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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.version;
20  
21  /**
22   * A version scheme that handles interpretation of version strings to facilitate their comparison.
23   */
24  public interface VersionScheme {
25  
26      /**
27       * Parses the specified version string, for example "1.0".
28       *
29       * @param version The version string to parse, must not be {@code null}.
30       * @return The parsed version, never {@code null}.
31       * @throws InvalidVersionSpecificationException If the string violates the syntax rules of this scheme.
32       */
33      Version parseVersion(String version) throws InvalidVersionSpecificationException;
34  
35      /**
36       * Parses the specified version range specification, for example "[1.0,2.0)".
37       *
38       * @param range The range specification to parse, must not be {@code null}.
39       * @return The parsed version range, never {@code null}.
40       * @throws InvalidVersionSpecificationException If the range specification violates the syntax rules of this scheme.
41       */
42      VersionRange parseVersionRange(String range) throws InvalidVersionSpecificationException;
43  
44      /**
45       * Parses the specified version constraint specification, for example "1.0" or "[1.0,2.0),(2.0,)".
46       *
47       * @param constraint The constraint specification to parse, must not be {@code null}.
48       * @return The parsed version constraint, never {@code null}.
49       * @throws InvalidVersionSpecificationException If the constraint specification violates the syntax rules of this
50       *             scheme.
51       */
52      VersionConstraint parseVersionConstraint(String constraint) throws InvalidVersionSpecificationException;
53  }