1 package org.apache.maven.repository.legacy.resolver.conflict;
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.resolver.ResolutionNode;
23
24 /**
25 * Determines which version of an artifact to use when there are conflicting declarations.
26 *
27 * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
28 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
29 */
30 public interface ConflictResolver
31 {
32 String ROLE = ConflictResolver.class.getName();
33
34 /**
35 * Determines which of the specified versions of an artifact to use when there are conflicting declarations.
36 *
37 * @param node1 the first artifact declaration
38 * @param node2 the second artifact declaration
39 * @return the artifact declaration to use: <code>node1</code>; <code>node2</code>; or <code>null</code>if
40 * this conflict cannot be resolved
41 * @since 3.0
42 */
43 ResolutionNode resolveConflict( ResolutionNode node1, ResolutionNode node2 );
44 }