Class TextComparer

java.lang.Object

net.sf.saxon.sort.TextComparer

All Implemented Interfaces:

Serializable, Comparator

public class TextComparer
extends Object
implements Comparator, 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

Constructors

Constructor	Description
TextComparer(Comparator collator)

Method Summary

Modifier and Type	Method	Description
int	compare(Object a, Object b)	Compare two Items by converting them to strings and comparing the string values.

Methods inherited from class Object

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

Methods inherited from interface Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

TextComparer

public TextComparer(Comparator collator)

Method Details

compare

public int compare(Object a,
 Object b)
            throws ClassCastException

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

Specified by:

compare in interface Comparator

Parameters:

a - the first Item to be compared.

b - the second Item to be compared.

Returns:

invalid input: '<'0 if ainvalid input: '<'b, 0 if a=b, >0 if a>b

Throws:

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