Package net.sf.saxon.sort

Class DescendingComparer

java.lang.Object

net.sf.saxon.sort.DescendingComparer

All Implemented Interfaces:

Serializable, Comparator

public class DescendingComparer
extends Object
implements Comparator, Serializable

A Comparer used for comparing descending keys. This simply returns the inverse of the result delivered by the base comparer.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DescendingComparer(Comparator base)

Method Summary

Modifier and Type	Method	Description
int	compare(Object a, Object b)	Compare two objects.

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, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

DescendingComparer

public DescendingComparer(Comparator base)

Method Details

compare

public int compare(Object a,
 Object b)

Compare two objects.

Specified by:

compare in interface Comparator

Returns:

invalid input: '<'0 if ainvalid input: '<'b, 0 if a=b, >0 if a>b

Throws:

ClassCastException - if the objects are of the wrong type for this Comparer