net.sourceforge.htmlunit.xpath.functions

Class FuncLast

java.lang.Object

net.sourceforge.htmlunit.xpath.Expression

net.sourceforge.htmlunit.xpath.functions.Function

net.sourceforge.htmlunit.xpath.functions.FuncLast

All Implemented Interfaces:

SourceLocator, ExpressionNode, XPathVisitable

public class FuncLast
extends Function

Execute the Last() function.

Constructor Summary

Constructors

Constructor and Description
FuncLast()

Method Summary

Modifier and Type	Method and Description
XObject	execute(XPathContext xctxt) Execute an expression in the XPath runtime context, and return the result of the expression.
int	getCountOfContextNodeList(XPathContext xctxt) Get the position in the current context node list.
void	postCompileStep(Compiler compiler) This function is currently only being used by Position() and Last().

Methods inherited from class net.sourceforge.htmlunit.xpath.functions.Function

callArgVisitors, callVisitors, checkNumberArgs, deepEquals, reportWrongNumberArgs, setArg

Methods inherited from class net.sourceforge.htmlunit.xpath.Expression

asIterator, asNode, assertion, bool, canTraverseOutsideSubtree, error, execute, execute, execute, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isSameClass, isStableNumber, num

Methods inherited from class java.lang.Object

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

Constructor Detail

FuncLast

public FuncLast()

Method Detail

postCompileStep

public void postCompileStep(Compiler compiler)

This function is currently only being used by Position() and Last(). See respective functions for more detail.

Overrides:

postCompileStep in class Function

getCountOfContextNodeList

public int getCountOfContextNodeList(XPathContext xctxt)
                              throws TransformerException

Get the position in the current context node list.

Parameters:

xctxt - non-null reference to XPath runtime context.

Returns:

The number of nodes in the list.

Throws:

TransformerException - in case of error

execute

public XObject execute(XPathContext xctxt)
                throws TransformerException

Execute an expression in the XPath runtime context, and return the result of the expression.

Overrides:

execute in class Function

Parameters:

xctxt - The XPath runtime context.

Returns:

The result of the expression in the form of a XObject.

Throws:

TransformerException - if a runtime exception occurs.