oracle.security.xmlsec.transform

Class HereFunction

java.lang.Object

oracle.security.xmlsec.transform.HereFunction

All Implemented Interfaces:

org.jaxen.Function

public class HereFunction
extends java.lang.Object
implements org.jaxen.Function

Internal use only. Implements the XPath here() function, as defined in the IETF/W3C XML Signature specification, for the jaxen XPath engine.

Since:

2.0

Constructor Summary

Constructors

Constructor and Description
HereFunction() Instantiates a new HereFunction instance.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	call(org.jaxen.Context context, java.util.List args) Call this function.

Methods inherited from class java.lang.Object

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

Constructor Detail

HereFunction

public HereFunction()

Instantiates a new HereFunction instance.

Method Detail

call

public java.lang.Object call(org.jaxen.Context context,
                    java.util.List args)
                      throws org.jaxen.FunctionCallException

Call this function.

Specified by:

call in interface org.jaxen.Function

Parameters:

context - The context at the point in the expression when the function is called. The Context must have a ContextSupport instance of type HereFunctionContextSupport installed.

args - List of arguments provided during the call of the function. Must be null or length 0.

Returns:

A java.util.List containing the node bearing the XPath expression.

Throws:

org.jaxen.FunctionCallException - If the XPath node could not be obtained from the HereFunctionContextSupport; or if the context node is not in the same document as the XPath node; or if the given XPath node is not one of the allowable node types.