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From "Andrus Adamchik (JIRA)" <j...@apache.org>
Subject [jira] Created: (CAY-1509) Lifecycle event annotations support
Date Sun, 14 Nov 2010 03:39:13 GMT
Lifecycle event annotations support
-----------------------------------

                 Key: CAY-1509
                 URL: https://issues.apache.org/jira/browse/CAY-1509
             Project: Cayenne
          Issue Type: Task
          Components: Core Library
    Affects Versions: 3.1M1
            Reporter: Andrus Adamchik
            Assignee: Andrus Adamchik
             Fix For: 3.1M1


Add annotations for lifecycle events:

@PrePersist, @PostPersist, etc. (all the standard ones, total of 8 annotations)

Each annotated method can process events for preset collection of entity classes and/or a
set of unknown entity classes tagged with a custom annotation. In the later case a listener
is cleanly decoupled from specific entities (this feature is mixin-inspired). E.g:

@Target(METHOD) @Retention(RUNTIME)
@PrePersist {
   Class<? extends Persistent>[] entityTypes();
   Class<? extends Annotation>[] entityAnnotations();
}

LifecycleCallbackRegistry API:

/**
 * This form of listener registration is very simple and type-safe compared to other forms
available in 3.0 LifecycleCallbackRegistry.
 */
public void addListener(Object annotatedListener);



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