jd.xml.xpath.expr.function
Class FunctionLibrary

java.lang.Object
  jd.xml.xpath.expr.function.FunctionLibrary

Direct Known Subclasses:

XPathFunctionLibrary

public class FunctionLibrary

extends Object

FunctionLibrary represents a set of functions.

Constructor Summary

FunctionLibrary()
Create a FunctionLibrary.

FunctionLibrary(int size)
Create a FunctionLibrary.

Method Summary

protected void	addFunction(String name, String className) Add a function to the library.
boolean	containsFunction(String name) Test if the library contains a function.
Function	createFunction(String name) Create the function with the given name.
String	getFunctionClassName(String name) Return the name of a function implentation.
Enumeration	getFunctionNames() Return a Enumeration of the function names.

Methods inherited from class java.lang.Object

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

Constructor Detail

FunctionLibrary

public FunctionLibrary()

Create a FunctionLibrary.

FunctionLibrary

public FunctionLibrary(int size)

Create a FunctionLibrary.

Parameters:

size - the expected size of the library.

Method Detail

addFunction

protected void addFunction(String name,
                           String className)

Add a function to the library.

containsFunction

public boolean containsFunction(String name)

Test if the library contains a function.

createFunction

public Function createFunction(String name)
                        throws InstantiationException,
                               ClassNotFoundException,
                               IllegalAccessException

Create the function with the given name.

Returns:

the function or null if the library does not contain such a function

Throws:

InstantiationException

ClassNotFoundException

IllegalAccessException

getFunctionClassName

public String getFunctionClassName(String name)

Return the name of a function implentation.

Returns:

the class name or null if the library does not contain such a function

getFunctionNames

public Enumeration getFunctionNames()

Return a Enumeration of the function names.