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1   package org.apache.maven.execution;
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.project.MavenProject;
23  
24  /**
25   * Instances of this interface retrieve and store data for the --resume / -r feature. This data is used to ensure newer
26   * builds of the same project, that have the -r command-line flag, skip successfully built projects during earlier
27   * invocations of Maven.
28   */
29  public interface BuildResumptionDataRepository
30  {
31      /**
32       * Persists any data needed to resume the build at a later point in time, using a new Maven invocation. This method
33       * may also decide it is not needed or meaningful to persist such data, and return <code>false</code> to indicate
34       * so.
35       *
36       * @param rootProject The root project that is being built.
37       * @param buildResumptionData Information needed to resume the build.
38       * @throws BuildResumptionPersistenceException When an error occurs while persisting data.
39       */
40      void persistResumptionData( MavenProject rootProject, BuildResumptionData buildResumptionData )
41              throws BuildResumptionPersistenceException;
42  
43      /**
44       * Uses previously stored resumption data to enrich an existing execution request.
45       * @param request The execution request that will be enriched.
46       * @param rootProject The root project that is being built.
47       */
48      void applyResumptionData( MavenExecutionRequest request, MavenProject rootProject );
49  
50      /**
51       * Removes previously stored resumption data.
52       * @param rootProject The root project that is being built.
53       */
54      void removeResumptionData( MavenProject rootProject );
55  
56  }