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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.eclipse.aether.impl;
20  
21  import org.eclipse.aether.RepositorySystem;
22  import org.eclipse.aether.RepositorySystemSession;
23  import org.eclipse.aether.resolution.VersionRangeRequest;
24  import org.eclipse.aether.resolution.VersionRangeResolutionException;
25  import org.eclipse.aether.resolution.VersionRangeResult;
26  
27  /**
28   * Parses and evaluates version ranges encountered in dependency declarations.
29   *
30   * @provisional This type is provisional and can be changed, moved or removed without prior notice.
31   */
32  public interface VersionRangeResolver {
33  
34      /**
35       * Expands a version range to a list of matching versions, in ascending order. For example, resolves "[3.8,4.0)" to
36       * "3.8", "3.8.1", "3.8.2". The returned list of versions is only dependent on the configured repositories and their
37       * contents, the list is not processed by the {@link RepositorySystemSession#getVersionFilter() session's version
38       * filter}.
39       * <p>
40       * The supplied request may also refer to a single concrete version rather than a version range. In this case
41       * though, the result contains simply the (parsed) input version, regardless of the repositories and their contents.
42       *
43       * @param session The repository session, must not be {@code null}.
44       * @param request The version range request, must not be {@code null}.
45       * @return The version range result, never {@code null}.
46       * @throws VersionRangeResolutionException If the requested range could not be parsed. Note that an empty range does
47       *             not raise an exception.
48       * @see RepositorySystem#resolveVersionRange(RepositorySystemSession, VersionRangeRequest)
49       */
50      VersionRangeResult resolveVersionRange(RepositorySystemSession session, VersionRangeRequest request)
51              throws VersionRangeResolutionException;
52  }