net.sf.saxon.sort

Interface SubstringMatcher

All Superinterfaces:
Serializable, StringCollator
Known Implementing Classes:
CodepointCollator, DotNetComparator, RuleBasedSubstringMatcher

public interface SubstringMatcher
extends StringCollator

This interface is implemented by a collation that is capable of supporting the XPath functions that require matching of a substring: namely contains(), starts-with, ends-with, substring-before, and substring-after.

Method Summary

boolean
comparesEqual(String s1, String s2)
Test whether one string is equal to another, according to the rules of the XPath compare() function.
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
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 interface net.sf.saxon.sort.StringCollator

compareStrings, getCollationKey

Method Details

comparesEqual

public boolean comparesEqual(String s1,
                             String s2)
Test whether one string is equal to another, according to the rules of the XPath compare() function. The result is true if and only if the compareStrings() method returns zero: but the implementation may be more efficient than calling compare and testing the result for zero
Parameters:
s1 - the first string
s2 - the second string
Returns:
true iff s1 equals s2

contains

public boolean contains(String s1,
                        String s2)
Test whether one string contains another, according to the rules of the XPath contains() function
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
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
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
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
Parameters:
s1 - the containing string
s2 - the contained string
Returns:
the part of s1 that precedes the first occurrence of s2