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From "Andrus Adamchik (JIRA)" <>
Subject [jira] Created: (CAY-1412) Failures when defining callbacks for abstract entities
Date Wed, 31 Mar 2010 09:18:27 GMT
Failures when defining callbacks for abstract entities

                 Key: CAY-1412
             Project: Cayenne
          Issue Type: Bug
    Affects Versions: 3.0
            Reporter: Andrus Adamchik
            Priority: Minor
             Fix For: 3.0.1, 3.1M1

If a class for an abstract entity is defined as "abstract" (for now manually, see CAY-1411),
and a callback method is not defined (it will be generated as abstract in _Entity class),
Cayenne would throw something like this:

Exception in thread "main" java.lang.IllegalArgumentException: Class mrg.model.Product has
no valid callback method 'xxxxx'  

inside CallbackOnEntity. CallbackOnEntity should take into account abstract method definition
in a superclass to prevent this from happenning. 

For now a simple workaround is to define a noop non-abstract method in the abstract subclass.


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