RE: about object graph

From: Gentry, Michael \(Contractor\) ("Gentry,)
Date: Wed Jan 26 2005 - 16:41:05 EST

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    If your User object is deleted (say, outside Cayenne or in a different
    Java application) before you try saving, you'll get an exception because
    Cayenne will not be able to generate a correct UPDATE statement. The
    UPDATE statement that is generated references the User's primary key,
    which is now gone, and is therefore an error. Also worth looking at is
    the Optimistic Locking features, in case the row is altered outside of
    your application. Cayenne could still detect this situation when
    saving.

    /dev/mrg

    -----Original Message-----
    From: moraru_et..pymac.com [mailto:moraru_etc@spymac.com]
    Sent: Wednesday, January 26, 2005 1:16 PM
    To: cayenne-use..bjectstyle.org
    Subject: about object graph

    Hi, i want to know how the object graph is updated when a , let's say,
    User
    object is saved on the session and meanwhile it is deleted from db.

    This archive was generated by hypermail 2.0.0 : Wed Jan 26 2005 - 16:41:36 EST