Package org.jaxen.function

Class LastFunction

java.lang.Object

org.jaxen.function.LastFunction

All Implemented Interfaces:

Function

public class LastFunction
extends java.lang.Object
implements Function

4.1 number last()

The last function returns a number equal to the context size from the expression evaluation context.

Author:

bob mcwhirter (bob @ werken.com)

See Also:

Section 4.1 of the XPath Specification

Constructor Summary

Constructors

Constructor	Description
LastFunction()	Create a new LastFunction object.

Method Summary

Modifier and Type	Method	Description
java.lang.Object	call(Context context, java.util.List args)	Returns the number of nodes in the context node-set.
static java.lang.Double	evaluate(Context context)	Returns the number of nodes in the context node-set.

Methods inherited from class java.lang.Object

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

Constructor Detail

LastFunction

public LastFunction()

Create a new LastFunction object.

Method Detail

call

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

Returns the number of nodes in the context node-set.

Specified by:

call in interface Function

Parameters:

context - the context at the point in the expression where the function is called

args - an empty list

Returns:

a Double containing the context size

Throws:

FunctionCallException - if args is not empty

See Also:

Context.getSize()

evaluate

public static java.lang.Double evaluate(Context context)

Returns the number of nodes in the context node-set.

Parameters:

context - the context at the point in the expression where the function is called

Returns:

the context size

See Also:

Context.getSize()