net.sf.saxon.sort
Class CodepointCollator

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

All Implemented Interfaces:

Serializable, Comparator, SubstringMatcher

public class CodepointCollator
extends Object
implements Comparator, SubstringMatcher, Serializable

A collating sequence that uses Unicode codepoint ordering

See Also:

Serialized Form

Constructor Summary

CodepointCollator()

Method Summary

int	compare(Object a, Object b) Compare two string objects.
int	compareCS(CharSequence a, CharSequence b) Compare two CharSequence objects.
boolean	contains(String s1, String s2) Test whether one string contains another, according to the rules of the XPath contains() function
boolean	endsWith(String s1, String s2) Test whether one string ends with another, according to the rules of the XPath ends-with() function
static CodepointCollator	getInstance()
boolean	startsWith(String s1, String s2) Test whether one string starts with another, according to the rules of the XPath starts-with() function
String	substringAfter(String s1, String s2) Return the part of a string after a given substring, according to the rules of the XPath substring-after() function
String	substringBefore(String s1, String s2) Return the part of a string before a given substring, according to the rules of the XPath substring-before() function

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

CodepointCollator

public CodepointCollator()

Method Detail

getInstance

public static CodepointCollator getInstance()

compare

public int compare(Object a,
                   Object b)

Compare two string objects.

Specified by:

compare in interface Comparator

Returns:

<0 if a0 if a>b

Throws:

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

compareCS

public int compareCS(CharSequence a,
                     CharSequence b)

Compare two CharSequence objects. This is hand-coded to avoid converting the objects into Strings.

Returns:

<0 if a0 if a>b

Throws:

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

contains

public boolean contains(String s1,
                        String s2)

Test whether one string contains another, according to the rules of the XPath contains() function

Specified by:

contains in interface SubstringMatcher

Parameters:

s1 - the containing string

s2 - the contained string

Returns:

true iff s1 contains s2

endsWith

public boolean endsWith(String s1,
                        String s2)

Test whether one string ends with another, according to the rules of the XPath ends-with() function

Specified by:

endsWith in interface SubstringMatcher

Parameters:

s1 - the containing string

s2 - the contained string

Returns:

true iff s1 ends with s2

startsWith

public boolean startsWith(String s1,
                          String s2)

Test whether one string starts with another, according to the rules of the XPath starts-with() function

Specified by:

startsWith in interface SubstringMatcher

Parameters:

s1 - the containing string

s2 - the contained string

Returns:

true iff s1 starts with s2

substringAfter

public String substringAfter(String s1,
                             String s2)

Return the part of a string after a given substring, according to the rules of the XPath substring-after() function

Specified by:

substringAfter in interface SubstringMatcher

Parameters:

s1 - the containing string

s2 - the contained string

Returns:

the part of s1 that follows the first occurrence of s2

substringBefore

public String substringBefore(String s1,
                              String s2)

Return the part of a string before a given substring, according to the rules of the XPath substring-before() function

Specified by:

substringBefore in interface SubstringMatcher

Parameters:

s1 - the containing string

s2 - the contained string

Returns:

the part of s1 that precedes the first occurrence of s2