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Java > Open Source Codes > org > apache > activemq > command > LastPartialCommand


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.activemq.command;
19
20 import org.apache.activemq.state.CommandVisitor;
21
22 /**
23  * Represents the end marker of a stream of {@link PartialCommand} instances.
24  *
25  * @openwire:marshaller code="61"
26  * @version $Revision: 426366 $
27  */
28 public class LastPartialCommand extends PartialCommand {
29
30     public static final byte DATA_STRUCTURE_TYPE = CommandTypes.PARTIAL_LAST_COMMAND;
31
32     public LastPartialCommand() {
33     }
34
35     public byte getDataStructureType() {
36         return DATA_STRUCTURE_TYPE;
37     }
38
39     public Response visit(CommandVisitor visitor) throws Exception JavaDoc {
40         throw new IllegalStateException JavaDoc("The transport layer should filter out LastPartialCommand instances but received: " + this);
41     }
42
43     /**
44      * Lets copy across any transient fields from this command
45      * to the complete command when it is unmarshalled on the other end
46      *
47      * @param completeCommand the newly unmarshalled complete command
48      */
49     public void configure(Command completeCommand) {
50         // copy across the transient properties added by the low level transport
51 completeCommand.setFrom(getFrom());
52     }
53 }
54
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