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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.apache.maven.api;
20  
21  import org.apache.maven.api.annotations.Experimental;
22  import org.apache.maven.api.annotations.Nonnull;
23  import org.apache.maven.api.annotations.Nullable;
24  
25  /**
26   * A range of versions.
27   *
28   * {@code VersionConstraint} objects are created using the
29   * {@linkplain org.apache.maven.api.services.VersionParser} service.
30   *
31   * @see Version
32   * @see VersionConstraint
33   * @see org.apache.maven.api.services.VersionParser#parseVersionRange(String)
34   * @see org.apache.maven.api.Session#parseVersionRange(String)
35   * @since 4.0.0
36   */
37  @Experimental
38  public interface VersionRange {
39      /**
40       * Determines whether the specified version is contained within this range.
41       *
42       * @param version the version to test, must not be {@code null}
43       * @return {@code true} if this range contains the specified version, {@code false} otherwise
44       */
45      boolean contains(@Nonnull Version version);
46  
47      /**
48       * Returns the upper boundary of this range, or {@code null} if none.
49       */
50      @Nullable
51      Boundary getUpperBoundary();
52  
53      /**
54       * Returns the lower boundary of this range, or {@code null} if none.
55       */
56      @Nullable
57      Boundary getLowerBoundary();
58  
59      /**
60       * Returns a string representation of this version range
61       * @return the string representation of this version range
62       */
63      @Nonnull
64      String asString();
65  
66      /**
67       * Represents range boundary.
68       */
69      interface Boundary {
70          /**
71           * The bounding version.
72           */
73          Version getVersion();
74  
75          /**
76           * Returns {@code true} if version is included of the range.
77           */
78          boolean isInclusive();
79      }
80  }