org.apache.xpath.compiler
Class FuncLoader

java.lang.Object
  org.apache.xpath.compiler.FuncLoader

public class FuncLoader

extends Object

Lazy load of functions into the function table as needed, so we don't have to load all the functions allowed in XPath and XSLT on startup.

Field Summary

private int	m_funcID The function ID, which may correspond to one of the FUNC_XXX values found in FunctionTable, but may be a value installed by an external module.
private String	m_funcName The class name of the function.

Constructor Summary

FuncLoader(String funcName, int funcID)
Construct a function loader

Method Summary

Function	getFunction() Get a Function instance that this instance is liaisoning for.
String	getName() Get the local class name of the function class.

Methods inherited from class java.lang.Object

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

Field Detail

m_funcID

private int m_funcID

The function ID, which may correspond to one of the FUNC_XXX values found in FunctionTable, but may be a value installed by an external module.

m_funcName

private String m_funcName

The class name of the function. Must not be null.

Constructor Detail

FuncLoader

public FuncLoader(String funcName,
                  int funcID)

Construct a function loader

Parameters:

funcName - The class name of the {org.apache.xpath.functions.Function} class, which, if it does not have a '.' in it, is assumed to be relative to 'org.apache.xpath.functions'.

funcID - The function ID, which may correspond to one of the FUNC_XXX values found in FunctionTable, but may be a value installed by an external module.

Method Detail

getName

public String getName()

Get the local class name of the function class. If function name does not have a '.' in it, it is assumed to be relative to 'org.apache.xpath.functions'.

Returns:

The class name of the {org.apache.xpath.functions.Function} class.

getFunction

public Function getFunction()
                     throws javax.xml.transform.TransformerException

Get a Function instance that this instance is liaisoning for.

Returns:

non-null reference to Function derivative.

Throws:

javax.xml.transform.TransformerException - if ClassNotFoundException, IllegalAccessException, or InstantiationException is thrown.