1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.repository.legacy.resolver.conflict;
20
21 import org.apache.maven.artifact.resolver.ResolutionNode;
22
23 /**
24 * Determines which version of an artifact to use when there are conflicting declarations.
25 *
26 * @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
27 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
28 */
29 public interface ConflictResolver {
30 String ROLE = ConflictResolver.class.getName();
31
32 /**
33 * Determines which of the specified versions of an artifact to use when there are conflicting declarations.
34 *
35 * @param node1 the first artifact declaration
36 * @param node2 the second artifact declaration
37 * @return the artifact declaration to use: <code>node1</code>; <code>node2</code>; or <code>null</code>if
38 * this conflict cannot be resolved
39 * @since 3.0
40 */
41 ResolutionNode resolveConflict(ResolutionNode node1, ResolutionNode node2);
42 }