/
AbstractVersionComparator.java
77 lines (68 loc) · 2.22 KB
/
AbstractVersionComparator.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
package org.codehaus.mojo.versions.ordering;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import org.apache.maven.artifact.versioning.ArtifactVersion;
/**
* Base class for version comparators.
*
* @since 1.0-beta-1
*/
public abstract class AbstractVersionComparator
implements VersionComparator
{
@Override
public abstract int compare( ArtifactVersion o1, ArtifactVersion o2 );
@Override
public final int getSegmentCount( ArtifactVersion v )
{
if ( v == null )
{
return 0;
}
if ( VersionComparators.isSnapshot( v ) )
{
return innerGetSegmentCount( VersionComparators.stripSnapshot( v ) );
}
return innerGetSegmentCount( v );
}
protected abstract int innerGetSegmentCount( ArtifactVersion v );
/**
* Returns a hash code value for the comparator class.
*
* @return the hash code.
*/
@Override
public int hashCode()
{
return getClass().hashCode();
}
/**
* Returns true if this object is the same type of comparator as the parameter.
*
* @param obj the reference object with which to compare.
* @return <code>true</code> if this object is the same as the obj argument; <code>false</code> otherwise.
* @see #hashCode()
* @see java.util.Hashtable
*/
@Override
public boolean equals( Object obj )
{
return obj == this || ( obj != null && getClass().equals( obj.getClass() ) );
}
}