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 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
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package org.apache.cayenne;

import org.apache.cayenne.reflect.LifecycleCallbackRegistry;

/**
 * A callback interface to listen to persistent object lifecycle events. Note that
 * listeners ARE NOT REQUIRED to implement this interface, and in fact most won't. It
 * exists for type safety and for simplifying listener registration. See
 * {@link LifecycleCallbackRegistry} for details on how to register callbacks.
 * 
 * @since 3.0
 * @author Andrus Adamchik
 */
public interface LifecycleListener {

    public static final int PRE_PERSIST = 0;
    public static final int PRE_REMOVE = 1;
    public static final int PRE_UPDATE = 2;
    public static final int POST_PERSIST = 3;
    public static final int POST_REMOVE = 4;
    public static final int POST_UPDATE = 5;
    public static final int POST_LOAD = 6;

    void prePersist(Object entity);

    void postPersist(Object entity);

    void preRemove(Object entity);

    void postRemove(Object entity);

    void preUpdate(Object entity);

    void postUpdate(Object entity);

    void postLoad(Object entity);
}
