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
22 package org.apache.qpid.server;
23
24 import java.io.IOException;
25
26 import javax.management.JMException;
27
28 /**
29 * The managed interface exposed to allow management of channels.
30 * @author Bhupendra Bhardwaj
31 * @version 0.1
32 */
33 public interface ManagedChannel
34 {
35 static final String TYPE = "Channel";
36
37 /**
38 * Tells whether the channel is transactional.
39 * @return true if the channel is transactional.
40 * @throws IOException
41 */
42 boolean isTransactional() throws IOException;
43
44 /**
45 * Tells the number of unacknowledged messages in this channel.
46 * @return number of unacknowledged messages.
47 * @throws IOException
48 */
49 int getUnacknowledgedMessageCount() throws IOException;
50
51
52 //********** Operations *****************//
53
54 /**
55 * Commits the transactions if the channel is transactional.
56 * @throws IOException
57 * @throws JMException
58 */
59 void commitTransactions() throws IOException, JMException;
60
61 /**
62 * Rollsback the transactions if the channel is transactional.
63 * @throws IOException
64 * @throws JMException
65 */
66 void rollbackTransactions() throws IOException, JMException;
67
68 }
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