001    /**
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.activemq.transport.udp;
018    
019    import java.io.IOException;
020    import java.net.SocketAddress;
021    
022    import org.apache.activemq.Service;
023    import org.apache.activemq.command.Command;
024    import org.apache.activemq.transport.reliable.ReplayBuffer;
025    import org.apache.activemq.transport.reliable.Replayer;
026    
027    /**
028     *
029     * 
030     */
031    public interface CommandChannel extends Replayer, Service {
032    
033        Command read() throws IOException;
034    
035        void write(Command command, SocketAddress address) throws IOException;
036    
037        int getDatagramSize();
038    
039        /**
040         * Sets the default size of a datagram on the network.
041         */
042        void setDatagramSize(int datagramSize);
043    
044        DatagramHeaderMarshaller getHeaderMarshaller();
045    
046        void setHeaderMarshaller(DatagramHeaderMarshaller headerMarshaller);
047    
048        void setTargetAddress(SocketAddress address);
049    
050        void setReplayAddress(SocketAddress address);
051    
052        void setReplayBuffer(ReplayBuffer replayBuffer);
053        
054        public int getReceiveCounter();
055    
056    }