net.sf.saxon.sort
Class TextComparer

java.lang.Object
  net.sf.saxon.sort.TextComparer

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator

public class TextComparer
extends java.lang.Object
implements java.util.Comparator, java.io.Serializable

A Comparer used for comparing sort keys when data-type="text". The items to be compared are converted to strings, and the strings are then compared using an underlying collator

Author:

Michael H. Kay

See Also:

Serialized Form

Constructor Summary

TextComparer(java.util.Comparator collator)

Method Summary

int	compare(java.lang.Object a, java.lang.Object b) Compare two Items by converting them to strings and comparing the string values.

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

equals

Constructor Detail

TextComparer

public TextComparer(java.util.Comparator collator)

Method Detail

compare

public int compare(java.lang.Object a,
                   java.lang.Object b)
            throws java.lang.ClassCastException

Compare two Items by converting them to strings and comparing the string values.

Specified by:

compare in interface java.util.Comparator

Parameters:

a - the first Item to be compared.

b - the second Item to be compared.

Returns:

<0 if a0 if a>b

Throws:

java.lang.ClassCastException - if the objects are not Items, or are items that cannot be convered to strings (e.g. QNames)