Class NumericComparer11

  extended by net.sf.saxon.expr.sort.NumericComparer
      extended by 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.

Michael H. Kay
See Also:
Serialized Form

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


protected NumericComparer11()
Method Detail


public static NumericComparer getInstance()

Copyright (c) 2004-2010 Saxonica Limited. All rights reserved.