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 */ 017package org.apache.activemq.command; 018 019import org.apache.activemq.state.CommandVisitor; 020 021/** 022 * Represents the end marker of a stream of {@link PartialCommand} instances. 023 * 024 * @openwire:marshaller code="61" 025 * 026 */ 027public class LastPartialCommand extends PartialCommand { 028 029 public static final byte DATA_STRUCTURE_TYPE = CommandTypes.PARTIAL_LAST_COMMAND; 030 031 public LastPartialCommand() { 032 } 033 034 public byte getDataStructureType() { 035 return DATA_STRUCTURE_TYPE; 036 } 037 038 public Response visit(CommandVisitor visitor) throws Exception { 039 throw new IllegalStateException("The transport layer should filter out LastPartialCommand instances but received: " + this); 040 } 041 042 /** 043 * Lets copy across any transient fields from this command 044 * to the complete command when it is unmarshalled on the other end 045 * 046 * @param completeCommand the newly unmarshalled complete command 047 */ 048 public void configure(Command completeCommand) { 049 // copy across the transient properties added by the low level transport 050 completeCommand.setFrom(getFrom()); 051 } 052}