net.sf.saxon.expr.flwor
Class LetClausePush

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

public class LetClausePush
extends TuplePush

Implements the changes to a tuple stream effected by the Let clause in a FLWOR expression

Constructor Summary

LetClausePush(TuplePush destination, LetClause letClause)

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

Constructor Detail

LetClausePush

public LetClausePush(TuplePush destination,
                     LetClause letClause)

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