01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.server.util;
22
23 import java.util.concurrent.ConcurrentLinkedQueue;
24
25 public class ConcurrentLinkedQueueNoSize<E> extends ConcurrentLinkedQueue<E>
26 {
27 public int size()
28 {
29 if (isEmpty())
30 {
31 return 0;
32 }
33 else
34 {
35 return 1;
36 }
37 }
38 }
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