org.codehaus.mojo.versions.ordering
Class AbstractVersionComparator

java.lang.Object
  org.codehaus.mojo.versions.ordering.AbstractVersionComparator

All Implemented Interfaces:

Comparator, VersionComparator

Direct Known Subclasses:

MavenVersionComparator, MercuryVersionComparator, NumericVersionComparator

public abstract class AbstractVersionComparator
extends Object
implements VersionComparator

Base class for version comparators.

Since:

1.0-beta-1

Constructor Summary

AbstractVersionComparator()

Method Summary

abstract int	compare(Object o1, Object o2)
boolean	equals(Object obj) Returns true if this object is the same type of comparator as the parameter.
int	getSegmentCount(org.apache.maven.artifact.versioning.ArtifactVersion v) Returns the number of segments specified or specifiable in the supplied artifact version.
int	hashCode() Returns a hash code value for the comparator class.
org.apache.maven.artifact.versioning.ArtifactVersion	incrementSegment(org.apache.maven.artifact.versioning.ArtifactVersion v, int segment) Increment the specified segment of the supplied version.
protected abstract int	innerGetSegmentCount(org.apache.maven.artifact.versioning.ArtifactVersion v)
protected abstract org.apache.maven.artifact.versioning.ArtifactVersion	innerIncrementSegment(org.apache.maven.artifact.versioning.ArtifactVersion v, int segment)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AbstractVersionComparator

public AbstractVersionComparator()

Method Detail

compare

public abstract int compare(Object o1,
                            Object o2)

Specified by:

compare in interface Comparator

getSegmentCount

public final int getSegmentCount(org.apache.maven.artifact.versioning.ArtifactVersion v)

Returns the number of segments specified or specifiable in the supplied artifact version.

Specified by:

getSegmentCount in interface VersionComparator

Parameters:

v - The artifact version to count the segments of.

Returns:

The number of segments.

innerGetSegmentCount

protected abstract int innerGetSegmentCount(org.apache.maven.artifact.versioning.ArtifactVersion v)

incrementSegment

public final org.apache.maven.artifact.versioning.ArtifactVersion incrementSegment(org.apache.maven.artifact.versioning.ArtifactVersion v,
                                                                                   int segment)

Increment the specified segment of the supplied version.

Specified by:

incrementSegment in interface VersionComparator

Parameters:

v - The artifact version to increment.

segment - The segment number to increment.

Returns:

An artifact version with the specified segment incremented.

innerIncrementSegment

protected abstract org.apache.maven.artifact.versioning.ArtifactVersion innerIncrementSegment(org.apache.maven.artifact.versioning.ArtifactVersion v,
                                                                                              int segment)

hashCode

public int hashCode()

Returns a hash code value for the comparator class.

Overrides:

hashCode in class Object

Returns:

the hash code.

equals

public boolean equals(Object obj)

Returns true if this object is the same type of comparator as the parameter.

Specified by:

equals in interface Comparator

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

hashCode(), Hashtable