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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership. The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with 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  
19  package org.apache.river.discovery;
20  
21  /**
22   * Interface implemented by all discovery format provider classes, which is
23   * used by the {@link Discovery} class to identify format providers available
24   * via resource, as described in the documentation for the
25   * {@link Discovery#getProtocol2(ClassLoader)} method.  Format provider classes
26   * should not implement this interface directly, but should instead implement
27   * at least one of the format provider sub-interfaces extending this
28   * interface--{@link MulticastRequestEncoder}, {@link MulticastRequestDecoder},
29   * {@link MulticastAnnouncementEncoder}, {@link MulticastAnnouncementDecoder},
30   * {@link UnicastDiscoveryClient} and {@link UnicastDiscoveryServer}--which
31   * declare methods for the various provider operations, such as encoding or
32   * decoding discovery data.
33   *
34   * @author Sun Microsystems, Inc.
35   * @since 2.0
36   */
37  public interface DiscoveryFormatProvider {
38  
39      /**
40       * Returns the name of the format implemented by this provider.
41       *
42       * @return the name of the format implemented by this provider
43       */
44      String getFormatName();
45  }