limitedsynchronizedlong.java

来自「采用JAVA开发」· Java 代码 · 共 37 行

package com.gctech.util;

import EDU.oswego.cs.dl.util.concurrent.SynchronizedLong;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: gctech</p>
 * @author 王红宝
 * @version $Id: LimitedSynchronizedLong.java,v 1.1.1.1 2004/04/21 09:30:42 wanghb Exp $
 */

public class LimitedSynchronizedLong extends SynchronizedLong {
  long minValue;
  long maxValue;
  public LimitedSynchronizedLong(long val, long minValue, long maxValue) {
    super(val);
    this.maxValue = minValue;
    this.maxValue = maxValue;
  }
  /**
   * Increment the value.
   * @return the new value
   **/
  public long increment() {
    synchronized (lock_) {
      value_++;
      if ( value_ >= maxValue ){
        value_ = minValue;
      }
      return value_;
    }
  }


}