com.saxonica.ee.stream.feed

Class GeneralComparisonFeed

java.lang.Object

com.saxonica.ee.stream.feed.ItemFeed

com.saxonica.ee.stream.feed.GeneralComparisonFeed

All Implemented Interfaces:

Feed

public class GeneralComparisonFeed
extends ItemFeed

This class is used when a streaming template requests a general comparison with one operand being pushed from the streamed input document, and the other being evaluated in pull mode.

Constructor Summary

Constructors

Constructor and Description
GeneralComparisonFeed(Expression expr, int pushedArg, Feed result, XPathContext context)

Method Summary

Methods

Modifier and Type	Method and Description
void	close() Finish evaluating the expression.
void	open(Terminator terminator) Start evaluating the expression.
void	processItem(Item item) Supply an item to the feed

Methods inherited from class com.saxonica.ee.stream.feed.ItemFeed

dynamicError, endSelectedParentNode, getContext, getExpression, getPipelineConfiguration, getReceiver, getResult, getTerminator, hasFailed, processItems, setExpression, setHasFailed, setPipelineConfiguration, setTerminator, startSelectedParentNode

Methods inherited from class java.lang.Object

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

Constructor Detail

GeneralComparisonFeed

public GeneralComparisonFeed(Expression expr,
                     int pushedArg,
                     Feed result,
                     XPathContext context)

Method Detail

open

public void open(Terminator terminator)
          throws XPathException

Description copied from class: ItemFeed

Start evaluating the expression. The default implementation does nothing.

Specified by:

open in interface Feed

Overrides:

open in class ItemFeed

Parameters:

terminator - used to achieve early exit

Throws:

XPathException - if a dynamic error occurs

processItem

public void processItem(Item item)
                 throws XPathException

Supply an item to the feed

Specified by:

processItem in interface Feed

Specified by:

processItem in class ItemFeed

Parameters:

item - the item being fed (in this case, an item in the "pushed" operand sequence that is being compared

Throws:

XPathException - to report any failure

close

public void close()
           throws XPathException

Description copied from class: ItemFeed

Finish evaluating the expression. The default implementation does nothing.

Specified by:

close in interface Feed

Overrides:

close in class ItemFeed

Throws:

XPathException - if a dynamic error occurs