package org.apache.maven.index;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0    
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.Map;

/**
 * A grouping criteria for grouped searches.
 * 
 * @see Indexer#searchGrouped(GroupedSearchRequest)
 * @author Tamas Cservenak
 */
public interface Grouping
{

    /**
     * Adds a single ArticatInfo to the result map.
     * 
     * @param result
     * @param artifactInfo
     * @return true, if the Grouping changed by addition of new artifactInfo
     */
    boolean addArtifactInfo( Map<String, ArtifactInfoGroup> result, ArtifactInfo artifactInfo );

}