com.jidesoft.comparator

Class DefaultComparator

java.lang.Object

com.jidesoft.comparator.DefaultComparator

All Implemented Interfaces:

java.util.Comparator<java.lang.Object>

public class DefaultComparator
extends java.lang.Object
implements java.util.Comparator<java.lang.Object>

Badly named, this class compares objects by first converting them to Strings using the toString method.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DefaultComparator() Constructor.

Method Summary

Modifier and Type	Method and Description
int	compare(java.lang.Object o1, java.lang.Object o2) Compares two Objects using the toString() method as the value of each object to compare.
static DefaultComparator	getInstance() Returns ObjectComparator singleton.

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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

DefaultComparator

protected DefaultComparator()

Constructor.

Has protected access to prevent other clients creating instances of the class ... it is stateless so we need only one instance.

Method Detail

getInstance

public static DefaultComparator getInstance()

Returns ObjectComparator singleton.

Returns:

an instance of DefaultComparator.

compare

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

Compares two Objects using the toString() method as the value of each object to compare.

Specified by:

compare in interface java.util.Comparator<java.lang.Object>

Parameters:

o1 - the first object to be compared

o2 - the second object to be compared

Returns:

0 if a and b are equal, less than 0 if a < b, grater than 0 if a > b.