org.conqat.lib.commons.string

Class FastStringComparator

java.lang.Object

org.conqat.lib.commons.string.FastStringComparator

All Implemented Interfaces:

java.util.Comparator<java.lang.String>

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

This is a more efficient implementation of a String comparator. While the comparison order is stable, there is no guarantee that is is lexicographic. The additional speed is gained by using the hash code as primary comparison attribute. As the hash code is cached by the string object, its access is very cheap even for long strings.

Author:

hummelb

Field Summary

Fields

Modifier and Type	Field and Description
static FastStringComparator	INSTANCE Singleton instance.

Constructor Summary

Constructors

Constructor and Description
FastStringComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(java.lang.String s0, java.lang.String s1)

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

Field Detail

INSTANCE

public static final FastStringComparator INSTANCE

Singleton instance.

Constructor Detail

FastStringComparator

public FastStringComparator()

Method Detail

compare

public int compare(java.lang.String s0,
                   java.lang.String s1)

Specified by:

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