com.caucho.cache.event.CacheEntryEvent Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of javaee-16 Show documentation

JavaEE 1.6 API for Resin Java Application Server

There is a newer version: 4.0.66

/*
 * Copyright (c) 1998-2018 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *
 *   Free Software Foundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.cache.event;

import java.util.EventObject;

import com.caucho.cache.Cache;

public abstract class CacheEntryEvent extends EventObject
{
  public CacheEntryEvent(Cache source)
  {
    super(source);
  }
  
  public final Cache getSource()
  {
    return (Cache) super.getSource();
  }
  
  public abstract K getKey();
  
  public abstract V getValue();
  
  public V getOldValue()
  {
    throw new UnsupportedOperationException(getClass().getName());
  }
  
  public boolean isOldValueAvailable()
  {
    return false;
  }
}