Class RankComparator

java.lang.Object
  |
  +--RankComparator

All Implemented Interfaces:

java.util.Comparator

public class RankComparator

extends java.lang.Object

implements java.util.Comparator

A class that implements the java.util.Comparator interface to compare Items based on rank

Method Summary

int	compare(java.lang.Object o1, java.lang.Object o2) Compares its two arguments for ordering them on rank.
static RankComparator	getInstance() Returns the unique instance of this class.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Method Detail

getInstance

public static RankComparator getInstance()

Returns the unique instance of this class.

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)
            throws java.lang.ClassCastException

Compares its two arguments for ordering them on rank.

Specified by:

compare in interface java.util.Comparator

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

Throws:

java.lang.ClassCastException - Thrown if one of the arguments is not a transition instance.