com.saxonica.ee.stream.adjunct

Class TryCatchAdjunct.TryCatchFeed

java.lang.Object

com.saxonica.ee.stream.feed.ItemFeed

com.saxonica.ee.stream.adjunct.TryCatchAdjunct.TryCatchFeed

All Implemented Interfaces:

Feed

Enclosing class:

TryCatchAdjunct

public static class TryCatchAdjunct.TryCatchFeed
extends ItemFeed

Constructor Summary

Constructors

Constructor and Description
TryCatchFeed(Expression exp, Feed out, XPathContext context)

Method Summary

Modifier and Type	Method and Description
void	close() Finish evaluating the expression.
void	dynamicError(XPathException err) Report a dynamic error.
SequenceReceiver	getReceiver() Get a receiver to which start and end events for documents and elements can be written.
void	open(Terminator terminator) Start evaluating the expression.
void	processItem(Item<?> item) Supply one item towards the streamed input of the expression

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

endSelectedParentNode, getContext, getExpression, getPipelineConfiguration, 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

TryCatchFeed

public TryCatchFeed(Expression exp,
                    Feed out,
                    XPathContext context)

Method Detail

open

public void open(Terminator terminator)
          throws XPathException

Start evaluating the expression. The default implementation does nothing.

Specified by:

open in interface Feed

Overrides:

open in class ItemFeed

Parameters:

terminator -

Throws:

XPathException - if a dynamic error occurs

getReceiver

public SequenceReceiver getReceiver()

Get a receiver to which start and end events for documents and elements can be written. By default this will be the same as the receiver for the result feed, because very few XSLT constructs (specifically, variables and functions) allow the results of document and element constructors to be captured for further processing. A construct that does need to process these events will intercept them by providing its own receiver, typically a SequenceOutputter.

Specified by:

getReceiver in interface Feed

Overrides:

getReceiver in class ItemFeed

Returns:

the receiver

processItem

public void processItem(Item<?> item)
                 throws XPathException

Supply one item towards the streamed input of the expression

Specified by:

processItem in interface Feed

Specified by:

processItem in class ItemFeed

Parameters:

item - the item to be supplied

Throws:

XPathException - May be raised if a dynamic error occurs

close

public void close()
           throws XPathException

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

dynamicError

public void dynamicError(XPathException err)
                  throws XPathException

Description copied from class: ItemFeed

Report a dynamic error. This requires searching up the "feed" pipeline to see if there is a try/catch expression interested in being notified of this error; if there is none, the error is thrown as an exception

Overrides:

dynamicError in class ItemFeed

Parameters:

err - the exception representing the dynamic error

Throws:

XPathException - if there is no try/catch expression wanting to catch this error