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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.updater;
20  
21  import org.apache.lucene.store.Directory;
22  import org.apache.maven.index.context.IndexingContext;
23  
24  /**
25   * Ability to spread index updates to (possible) plugin receivers. (NEXUS-2644) Implement this as Plexus component to
26   * add new behaviour.
27   *
28   * @author Toni Menzel
29   */
30  public interface IndexUpdateSideEffect {
31  
32      /**
33       * Given a full or partial (see context partial parameter) lucene index (directory + context it has been integrated
34       * into), this can let other participants (implementations of this type) know about the update. Any activity should
35       * not influence the callers further process (not fail via unchecked exception) if possible. Implementations are
36       * most likely optional plugins.
37       *
38       * @param directory - the directory to merge
39       * @param context - original context
40       * @param partial - this update is partial (true) or a full update (false).
41       */
42      void updateIndex(Directory directory, IndexingContext context, boolean partial);
43  }