1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.codehaus.activemq.util;
19
20 /***
21 * A simple callback object used by the
22 * {@link org.codehaus.activemq.util.TransactionTemplate}
23 * and {@link org.codehaus.activemq.util.ExceptionTemplate}
24 objects to provide automatic transactional or exception handling blocks.
25 *
26 * @version $Revision: 1.1 $
27 */
28 public interface Callback {
29
30 /***
31 * Executes some piece of code within a transaction
32 * performing a commit if there is no exception thrown
33 * else a rollback is performed
34 *
35 * @throws Throwable
36 */
37 public void execute() throws Throwable;
38 }