[OS-JIRA] Created: (CAY-489) performQuery overwrites local modifications in toMany relationships

From: Robert Wruck (JIRA) ("Robert)
Date: Mon Apr 03 2006 - 09:10:49 EDT

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    performQuery overwrites local modifications in toMany relationships
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             Key: CAY-489
             URL: http://objectstyle.org/jira/browse/CAY-489
         Project: Cayenne
            Type: Bug
      Components: Cayenne Core Library
        Versions: 1.1
        Reporter: Robert Wruck

    Here's my scenario:

    I have an Object of class A that has a toMany relationship to B.

    myA.getBList() returns a list of, say, 3 objects.

    I locally add an instance of B:

    myA.addToBList(myB);

    Now, myA.getBList() returns a list of 4 objects.

    If after that I perform a SelectQuery returning (among others) myA, myA.getBList() returns only the priginal 3 objects.
    I haven't done a commit yet, so I do now. All 4 (!) objects are written to the DB and after restarting the application, myA.getBList() returns 4 objects again.

    IMHO, performing a SelectQuery should not overwrite relationships of objects with PersistenceState.MODIFIED. 

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