org.codehaus.mojo.versions.ordering
Class NumericVersionComparator

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

All Implemented Interfaces:

Comparator

public class NumericVersionComparator
extends Object
implements Comparator

A comparator which will compare all segments of a dot separated version string as numbers if possible, i.e. 1.3.34 > 1.3.9 and 1.3.4.3.2.34 > 1.3.4.3.2.9 and 1.3.4.3.2.34 > 1.3.4.3.2.34-SNAPSHOT

Since:

1.0-alpha-3

Author:

Stephen Connolly

Constructor Summary

NumericVersionComparator()

Method Summary

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	hashCode() Returns a hash code value for the comparator class.

Methods inherited from class java.lang.Object

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

Constructor Detail

NumericVersionComparator

public NumericVersionComparator()

Method Detail

compare

public int compare(Object o1,
                   Object o2)

Specified by:

compare in interface Comparator

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