Package com.saxonica.ee.stream.feed

Class BufferingFeed

java.lang.Object

net.sf.saxon.event.Outputter

net.sf.saxon.event.ProxyOutputter

com.saxonica.ee.stream.feed.ItemFeed

com.saxonica.ee.stream.feed.BufferingFeed

All Implemented Interfaces:

Result, Receiver

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.

Field Summary

Fields inherited from class net.sf.saxon.event.Outputter

pipelineConfiguration, systemId

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

Constructors

Constructor	Description
BufferingFeed(Expression expr, ItemFeed result, XPathContext context)

Method Summary

Modifier and Type	Method	Description
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.ee.stream.feed.ItemFeed

append, dynamicError, endSelectedParentNode, getContext, getExpression, getResultFeed, getTerminator, hasFailed, open, processItems, setExpression, setHasFailed, setTerminator, startSelectedParentNode

Methods inherited from class net.sf.saxon.event.ProxyOutputter

attribute, characters, comment, endDocument, endElement, getNextOutputter, namespace, open, processingInstruction, setUnparsedEntity, startContent, startDocument, startElement, startElement, usesTypeAnnotations

Methods inherited from class net.sf.saxon.event.Outputter

getConfiguration, getPipelineConfiguration, getStringReceiver, getSystemId, namespaces, setPipelineConfiguration, setSystemId, spreadStartElement

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.event.Receiver

handlesAppend

Constructor Details

BufferingFeed

public BufferingFeed(Expression expr,
 ItemFeed result,
 XPathContext context)

Method Details

append

public void append(Item item)
            throws XPathException

Supply an item to the feed

Specified by:

append in interface Receiver

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 Receiver

Overrides:

close in class ItemFeed

Throws:

XPathException - to report any failure