ix.util
Class ObjectComparator

java.lang.Object
  ix.util.ObjectComparator

All Implemented Interfaces:

java.util.Comparator

Direct Known Subclasses:

KeyValueTable.LexicographicComparator, KeyValueTable.PatternObjectComparator

public class ObjectComparator
extends java.lang.Object
implements java.util.Comparator

Provides a total ordering for arbitrary objects. It should be consistent with equals.

Constructor Summary

ObjectComparator()

Method Summary

int	compare(java.lang.Object a, java.lang.Object b) Returns an int < 0, == 0, or > 0 depending on whether the first object is less than, equal to, or greater than the second.
protected int	compareComparable(java.lang.Comparable a, java.lang.Comparable b)
protected int	compareLists(java.util.List a, java.util.List b)
protected int	compareNumbers(java.lang.Number a, java.lang.Number b)
protected int	compareSymbol(java.lang.Object a, java.lang.Object b)
protected int	defaultCompare(java.lang.Object a, java.lang.Object b)

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

Constructor Detail

ObjectComparator

public ObjectComparator()

Method Detail

compare

public int compare(java.lang.Object a,
                   java.lang.Object b)

Returns an int < 0, == 0, or > 0 depending on whether the first object is less than, equal to, or greater than the second.

Specified by:

compare in interface java.util.Comparator

Throws:

java.lang.ClassCastException - if the objects cannot be compared.

compareSymbol

protected int compareSymbol(java.lang.Object a,
                            java.lang.Object b)

compareNumbers

protected int compareNumbers(java.lang.Number a,
                             java.lang.Number b)

compareLists

protected int compareLists(java.util.List a,
                           java.util.List b)

compareComparable

protected int compareComparable(java.lang.Comparable a,
                                java.lang.Comparable b)

defaultCompare

protected int defaultCompare(java.lang.Object a,
                             java.lang.Object b)