org.jaxen.function

Class NamespaceUriFunction

public class NamespaceUriFunction extends Object implements Function

4.1 string namespace-uri(node-set?)

The namespace-uri 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.

NOTE: The string returned by the namespace-uri function will be empty except for element nodes and attribute nodes.

Author: bob mcwhirter (bob @ werken.com)

Constructor Summary
	NamespaceUriFunction() Create a new `NamespaceUriFunction` object.

Method Summary
Object	call(Context context, List args) Returns the namespace URI of the specified node or the namespace URI of the context node if no arguments are provided.
static String	evaluate(List list, Navigator nav) Returns the namespace URI of `list.get(0)`

Constructor Detail

NamespaceUriFunction

public NamespaceUriFunction()

Create a new NamespaceUriFunction object.

Method Detail

call

public Object call(Context context, List args)

Returns the namespace URI of the specified node or the namespace URI of the context node if no arguments are provided.

Parameters: context the context at the point in the expression where the function is called args a List containing zero or one items

Returns: a String containing the namespace URI

Throws: FunctionCallException if args has more than one item

evaluate

public static String evaluate(List list, Navigator nav)

Returns the namespace URI of list.get(0)

Parameters: list a list of nodes nav the Navigator used to retrieve the namespace

Returns: the namespace URI of list.get(0)

Throws: FunctionCallException if list.get(0) is not a node