net.sf.saxon.expr.sort
Class NumericComparer11

java.lang.Object
  net.sf.saxon.expr.sort.NumericComparer
      net.sf.saxon.expr.sort.NumericComparer11

All Implemented Interfaces:

Serializable, AtomicComparer

public class NumericComparer11
extends NumericComparer

A Comparer used for comparing sort keys when data-type="number". The items to be compared are converted to numbers, and the numbers are then compared directly. NaN values compare equal to each other, and equal to an empty sequence, but less than anything else.

This class is used in XSLT only, so there is no need to handle XQuery's "empty least" vs "empty greatest" options.

Author:

Michael H. Kay

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sf.saxon.expr.sort.NumericComparer

converter

Constructor Summary

protected

NumericComparer11()

Method Summary

static NumericComparer

getInstance()

Methods inherited from class net.sf.saxon.expr.sort.NumericComparer

compareAtomicValues, comparesEqual, getCollator, getComparisonKey, provideContext

Methods inherited from class java.lang.Object

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

Constructor Detail

NumericComparer11

protected NumericComparer11()

Method Detail

getInstance

public static NumericComparer getInstance()