com.saxonica.stream.action
Interface StreamingAction

All Known Implementing Classes:

InstructionAction, LeftAction, PopFromStackAction, PushPositionAction, PushToStackAction, RightAction, StackIteratorAction, StackMappingAction

public interface StreamingAction

An action that can be performed in streaming mode; results from compiling a streamable template

Method Summary

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

Method Detail

process

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

Perform the action

Parameters:

contextStack - stack of XPathContext objects. The method should use the one at the top of the stack. It may also add a new context object to the top of the stack.

state - @throws XPathException

Throws:

XPathException

explain

void explain(ExpressionPresenter presenter)

Explain the action

Parameters:

presenter - The ExpressionPresenter (destination for the explanation