net.sf.saxon.sort

Class AlphanumericComparer

java.lang.Object

net.sf.saxon.sort.AlphanumericComparer

All Implemented Interfaces:

Serializable, Comparator

public class AlphanumericComparer
extends Object
implements Comparator, Serializable

A Comparer that treats strings as an alternating sequence of alpha parts and numeric parts. The alpha parts are compared using a base collation supplied as a parameter; the numeric parts are compared numerically. "Numeric" here means a sequence of consecutive ASCII digits 0-9.

Note: this Comparator produces an ordering that is not compatible with equals().

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AlphanumericComparer(Comparator base)

Method Summary

Modifier and Type	Method and Description
int	compare(Object a1, Object a2) 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

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

Constructor Detail

AlphanumericComparer

public AlphanumericComparer(Comparator base)

Method Detail

compare

public int compare(Object a1,
                   Object a2)

Compare two objects.

Specified by:

compare in interface Comparator

Returns:

<0 if a0 if a>b