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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,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.index;
20  
21  import java.util.Map;
22  
23  /**
24   * A grouping criteria for grouped searches.
25   *
26   * @see Indexer#searchGrouped(GroupedSearchRequest)
27   * @author Tamas Cservenak
28   */
29  public interface Grouping {
30  
31      /**
32       * Adds a single ArticatInfo to the result map.
33       *
34       * @param result
35       * @param artifactInfo
36       * @return true, if the Grouping changed by addition of new artifactInfo
37       */
38      boolean addArtifactInfo(Map<String, ArtifactInfoGroup> result, ArtifactInfo artifactInfo);
39  }