Queue


1   /* Copyright 1997 - 2003 Quadcap Software.  All rights reserved.
2    *
3    * This software is distributed under the Quadcap Free Software License.
4    * This software may be used or modified for any purpose, personal or
5    * commercial.  Open Source redistributions are permitted.  Commercial
6    * redistribution of larger works derived from, or works which bundle
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38  
39  package com.quadcap.util;
40  
41  /**
42   * This class implements a thread-safe queue.
43   *
44   * @author Stan Bailes
45   */
46  public class Queue extends DList {
47      public Queue() {
48      }
49  
50      public synchronized void push(Object   obj) {
51      addBack(obj);
52      }
53  
54      public synchronized Object   pop() {
55      try {
56          return popFront();
57      } catch (ListException e) {
58         RuntimeException   re = new RuntimeException  (e.toString());
59         re.fillInStackTrace();
60         throw re;
61      }
62      }
63  }
64
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