Package 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

Field Summary

Fields

Modifier and Type	Field	Description
(package private) TuplePush	destination
(package private) LetClause	letClause

Constructor Summary

Constructors

Constructor	Description
LetClausePush(TuplePush destination, LetClause letClause)

Method Summary

Modifier and Type	Method	Description
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

TuplePush destination

letClause

LetClause letClause

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