lruhashmap.java

来自「采用JAVA开发」· Java 代码 · 共 40 行

package com.gctech.sms.sp.dwzb;
import java.util.*;

/**
 *
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: gctech</p>
 * @author [e-mail]
 * @version 1.0
 */
public class LRUHashMap extends LinkedHashMap {

  int max = 300;
  public LRUHashMap()
  {
    super();
  }

  public LRUHashMap(Map map)
  {
    super(map);
  }
  public void setMax(int max)
  {
    this.max = max;
  }
  public int getMax()
  {
    return max;
  }

  protected boolean removeEldestEntry(Map.Entry eldest) {
    //Debug.log("delete entity by lrumap");
    if(max == 0) return false;
    return this.size()> max;
  }
}