com.japisoft.xpath.function.basic
Class NamespaceURI

java.lang.Object
  |
  +--com.japisoft.xpath.function.AbstractFunction
        |
        +--com.japisoft.xpath.function.basic.NamespaceURI

All Implemented Interfaces:

Function

public final class NamespaceURI

extends AbstractFunction

Function returns the namespace URI of the expanded-name of the node in the argument node-set that is first in document order. If the argument node-set is empty, the first node has no expanded-name, or the namespace URI of the expanded-name is null, an empty string is returned. If the argument is omitted, it defaults to a node-set with the context node as its only member.

Version:

1.1

Author:

(c) 2003 JAPISOFT

Constructor Summary

NamespaceURI()

Method Summary

java.lang.Object

eval(XPathContext context, FastVector arg) Evalute this function for this context and the following arguments

Methods inherited from class com.japisoft.xpath.function.AbstractFunction

checkOneNodeSet, checkOneNumber, checkOneParameter, checkOneString, checkThreeStrings, checkTwoStrings, getString1, getString2, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NamespaceURI

public NamespaceURI()

Method Detail

eval

public java.lang.Object eval(XPathContext context,
                             FastVector arg)

Description copied from class: AbstractFunction

Evalute this function for this context and the following arguments

Specified by:

eval in interface Function

Specified by:

eval in class AbstractFunction

Parameters:

arg - a Vector value, this is the responsability of the function to test the argument type

Returns:

an Object value like Integer, Boolean, String or NodeSet