com.novell.xml.xpath
Interface FunctionLibrary

All Known Implementing Classes:

ExtensibleFunctionLibrary, FunctionLibraryImpl, StylesheetParser, XsltFunctionLibrary

public interface FunctionLibrary

An interface for binding providing a function library for evaluating XPath expressions

See Also:

ExpressionContext

Method Summary

void	addFunction(Function function) Add a function to the library
Function	getFunction(ExpandedQName name) Return an object of type Function given the function name.
boolean	isFunctionAvailable(ExpressionContext context, ExpandedQName name) Return true if a function under a given name is available

Method Detail

getFunction

Function getFunction(ExpandedQName name)
                     throws XPathParserException

Return an object of type Function given the function name.

Parameters:

name - The name of the function

Returns:

a Function object

Throws:

XPathParserException

isFunctionAvailable

boolean isFunctionAvailable(ExpressionContext context,
                            ExpandedQName name)

Return true if a function under a given name is available

Parameters:

context - the expression context

name - name of the function

addFunction

void addFunction(Function function)

Add a function to the library

Parameters:

function - The function to bind.