001    package org.apache.archiva.indexer.merger;
002    /*
003     * Licensed to the Apache Software Foundation (ASF) under one
004     * or more contributor license agreements.  See the NOTICE file
005     * distributed with this work for additional information
006     * regarding copyright ownership.  The ASF licenses this file
007     * to you under the Apache License, Version 2.0 (the
008     * "License"); you may not use this file except in compliance
009     * with the License.  You may obtain a copy of the License at
010     *
011     *   http://www.apache.org/licenses/LICENSE-2.0
012     *
013     * Unless required by applicable law or agreed to in writing,
014     * software distributed under the License is distributed on an
015     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016     * KIND, either express or implied.  See the License for the
017     * specific language governing permissions and limitations
018     * under the License.
019     */
020    
021    import org.apache.maven.index.context.IndexingContext;
022    
023    import java.util.Collection;
024    
025    /**
026     * @author Olivier Lamy
027     * @since 1.4-M2
028     */
029    public interface IndexMerger
030    {
031        /**
032         * @param indexMergerRequest
033         * @return a temporary directory with a merge index (directory marked deleteOnExit)
034         * @throws IndexMergerException
035         */
036        IndexingContext buildMergedIndex( IndexMergerRequest indexMergerRequest )
037            throws IndexMergerException;
038    
039        void cleanTemporaryGroupIndex( TemporaryGroupIndex temporaryGroupIndex );
040    
041        Collection<TemporaryGroupIndex> getTemporaryGroupIndexes();
042    }