001    /**
002     * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.search;
016    
017    import java.util.Set;
018    
019    /**
020     * @author Michael C. Han
021     */
022    public interface IndexerRegistry {
023    
024            public <T> Indexer<T> getIndexer(Class<T> clazz);
025    
026            public <T> Indexer<T> getIndexer(String className);
027    
028            public Set<Indexer<?>> getIndexers();
029    
030            public <T> Indexer<T> nullSafeGetIndexer(Class<T> clazz);
031    
032            public <T> Indexer<T> nullSafeGetIndexer(String className);
033    
034            public void register(Indexer<?> indexer);
035    
036            public void unregister(Indexer<?> indexer);
037    
038            public void unregister(String className);
039    
040    }