01 package org.apache.qpid.util.concurrent;
02 /*
03 *
04 * Licensed to the Apache Software Foundation (ASF) under one
05 * or more contributor license agreements. See the NOTICE file
06 * distributed with this work for additional information
07 * regarding copyright ownership. The ASF licenses this file
08 * to you under the Apache License, Version 2.0 (the
09 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 *
21 */
22
23
24 import java.util.LinkedList;
25 import java.util.Queue;
26
27 /**
28 * SynchQueue completes the {@link BatchSynchQueueBase} abstract class by providing an implementation of the underlying
29 * queue as a linked list. This uses FIFO ordering for the queue and allows the queue to grow to accomodate more
30 * elements as needed.
31 *
32 * <p/><table id="crc"><caption>CRC Card</caption>
33 * <tr><th> Responsibilities <th> Collaborations
34 * <tr><td> Provide linked list FIFO queue to create a batch synched queue around.
35 * </table>
36 */
37 public class SynchQueue<E> extends BatchSynchQueueBase<E>
38 {
39 /**
40 * Returns an empty queue, implemented as a linked list.
41 *
42 * @return An empty queue, implemented as a linked list.
43 */
44 protected <T> Queue<T> createQueue()
45 {
46 return new LinkedList<T>();
47 }
48 }
|