Shared EC problems for a newbie
Shared EC problems for a newbie
- Subject: Shared EC problems for a newbie
- From: Timmy <email@hidden>
- Date: Thu, 23 Feb 2006 14:37:28 -0800
I've got a set of EOs that are fetched in Application by a
EOSharedEditingContext. These are objects that are used to populate
lists in my application. I have a component where an admin type can
(hopefully) alter these objects when/if truly necessary - but it
would be rare. So, they are truly "read mostly"/"write rarely" objects.
I have a method that attempts to edit one of these EOs and to
accomplish that attempts to get a copy of the EO in a local editing
context. In my method I have the following line:
EntityName _myLocalEO = (EntityName)
EOUtilities.localInstanceOfObject(myPageContext(),entityItem());
myPageContext() returns a new local EOEditingContext that is a child
of the session's defaultEditingContext (I think). It is instantiated
like this:
setMyPageContext(new EOEditingContext((Session)session
().defaultEditingContext()));
The line calling EOUtilities.localInstanceOfObject() above throws a
null pointer exception and I can't figure out exactly why this is
happening. Below is the crash dump starting with my method
(removeDosTypeFromUse()). None of the arguments I am passing into
localInstanceOfObject are null.
[2006-02-23 14:11:10 PST] <WorkerThread0> java.lang.NullPointerException
at com.webobjects.eocontrol.EOEditingContext.faultForGlobalID
(EOEditingContext.java:3678)
at com.webobjects.eoaccess.EOUtilities.localInstanceOfObject
(EOUtilities.java:942)
at DosCodesPage.removeDosTypeFromUse(DosCodesPage.java:173)
Can anyone point me in the right direction?
Tim
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