org.jaxen.function
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.
See Also: Section 4.1 of the XPath Specification
Constructor Summary | |
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NamespaceUriFunction()
Create a new NamespaceUriFunction object. |
Method Summary | |
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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.
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static String | evaluate(List list, Navigator nav)
Returns the namespace URI of list.get(0)
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NamespaceUriFunction
object.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
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