com.caucho.xpath

Class XPathFun

java.lang.Object

com.caucho.xpath.XPathFun

Direct Known Subclasses:

DocumentFun, ExtensionElementFun, ExtensionFunctionFun, FormatNumberFun, KeyFun, SystemPropertyFun, UnparsedEntityFun

public abstract class XPathFun
extends java.lang.Object

Base class for XPath functions. The custom functions can use the Expr.toBoolean, etc. functions to convert to normal Java types.

Constructor Summary

Constructors

Constructor and Description
XPathFun()

Method Summary

Modifier and Type	Method and Description
abstract java.lang.Object	eval(org.w3c.dom.Node node, ExprEnvironment env, AbstractPattern pattern, java.util.ArrayList args) Evaluate the function.

Methods inherited from class java.lang.Object

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

Constructor Detail

XPathFun

public XPathFun()

Method Detail

eval

public abstract java.lang.Object eval(org.w3c.dom.Node node,
                                      ExprEnvironment env,
                                      AbstractPattern pattern,
                                      java.util.ArrayList args)
                               throws XPathException

Evaluate the function.

Parameters:

pattern - The context pattern.

args - The evaluated arguments

Throws:

XPathException