: Class Comparer

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 java.lang.Object

A Comparer used for comparing keys

Constructor Summary

Comparer()

Method Summary

abstract int	compare(java.lang.Object a, java.lang.Object b) Compare two objects.
Comparer	setDataType(java.lang.String dataTypeURI, java.lang.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(java.lang.Object a,
                            java.lang.Object b)

Compare two objects.

Returns:

<0 if a0 if a>b

Throws:

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

setDataType

public Comparer setDataType(java.lang.String dataTypeURI,
                            java.lang.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