org.apache.xpath.functions

Class FuncPosition

public class FuncPosition extends Function

Execute the Position() function.

UNKNOWN: advanced

Method Summary
XObject	execute(XPathContext xctxt) Execute the function.
void	fixupVariables(Vector vars, int globalsSize) No arguments to process, so this does nothing.
int	getPositionInContextNodeList(XPathContext xctxt) Get the position in the current context node list.
void	postCompileStep(Compiler compiler) Figure out if we're executing a toplevel expression.

Method Detail

public XObject execute(XPathContext xctxt)

Execute the function. The function must return a valid object.

Parameters: xctxt The current execution context.

Returns: A valid XObject.

Throws: javax.xml.transform.TransformerException

public void fixupVariables(Vector vars, int globalsSize)

No arguments to process, so this does nothing.

public int getPositionInContextNodeList(XPathContext xctxt)

Get the position in the current context node list.

Parameters: xctxt Runtime XPath context.

Returns: The current position of the itteration in the context node list, or -1 if there is no active context node list.

public void postCompileStep(Compiler compiler)

Figure out if we're executing a toplevel expression. If so, we can't be inside of a predicate.