01 /*
02 *
03 * Licensed to the Apache Software Foundation (ASF) under one
04 * or more contributor license agreements. See the NOTICE file
05 * distributed with this work for additional information
06 * regarding copyright ownership. The ASF licenses this file
07 * to you under the Apache License, Version 2.0 (the
08 * "License"); you may not use this file except in compliance
09 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 */
21 package org.apache.qpid.exchange;
22
23 import org.apache.qpid.framing.AMQShortString;
24
25 /**
26 * Defines the names of the standard AMQP exchanges that every AMQP broker should provide. These exchange names
27 * and type are given in the specification.
28 *
29 * <p/><table id="crc"><caption>CRC Card</caption>
30 * <tr><th> Responsibilities <th> Collaborations
31 * <tr><td> Defines the standard AMQP exchange names.
32 * <tr><td> Defines the standard AMQP exchange types.
33 * </table>
34 *
35 * @todo A type safe enum, might be more appropriate for the exchange types.
36 */
37 public class ExchangeDefaults
38 {
39 /** The default direct exchange, which is a special internal exchange that cannot be explicitly bound to. */
40 public static final AMQShortString DEFAULT_EXCHANGE_NAME = new AMQShortString("<<default>>");
41
42 /** The pre-defined topic exchange, the broker SHOULD provide this. */
43 public static final AMQShortString TOPIC_EXCHANGE_NAME = new AMQShortString("amq.topic");
44
45 /** Defines the identifying type name of topic exchanges. */
46 public static final AMQShortString TOPIC_EXCHANGE_CLASS = new AMQShortString("topic");
47
48 /** The pre-defined direct exchange, the broker MUST provide this. */
49 public static final AMQShortString DIRECT_EXCHANGE_NAME = new AMQShortString("amq.direct");
50
51 /** Defines the identifying type name of direct exchanges. */
52 public static final AMQShortString DIRECT_EXCHANGE_CLASS = new AMQShortString("direct");
53
54 /** The pre-defined headers exchange, the specification does not say this needs to be provided. */
55 public static final AMQShortString HEADERS_EXCHANGE_NAME = new AMQShortString("amq.match");
56
57 /** Defines the identifying type name of headers exchanges. */
58 public static final AMQShortString HEADERS_EXCHANGE_CLASS = new AMQShortString("headers");
59
60 /** The pre-defined fanout exchange, the boker MUST provide this. */
61 public static final AMQShortString FANOUT_EXCHANGE_NAME = new AMQShortString("amq.fanout");
62
63 /** Defines the identifying type name of fanout exchanges. */
64 public static final AMQShortString FANOUT_EXCHANGE_CLASS = new AMQShortString("fanout");
65 }
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