com.saxonica.stream.feed
Class BufferingFeed

java.lang.Object
  com.saxonica.stream.feed.ItemFeed
      com.saxonica.stream.feed.BufferingFeed

All Implemented Interfaces:

Feed

public class BufferingFeed
extends ItemFeed

A BufferingFeed is used to wrap an expression that does not have intrinsic capability to accept streamed input. The expression must have been modified to read its input from a SuppliedParameterReference referring to the dynamic context stack. This feed buffers up the streamed input, and on its close() method calls the wrapped expression having placed the buffered input onto the context stack, from where the expression will now read it.

Constructor Summary

BufferingFeed(Expression expr, Feed result, Stack<XPathContext> contextStack)

Method Summary

void	append(Item item) Supply an item to the feed
void	close() Signal the end of the sequence of items

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

getContext, getContextStack, getExpression, getPipelineConfiguration, getResult, open, setPipelineConfiguration

Methods inherited from class java.lang.Object

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

Constructor Detail

BufferingFeed

public BufferingFeed(Expression expr,
                     Feed result,
                     Stack<XPathContext> contextStack)

Method Detail

append

public void append(Item item)
            throws XPathException

Supply an item to the feed

Specified by:

append in interface Feed

Specified by:

append in class ItemFeed

Parameters:

item - the item being fed

Throws:

XPathException - to report any failure

close

public void close()
           throws XPathException

Signal the end of the sequence of items

Specified by:

close in interface Feed

Overrides:

close in class ItemFeed

Throws:

XPathException - to report any failure