Examples of org.apache.cayenne.intercept.DataChannelCallbackInterceptor

org.apache.cayenne.intercept.DataChannelCallbackInterceptor

Implements JPA-compliant "PreUpdate", "PostUpdate", "PostPersist", "PostRemove", "PostLoad" callbacks for the DataChannel operations.

Depending on how callbacks are registered, they are invoked either on persistent object instances directly or on an instance of an arbitrary listener class. Signature of a callback method of a persistent object is "void method()", while for a non-persistent listener it is "void method(Object)".

Note that this interceptor does not apply "PreRemove" and "PrePersist" callbacks during "onSync", assuming that a child ObjectContext did that already. It is often used in conjunction with {@link ObjectContextCallbackInterceptor} that adds those callbacks. @see ObjectContextCallbackInterceptor @since 3.0 @author Andrus Adamchik

            }
        }
    }


    void enableCallbacks() {
        DataChannelCallbackInterceptor interceptor = new DataChannelCallbackInterceptor();


        // must call pre-persist and pre-remove on commit
        interceptor.setContextCallbacksEnabled(true);
        interceptor.setChannel(serverContext.getParentDataDomain());


        serverContext.setChannel(interceptor);
    }

     * Creates a new Cayenne {@link ObjectContext} based on this factory DataDomain.
     * Returned context has lifecycle callbacks enabled, as expected in the JPA
     * environment.
     */
    protected ObjectContext createObjectContext() {
        DataChannelCallbackInterceptor postInterceptor = new DataChannelCallbackInterceptor();
        postInterceptor.setChannel(domain);
        ObjectStore objectStore = new ObjectStore(domain.getSharedSnapshotCache());


        ObjectContextCallbackInterceptor preInterceptor = new ObjectContextCallbackInterceptor();
        preInterceptor.setContext(new DataContext(postInterceptor, objectStore));

Examples of org.apache.cayenne.intercept.DataChannelCallbackInterceptor

Related Classes of org.apache.cayenne.intercept.DataChannelCallbackInterceptor