net.sf.saxon.expr.flwor
Class ForClauseOuterPush

java.lang.Object
  net.sf.saxon.expr.flwor.TuplePush
      net.sf.saxon.expr.flwor.ForClauseOuterPush

public class ForClauseOuterPush
extends TuplePush

This class implements the changes to the tuple stream effected by a "for" clause in a FLWOR expression where "allowing empty" is specified

Field Summary

protected TuplePush	destination
protected ForClause	forClause

Constructor Summary

ForClauseOuterPush(TuplePush destination, ForClause forClause)

Method Summary

void	close() Close the tuple stream, indicating that no more tuples will be supplied
void	processTuple(XPathContext context) Notify the availability of the next tuple.

Methods inherited from class java.lang.Object

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

Field Detail

destination

protected TuplePush destination

forClause

protected ForClause forClause

Constructor Detail

ForClauseOuterPush

public ForClauseOuterPush(TuplePush destination,
                          ForClause forClause)

Method Detail

processTuple

public void processTuple(XPathContext context)
                  throws XPathException

Description copied from class: TuplePush

Notify the availability of the next tuple. Before calling this method, the supplier of the tuples must set all the variables corresponding to the supplied tuple in the local stack frame associated with the context object

Specified by:

processTuple in class TuplePush

Parameters:

context - the dynamic evaluation context

Throws:

XPathException - if a dynamic error occurs

close

public void close()
           throws XPathException

Description copied from class: TuplePush

Close the tuple stream, indicating that no more tuples will be supplied

Overrides:

close in class TuplePush

Throws:

XPathException - if a dynamic error occurs