001    package org.apache.maven.repository.metadata;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *  http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    /**
023     *  MetadataGraph edge selection policy. Complements
024     *  GraphConflictResolver by being injected into it
025     *
026     * @author <a href="mailto:oleg@codehaus.org">Oleg Gusakov</a>
027     *
028     */
029    
030    public interface GraphConflictResolutionPolicy
031    {
032        String ROLE = GraphConflictResolutionPolicy.class.getName();
033    
034        MetadataGraphEdge apply( MetadataGraphEdge e1, MetadataGraphEdge e2 );
035    }