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.queue;
22
23 import org.apache.qpid.AMQException;
24
25 /**
26 * MessageCleanupException represents the failure to perform reference counting on messages correctly. This should not
27 * happen, but there may be programming errors giving race conditions that cause the reference counting to go wrong.
28 *
29 * <p/><table id="crc"><caption>CRC Card</caption>
30 * <tr><th> Responsibilities <th> Collaborations
31 * <tr><td> Signals that the reference count of a message has gone below zero.
32 * <tr><td> Indicates that a message store has lost a message which is still referenced.
33 * </table>
34 *
35 * @todo Not an AMQP exception as no status code.
36 *
37 * @todo The race conditions leading to this error should be cleaned up, and a runtime exception used instead. If the
38 * message store loses messages, then something is seriously wrong and it would be sensible to terminate the
39 * broker. This may be disguising out of memory errors.
40 */
41 public class MessageCleanupException extends AMQException
42 {
43 public MessageCleanupException(long messageId, AMQException e)
44 {
45 super("Failed to cleanup message with id " + messageId, e);
46 }
47
48 public MessageCleanupException(String message)
49 {
50 super(message);
51 }
52 }
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