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From "Andrus Adamchik (JIRA)" <>
Subject [JIRA] Created: (CAY-660) JPA-like callbacks support in the main Cayenne stack
Date Wed, 20 Sep 2006 22:58:48 GMT
JPA-like callbacks support in the main Cayenne stack 

         Key: CAY-660
     Project: Cayenne
        Type: New Feature

  Components: Cayenne Core Library  
    Versions: 3.0    
    Reporter: Andrus Adamchik
 Assigned to: Andrus Adamchik 
     Fix For: 3.0

JPA specification defines callbacks similar to our 1.1 DataContext events that can be invoked
either on an entity object or on an arbitrary class on commit:





With nested channels (CAY-658) and ObjectContext interface it should be possible to create
iterceptors for all these callbacks that are external to DataContext or any other Cayenne
classes. "PrePersist" and "PreRemove" (and possibly "PreUpdate" can go in an ObjectContext
interceptor, the rest in a DataChannel (specifically DataDomain) interceptor. No JPA or JDK1.5
dependencies are needed to implement that.

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