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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License. You
 * may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License. See accompanying
 * LICENSE file.
 */

package com.gemstone.gemfire.internal.cache;

import com.gemstone.gemfire.internal.offheap.Releasable;

/**
 * Any RegionEntry that is stored off heap must
 * implement this interface.
 * 
 * @author darrel
 *
 */
public interface OffHeapRegionEntry extends RegionEntry, Releasable {
  /**
   * OFF_HEAP_FIELD_READER
   * @return OFF_HEAP_ADDRESS
   */
  public long getAddress();
  /**
   * OFF_HEAP_FIELD_WRITER
   * @param expectedAddr OFF_HEAP_ADDRESS
   * @param newAddr OFF_HEAP_ADDRESS
   */
  public boolean setAddress(long expectedAddr, long newAddr);
}