public class XPathFunctionContext extends java.lang.Object implements FunctionContext
Implementation of FunctionContext
which
matches the core function library as described by the W3C XPath
Specification.
May be directly instantiated or subclassed. A Singleton is provided for ease-of-use in the default case of bare XPaths.
Constructor and Description |
---|
XPathFunctionContext() |
Modifier and Type | Method and Description |
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protected void |
addFunction(java.lang.String name,
Function func)
Add a function to this FunctionContext
|
Function |
getFunction(java.lang.String name)
Retrieve a named function
|
static XPathFunctionContext |
getInstance()
Get the XPathFunctionContext singleton.
|
public static XPathFunctionContext getInstance()
protected void addFunction(java.lang.String name, Function func)
name
- The name of the function.func
- The implementing Function Object.public Function getFunction(java.lang.String name)
Retrieve the named function object, or null if no such function exists.
getFunction
in interface FunctionContext
name
- The name of the function sought.Function
matching the specified name.com.werken.xpath.ContextHelper#setFunctionContext
Copyright ? 2000 bob mcwhirter and The Werken & Sons Company. All Rights Reserved.