Class NamespaceUriFunction

java.lang.Object
org.jaxen.function.NamespaceUriFunction
All Implemented Interfaces:
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.
Author:
bob mcwhirter (bob @ werken.com)
See Also:
  • Constructor Details

    • NamespaceUriFunction

      public NamespaceUriFunction()
      Create a new NamespaceUriFunction object.
  • Method Details

    • call

      public Object call(Context context, List args) throws FunctionCallException
      Returns the namespace URI of the specified node or the namespace URI of the context node if no arguments are provided.
      Specified by:
      call in interface Function
      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) throws FunctionCallException
      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