com.ibm.bluej.util.common

Class FirstPairComparator

java.lang.Object

com.ibm.bluej.util.common.FirstPairComparator

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator<Pair>

public class FirstPairComparator
extends java.lang.Object
implements java.util.Comparator<Pair>, java.io.Serializable

orders Pairs based on their first element

Author:

partha

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
FirstPairComparator() default constructor that assumes the first element is Comparable
FirstPairComparator(java.util.Comparator comparator) constructor that takes a Comparator where null means treat the elements as Comparable

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(Pair p1, Pair p2)
void	setReverseOrdering() reverses the order

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

FirstPairComparator

public FirstPairComparator()

default constructor that assumes the first element is Comparable

FirstPairComparator

public FirstPairComparator(java.util.Comparator comparator)

constructor that takes a Comparator where null means treat the elements as Comparable

Parameters:

comp -

Method Detail

setReverseOrdering

public void setReverseOrdering()

reverses the order

compare

public int compare(Pair p1,
          Pair p2)

Specified by:

compare in interface java.util.Comparator<Pair>