| /* |
| * Copyright 1999,2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.catalina.cluster.io; |
| |
| import org.apache.catalina.cluster.tcp.ClusterData ; |
| |
| /** |
| * The listen callback interface is used by the replication system |
| * when data has been received. The interface does not care about |
| * objects and marshalling and just passes the bytes straight through. |
| * @author Filip Hanik |
| * @author Peter Rossbach |
| * @version $Revision$, $Date$ |
| */ |
| public interface ListenCallback |
| { |
| /** |
| * This method is invoked on the callback object to notify it that new data has |
| * been received from one of the cluster nodes. |
| * @param data - the message bytes received from the cluster/replication system |
| */ |
| public void messageDataReceived(ClusterData data); |
| |
| /** receiver must be send ack |
| */ |
| public boolean isSendAck() ; |
| |
| /** send ack |
| * |
| */ |
| public void sendAck() throws java.io.IOException ; |
| |
| } |