com.icl.saxon.sort

Class Comparer

java.lang.Object

com.icl.saxon.sort.Comparer

Direct Known Subclasses:

DescendingComparer, DoubleComparer, LowercaseFirstComparer, TextComparer, UppercaseFirstComparer

public abstract class Comparer
extends Object

A Comparer used for comparing keys

Constructor Summary

Constructors

Constructor and Description
Comparer()

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	compare(Object a, Object b) Compare two objects.
Comparer	setDataType(String dataTypeURI, String dataTypeLocalName) Set data type.
Comparer	setOrder(boolean isAscending) Set order.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Comparer

public Comparer()

Method Detail

compare

public abstract int compare(Object a,
          Object b)

Compare two objects.

Returns:

<0 if a0 if a>b

Throws:

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

setDataType

public Comparer setDataType(String dataTypeURI,
                   String dataTypeLocalName)

Set data type. The comparer has the option of returning a different comparer once it knows the data type

setOrder

public Comparer setOrder(boolean isAscending)

Set order. The comparer has the option of returning a different comparer