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1   package org.eclipse.aether.version;
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  /**
23   * A version scheme that handles interpretation of version strings to facilitate their comparison.
24   */
25  public interface VersionScheme
26  {
27  
28      /**
29       * Parses the specified version string, for example "1.0".
30       * 
31       * @param version The version string to parse, must not be {@code null}.
32       * @return The parsed version, never {@code null}.
33       * @throws InvalidVersionSpecificationException If the string violates the syntax rules of this scheme.
34       */
35      Version parseVersion( String version )
36          throws InvalidVersionSpecificationException;
37  
38      /**
39       * Parses the specified version range specification, for example "[1.0,2.0)".
40       * 
41       * @param range The range specification to parse, must not be {@code null}.
42       * @return The parsed version range, never {@code null}.
43       * @throws InvalidVersionSpecificationException If the range specification violates the syntax rules of this scheme.
44       */
45      VersionRange parseVersionRange( String range )
46          throws InvalidVersionSpecificationException;
47  
48      /**
49       * Parses the specified version constraint specification, for example "1.0" or "[1.0,2.0),(2.0,)".
50       * 
51       * @param constraint The constraint specification to parse, must not be {@code null}.
52       * @return The parsed version constraint, never {@code null}.
53       * @throws InvalidVersionSpecificationException If the constraint specification violates the syntax rules of this
54       *             scheme.
55       */
56      VersionConstraint parseVersionConstraint( final String constraint )
57          throws InvalidVersionSpecificationException;
58  
59  }