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Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more contributor license
 * agreements. See the NOTICE file 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 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.
 */

package org.apache.geode.internal.cache.lru;

public interface LRUClockNode {

  public void setNextLRUNode(LRUClockNode next);

  public void setPrevLRUNode(LRUClockNode prev);

  public LRUClockNode nextLRUNode();

  public LRUClockNode prevLRUNode();

  /** compute the new entry size and return the delta from the previous entry size */
  public int updateEntrySize(EnableLRU ccHelper);

  /**
   * compute the new entry size and return the delta from the previous entry size
   * 
   * @param value then entry's value
   * @since GemFire 6.1.2.9
   */
  public int updateEntrySize(EnableLRU ccHelper, Object value);

  public int getEntrySize();

  public boolean testRecentlyUsed();

  public void setRecentlyUsed();

  public void unsetRecentlyUsed();

  public void setEvicted();

  public void unsetEvicted();

  public boolean testEvicted();
}