't like changing attributes that determine the class/entity of an object. The general consensus from the last time this came up is, change how you do things so you don't have to do this. How much behavior is actually different here? Do you really need sub- entities for this? I remember a discussion at WWDC a number of years ago where the iTunes team said that out of 400 entities, they only had 2 sets of object hierarchies. One way I approach different behaviors when I don't want sub-entities is to have a set of objects that do the special work you'd have a subclass do, and have it determine which one to use dynamically. For instance, if the type is Student (right now) and you ask how many classes it is taking, the helper class could make that determination and return the result. You can use key-value coding to make this nearly transparent to the users of the Person object. Ken On Apr 28, 2009, at 10:31 PM, M.Y. Tjoe wrote: Hi all, I am currently investigating an interesting problem. Here is the problem description: A database table Person is represented in EOModel as Person with 3 childs Staff , Student, External. There is type column in Person to tell if he is staff/student/external. The problem is that when a External object is fetched into a ec, changed its type to student and saved changes, i.e. External external = External.fetchExternal(ec, External.ID_KEY, '12345'); external.setType(student); external.editingContext().saveChanges(); then in the same ec (or different ec) the now student still being recognized as External somehow. When you do Student student = Student.fetchRequiredStudent(ec, Student.ID_KEY, '12345'); or even Person student = Person.fetchRequiredPerson(ec, Person.ID_KEY, '12345'); An databaseContextFailedToFetchObject exception is thrown. I am thinking the objects graph is now broken because Staff Object supposed to be vanished from the graph but it didn't. Any idea?? Regards, Harvey ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/kenlists%40anderhome.com This email sent to kenli...@anderhome.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EOF issues
On Apr 28, 2009, at 7:31 PM, M.Y. Tjoe wrote: Hi all, I am currently investigating an interesting problem. Here is the problem description: A database table Person is represented in EOModel as Person with 3 childs Staff , Student, External. There is type column in Person to tell if he is staff/student/external. The problem is that when a External object is fetched into a ec, changed its type to student and saved changes, You cannot, may not, must not change the type of an object. Look at a Role pattern instead. Chuck i.e. External external = External.fetchExternal(ec, External.ID_KEY, '12345'); external.setType(student); external.editingContext().saveChanges(); then in the same ec (or different ec) the now student still being recognized as External somehow. When you do Student student = Student.fetchRequiredStudent(ec, Student.ID_KEY, '12345'); or even Person student = Person.fetchRequiredPerson(ec, Person.ID_KEY, '12345'); An databaseContextFailedToFetchObject exception is thrown. I am thinking the objects graph is now broken because Staff Object supposed to be vanished from the graph but it didn't. Any idea?? Regards, Harvey ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net -- Chuck Hill Senior Consultant / VP Development Come to WOWODC'09 in San Fran this June! http://www.wocommunity.org/wowodc09/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EOF issues
one fish, two fish, red fish, blue fish. On Apr 28, 2009, at 10:42 PM, Chuck Hill wrote: On Apr 28, 2009, at 7:31 PM, M.Y. Tjoe wrote: Hi all, I am currently investigating an interesting problem. Here is the problem description: A database table Person is represented in EOModel as Person with 3 childs Staff , Student, External. There is type column in Person to tell if he is staff/student/external. The problem is that when a External object is fetched into a ec, changed its type to student and saved changes, You cannot, may not, must not change the type of an object. Look at a Role pattern instead. Chuck i.e. External external = External.fetchExternal(ec, External.ID_KEY, '12345'); external.setType(student); external.editingContext().saveChanges(); then in the same ec (or different ec) the now student still being recognized as External somehow. When you do Student student = Student.fetchRequiredStudent(ec, Student.ID_KEY, '12345'); or even Person student = Person.fetchRequiredPerson(ec, Person.ID_KEY, '12345'); An databaseContextFailedToFetchObject exception is thrown. I am thinking the objects graph is now broken because Staff Object supposed to be vanished from the graph but it didn't. Any idea?? Regards, Harvey ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net This email sent to ch...@global-village.net -- Chuck Hill Senior Consultant / VP Development Come to WOWODC'09 in San Fran this June! http://www.wocommunity.org/wowodc09/ ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/kenlists%40anderhome.com This email sent to kenli...@anderhome.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Help with NPE in EOCustomObject.willReadRelationship()
Hi All, I have an issue where a NullPointerException is thrown within EOCustomObject.willReadRelationship(). Before I log a radar, I want to see if anyone else has had a similar issue and if so, what you did to resolve it. I believe the issue is that EOCustomObject.willReadRelationship() is called firing a fault on a deleted EO. The only way that EOCustomObject.willReadRelationship() will throw a NPE is if editingContext() returns null and 'object' is a fault (ie. EOFaultHandler.isFault(object) returns true). What am I doing to cause this sequence of events you ask? it's relatively simple: - I have a class (path.to.class.listening.to.editingcontext.notification.MyClass from stack trace below) that listens to EOEditingContext.EditingContextDidSaveChangesNotification notifications and does some processing. - The NPE occurs in a debug statement that prints the NSNotification object passed to my MyClass.editingContextDidSaveChanges() method before any processing occurs. - I tracked down the culprits to be 3 of 10 deleted objects in the NSNotification's deleted userInfo key value, throwing NPE's in their EOCustomObject.toString() method. Obviously deleted EO's shouldn't have editingContext()'s, but I believe that EOCustomObject.eoDescription() should not fire _any_ faults or EOCustomObject.willReadRelationship() should check to see if editingContext() is null when 'object' is a fault. I can override EOCustomObject.willReadRelationship() in my super class and return null when editingContext() == null EOFaultHandler.isFault(object), but I want to know what other potential issues this will cause. Model: Entity1 Entity2 Entity3 - There are 3 similar relationships between Entity2 Entity3 (used for different purposes) Stacktrace: java.lang.NullPointerException at com .webobjects .eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1293) at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer $ _LazyGenericRecordBinding .valueInObject(_EOMutableKnownKeyDictionary.java:560) at com .webobjects .eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1736) at path .to.my.eo.class._Entity3.myToManyRelationshipToEntity2(_AnEntity.java: 492) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun .reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 39) at sun .reflect .DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.webobjects.foundation.NSKeyValueCoding$ValueAccessor $1.methodValue(NSKeyValueCoding.java:684) at com.webobjects.foundation.NSKeyValueCoding $_MethodBinding.valueInObject(NSKeyValueCoding.java:1160) at com .webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java: 1559) at com .webobjects.eocontrol.EOCustomObject.eoDescription(EOCustomObject.java: 793) at com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java: 239) at com.webobjects.foundation.NSArray.toString(NSArray.java:920) at java.lang.String.valueOf(String.java:2827) at java.lang.StringBuffer.append(StringBuffer.java:219) at com.webobjects.foundation.NSDictionary.toString(NSDictionary.java: 541) at java.lang.String.valueOf(String.java:2827) at java.lang.StringBuffer.append(StringBuffer.java:219) at com.webobjects.foundation.NSNotification.toString(NSNotification.java: 175) at path .to .class .listening .to .editingcontext .notification .MyClass.editingContextDidSaveChanges(EOCacheChangeCollector.java:141) Regards Peter Vandoros Software Engineer Etech Group Pty Ltd Level 3/21 Victoria St Melbourne VIC 3000 Australia Ph: +61 3 9639 9677 Fax: +61 3 9639 9577 -- IMPORTANT: This e-mail message and any attachments are confidential and may be privileged. If received in error, please reply to this message and destroy all copies and any attachments. You should check this message and any attachments for viruses or defects. Our liability is limited to resupplying any affected message or attachments. For more information about Etech Group, please visit us at http://www.etechgroup.com.au . ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Help with NPE in EOCustomObject.willReadRelationship()
Hi Peter, On Apr 28, 2009, at 9:20 PM, Peter Vandoros wrote: Hi All, I have an issue where a NullPointerException is thrown within EOCustomObject.willReadRelationship(). Before I log a radar, I want to see if anyone else has had a similar issue and if so, what you did to resolve it. I believe the issue is that EOCustomObject.willReadRelationship() is called firing a fault on a deleted EO. The only way that EOCustomObject.willReadRelationship() will throw a NPE is if editingContext() returns null and 'object' is a fault (ie. EOFaultHandler.isFault(object) returns true). What am I doing to cause this sequence of events you ask? it's relatively simple: - I have a class (path.to.class.listening.to.editingcontext.notification.MyClass from stack trace below) that listens to EOEditingContext.EditingContextDidSaveChangesNotification notifications and does some processing. - The NPE occurs in a debug statement that prints the NSNotification object passed to my MyClass.editingContextDidSaveChanges() method before any processing occurs. That is not going to have happy results... - I tracked down the culprits to be 3 of 10 deleted objects in the NSNotification's deleted userInfo key value, throwing NPE's in their EOCustomObject.toString() method. See! :-) Yes, you should not do anything to a deleted object. It makes EOF rather cross. Obviously deleted EO's shouldn't have editingContext()'s, but I believe that EOCustomObject.eoDescription() should not fire _any_ faults I don't think that I would agree with that. The information from firing faults can be very useful. You can certainly re-implement it to not fire the faults or output something very limited if editingContext() == null. That is a reasonable suggestion to make in a bug report. or EOCustomObject.willReadRelationship() should check to see if editingContext() is null when 'object' is a fault. And throw an exception. That is a reasonable suggestion to make in a bug report. I can override EOCustomObject.willReadRelationship() in my super class and return null when editingContext() == null EOFaultHandler.isFault(object), but I want to know what other potential issues this will cause. That would make me nervous. If this method is called when editingContext() == null, that indicates to me a coding mistake. An exception seems appropriate and the NPE is not exactly helpful. Chuck Model: Entity1 Entity2 Entity3 - There are 3 similar relationships between Entity2 Entity3 (used for different purposes) Stacktrace: java.lang.NullPointerException at com .webobjects .eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java: 1293) at com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer $ _LazyGenericRecordBinding .valueInObject(_EOMutableKnownKeyDictionary.java:560) at com .webobjects .eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1736) at path .to .my.eo.class._Entity3.myToManyRelationshipToEntity2(_AnEntity.java: 492) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun .reflect .NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun .reflect .DelegatingMethodAccessorImpl .invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.webobjects.foundation.NSKeyValueCoding$ValueAccessor $1.methodValue(NSKeyValueCoding.java:684) at com.webobjects.foundation.NSKeyValueCoding $_MethodBinding.valueInObject(NSKeyValueCoding.java:1160) at com .webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java: 1559) at com .webobjects .eocontrol.EOCustomObject.eoDescription(EOCustomObject.java:793) at com.webobjects.eocontrol.EOCustomObject.toString(EOCustomObject.java: 239) at com.webobjects.foundation.NSArray.toString(NSArray.java:920) at java.lang.String.valueOf(String.java:2827) at java.lang.StringBuffer.append(StringBuffer.java:219) at com.webobjects.foundation.NSDictionary.toString(NSDictionary.java:541) at java.lang.String.valueOf(String.java:2827) at java.lang.StringBuffer.append(StringBuffer.java:219) at com .webobjects.foundation.NSNotification.toString(NSNotification.java: 175) at path .to .class .listening .to .editingcontext .notification .MyClass.editingContextDidSaveChanges(EOCacheChangeCollector.java:141) Regards Peter Vandoros Software Engineer Etech Group Pty Ltd Level 3/21 Victoria St Melbourne VIC 3000 Australia Ph: +61 3 9639 9677 Fax: +61 3 9639 9577 -- IMPORTANT: This e-mail message and any attachments are confidential and may be privileged. If received in error, please reply to this message and destroy all copies and any attachments. You should check this message and any attachments for viruses or defects. Our liability is limited to
Re: Help with NPE in EOCustomObject.willReadRelationship()
Hi Chuck, Thanks for responding Chuck :) Just to be clear, I don't touch the deleted objects in this notification, I simply had debugging enabled and started getting errors :) On 29/04/2009, at 2:40 PM, Chuck Hill wrote: - The NPE occurs in a debug statement that prints the NSNotification object passed to my MyClass.editingContextDidSaveChanges() method before any processing occurs. That is not going to have happy results... What I don't understand is why the deleted objects are part of the notification if they're not meant to be used at all? Obviously deleted EO's shouldn't have editingContext()'s, but I believe that EOCustomObject.eoDescription() should not fire _any_ faults I don't think that I would agree with that. The information from firing faults can be very useful. You can certainly re-implement it to not fire the faults or output something very limited if editingContext() == null. That is a reasonable suggestion to make in a bug report. I should clarify: EOCustomObject.eoDescription() should not fire _any_ faults _when_ the EO is in an invalid state (eg. editingContext() == null) .. and yes, I agree with you that output much more limited should be used instead. or EOCustomObject.willReadRelationship() should check to see if editingContext() is null when 'object' is a fault. And throw an exception. That is a reasonable suggestion to make in a bug report. Technically, it is throwing an exception now :) ... so the only reasonable exception to throw should again a NPE but with a reason as to the cause That would make me nervous. If this method is called when editingContext() == null, that indicates to me a coding mistake. An exception seems appropriate and the NPE is not exactly helpful. I agree with you that it is a mistake when called and editingContext() == null, but in my case, I am simply printing the NSNotification object for debugging... that surely shouldn't cause a NPE? Regards Peter Vandoros Software Engineer Etech Group Pty Ltd Level 3/21 Victoria St Melbourne VIC 3000 Australia Ph: +61 3 9639 9677 Fax: +61 3 9639 9577 -- IMPORTANT: This e-mail message and any attachments are confidential and may be privileged. If received in error, please reply to this message and destroy all copies and any attachments. You should check this message and any attachments for viruses or defects. Our liability is limited to resupplying any affected message or attachments. For more information about Etech Group, please visit us at http://www.etechgroup.com.au . ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: EOF issues
separate set of object hierarchies seems feasible in our case as there is lot of dependency on existing framework. Thanks. Regards, Harvey On 29/04/2009, at 12:41 PM, Ken Anderson wrote: Harvey, There are many discussions about this in the history, but the basic idea is this - EOF doesn't like changing attributes that determine the class/entity of an object. The general consensus from the last time this came up is, change how you do things so you don't have to do this. How much behavior is actually different here? Do you really need sub- entities for this? I remember a discussion at WWDC a number of years ago where the iTunes team said that out of 400 entities, they only had 2 sets of object hierarchies. One way I approach different behaviors when I don't want sub-entities is to have a set of objects that do the special work you'd have a subclass do, and have it determine which one to use dynamically. For instance, if the type is Student (right now) and you ask how many classes it is taking, the helper class could make that determination and return the result. You can use key-value coding to make this nearly transparent to the users of the Person object. Ken On Apr 28, 2009, at 10:31 PM, M.Y. Tjoe wrote: Hi all, I am currently investigating an interesting problem. Here is the problem description: A database table Person is represented in EOModel as Person with 3 childs Staff , Student, External. There is type column in Person to tell if he is staff/student/external. The problem is that when a External object is fetched into a ec, changed its type to student and saved changes, i.e. External external = External.fetchExternal(ec, External.ID_KEY, '12345'); external.setType(student); external.editingContext().saveChanges(); then in the same ec (or different ec) the now student still being recognized as External somehow. When you do Student student = Student.fetchRequiredStudent(ec, Student.ID_KEY, '12345'); or even Person student = Person.fetchRequiredPerson(ec, Person.ID_KEY, '12345'); An databaseContextFailedToFetchObject exception is thrown. I am thinking the objects graph is now broken because Staff Object supposed to be vanished from the graph but it didn't. Any idea?? Regards, Harvey ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/kenlists%40anderhome.com This email sent to kenli...@anderhome.com ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
