1 package org.apache.maven.repository.metadata;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import org.apache.maven.artifact.ArtifactScopeEnum;
23
24 /**
25 * Resolves conflicts in the supplied dependency graph.
26 * Different implementations will implement different conflict resolution policies.
27 *
28 * @author <a href="mailto:oleg@codehaus.org">Oleg Gusakov</a>
29 * @version $Id: GraphConflictResolver.java 958295 2010-06-26 23:16:18Z hboutemy $
30 */
31 public interface GraphConflictResolver
32 {
33 String ROLE = GraphConflictResolver.class.getName();
34
35 /**
36 * Cleanses the supplied graph by leaving only one directed versioned edge\
37 * between any two nodes, if multiple exists. Uses scope relationships, defined
38 * in <code>ArtifactScopeEnum</code>
39 *
40 * @param graph the "dirty" graph to be simplified via conflict resolution
41 * @param scope scope for which the graph should be resolved
42 *
43 * @return resulting "clean" graph for the specified scope
44 *
45 * @since 3.0
46 */
47 MetadataGraph resolveConflicts( MetadataGraph graph, ArtifactScopeEnum scope )
48 throws GraphConflictResolutionException;
49 }