[CAY-1412] Failures when defining callbacks for abstract entities

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.0
• Fix Version/s: Undefined future, 3.0.3
• Assignee: Unassigned
• Reporter: Andrus Adamchik
• Created: 31/Mar/10 09:17
• Updated: 29/Sep/14 19:52

Description

http://markmail.org/message/urk6a4c2owilyxmw

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.