|
| Re: [CDO] Problem with CDOStore.contains() [message #538998 is a reply to message #538982] |
Wed, 09 June 2010 10:01  |
|
Hi Claes,
I'm on the jump for a one day business trip so I may not have the time
now to fully investigate your problem. In the worst case I'll pick it up
on Friday. But see my comments below...
Am 09.06.2010 11:10, schrieb Claes Rosell:
> Hi,
>
> I am currently using CDO 3.0 20100526-1334 (Helios RC2) and I have run
> into a problem that in the end leaves me with a
> DanglingReferenceException.
>
>
> During a DeleteCommand a RemoveCommand is called to clean another
> Object from references to the object to delete.
> The RemoveCommand is doing an ownerList.containsAll(collection) call
> from its prepare method which returns false, hence never executes.
>
> It all boils down to an equals-call on AbstractCDOIDLong which tries
> to compare a CDOObject (in TRANSIENT state) with a CDOID. Is it valid
> for a feature-list of CDORevision to contain other things that CDOIDs?
Yes. But only while the object is in CDOState.NEW.
IIRC this may happen in scenarios where you create a refenrence from a
TRANSIENT object A to another TRANSIENT object B, then attach A but not
(yet) B. Object A will transition to NEW but can not "migrate" the
reference to B from an EObject to a CDOID. As an optimization during
attachment of B (so, generally during attachments) we keep the
"un-migrated" reference and fix it during commit.
I may be able to reproduce this in a test case on Friday. Can you please
file a bugzilla in the meantime?
Cheers
/Eike
----
http://thegordian.blogspot.com
http://twitter.com/eikestepper
>
> This problem seems to exist for indexOf() and lastIndexOf() as well.
>
> Best regards
> /Claes
>
> Stacktrace:
>
> at
> org.eclipse.emf.cdo.spi.common.id.AbstractCDOIDLong.equals(A bstractCDOIDLong.java:77)
>
> at java.util.ArrayList.indexOf(ArrayList.java:216)
> at java.util.ArrayList.contains(ArrayList.java:199)
> at
> org.eclipse.emf.cdo.spi.common.revision.BaseCDORevision.cont ains(BaseCDORevision.java:414)
>
> at org.eclipse.emf.internal.cdo.CDOStore.contains(CDOStore.java :244)
> at
> org.eclipse.emf.ecore.impl.EStoreEObjectImpl$BasicEStoreELis t.delegateContains(EStoreEObjectImpl.java:227)
>
> at
> org.eclipse.emf.ecore.impl.EStoreEObjectImpl$BasicEStoreELis t.delegateContainsAll(EStoreEObjectImpl.java:235)
>
> at
> org.eclipse.emf.common.util.DelegatingEList.containsAll(Dele gatingEList.java:125)
>
> at
> org.eclipse.emf.edit.command.RemoveCommand.prepare(RemoveCom mand.java:248)
>
> at
> org.eclipse.emf.common.command.AbstractCommand.canExecute(Ab stractCommand.java:114)
>
> at
> org.eclipse.emf.edit.command.AbstractOverrideableCommand.doC anExecute(AbstractOverrideableCommand.java:120)
>
> at
> org.eclipse.emf.edit.command.AbstractOverrideableCommand.can Execute(AbstractOverrideableCommand.java:113)
>
> at
> org.eclipse.emf.common.command.CompoundCommand.appendAndExec ute(CompoundCommand.java:656)
>
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
|
|
|
Powered by
FUDForum. Page generated in 0.03005 seconds
] 
Search
Help
Register
Login
Home
