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From "John Huss (JIRA)" <>
Subject [jira] [Created] (CAY-1832) Exception when modifying objects in postLoad callback
Date Tue, 04 Jun 2013 21:21:21 GMT
John Huss created CAY-1832:

             Summary: Exception when modifying objects in postLoad callback
                 Key: CAY-1832
             Project: Cayenne
          Issue Type: Bug
          Components: Core Library
    Affects Versions: 3.2M1
            Reporter: John Huss
            Assignee: John Huss
            Priority: Minor
             Fix For: 3.2M1

Say you have a postLoad callback on an entity that calls a setter on the object, for example:

public void publicCallback(Object entity) {
        Artist a = (Artist)entity;

This works if you fetch the object directly with a SelectQuery.  But if you fault in the object
through a relationship it will call BaseContext.prepareForAccess which has this:

            // sanity check...
            if (object.getPersistenceState() != PersistenceState.COMMITTED) {

                String state = PersistenceState.persistenceStateName(object

                // TODO: andrus 4/13/2006, modified and deleted states are possible due to
                // a race condition, should we handle them here?

                throw new FaultFailureException(...

Since the object is modified (not committed) an exception is thrown.  It is valid to allow
mutating an object during postLoad.

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