com.saxonica.stream.action
Class StackMappingAction

java.lang.Object
  com.saxonica.stream.action.StackMappingAction

All Implemented Interfaces:

StreamingAction

public class StackMappingAction
extends Object
implements StreamingAction

A streaming action that takes the iterator on the top of the operation stack and replaces it with an iterator over the result of applying a mapping function to the sequence

Constructor Summary

StackMappingAction(MappingExpression expr)

Method Summary

void	explain(ExpressionPresenter presenter) Explain the action
void	process(Stack<XPathContext> contextStack, Stack state) Perform the action

Methods inherited from class java.lang.Object

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

Constructor Detail

StackMappingAction

public StackMappingAction(MappingExpression expr)

Method Detail

process

public void process(Stack<XPathContext> contextStack,
                    Stack state)
             throws XPathException

Perform the action

Specified by:

process in interface StreamingAction

Parameters:

contextStack -

state - @throws net.sf.saxon.trans.XPathException

Throws:

XPathException

explain

public void explain(ExpressionPresenter presenter)

Explain the action

Specified by:

explain in interface StreamingAction

Parameters:

presenter - The ExpressionPresenter (destination for the explanation