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Java > Open Source Codes > org > apache > catalina > cluster > io > ListenCallback


1 /*
2  * Copyright 1999,2004 The Apache Software Foundation.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16
17 package org.apache.catalina.cluster.io;
18
19 /**
20  * The listen callback interface is used by the replication system
21  * when data has been received. The interface does not care about
22  * objects and marshalling and just passes the bytes straight through.
23  * @author Filip Hanik
24  * @version $Revision: 1.2 $, $Date: 2004/02/27 14:58:55 $
25  */
26
27
28 public interface ListenCallback
29 {
30     /**
31      * This method is invoked on the callback object to notify it that new data has
32      * been received from one of the cluster nodes.
33      * @param data - the message bytes received from the cluster/replication system
34      */
35     public void messageDataReceived(byte[] data);
36 }
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