Package com.saxonica.ee.stream.adjunct

Class FeedToEventBuffer

java.lang.Object

net.sf.saxon.event.Outputter

net.sf.saxon.event.ProxyOutputter

com.saxonica.ee.stream.feed.ItemFeed

com.saxonica.ee.stream.adjunct.FeedToEventBuffer

All Implemented Interfaces:

javax.xml.transform.Result, Receiver

public class FeedToEventBuffer
extends ItemFeed

An ItemFeed that captures all written events in a buffer for subsequent replay.

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
FeedToEventBuffer(Outputter next, ItemFeed agglomerator, XPathContext context)

Method Summary

Modifier and Type	Method	Description
void	append(Item item)	Supply one item towards the streamed input of the expression
void	attribute(NodeName name, SimpleType type, java.lang.String value, Location location, int properties)	Notify an attribute.
void	characters(UnicodeString chars, Location location, int properties)	Notify character data.
void	close()	Finish evaluating the expression.
void	comment(UnicodeString content, Location location, int properties)	Notify a comment.
void	endDocument()	Notify the end of a document node
void	endElement()	Notify the end of an element.
void	namespace(java.lang.String prefix, NamespaceUri uri, int properties)	Notify a namespace binding.
void	processingInstruction(java.lang.String name, UnicodeString data, Location location, int properties)	Output a processing instruction
void	replay(Outputter out)	Replay the captured events to a supplied destination
void	setBuffer(java.util.List<OutputterEvent> buffer)
void	setHasFailed()	Mark this feed as having failed (that is, as having detected and reported a dynamic error).
void	startContent()	Notify the start of the content, that is, the completion of all attributes and namespaces.
void	startDocument(int properties)	Notify the start of a document node
void	startElement(NodeName elemName, SchemaType type, AttributeMap attributes, NamespaceMap namespaces, Location location, int properties)	Notify the start of an element, supplying all attributes and namespaces
void	startElement(NodeName elemName, SchemaType typeCode, Location location, int properties)	Notify the start of an element

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

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

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

getNextOutputter, open, setUnparsedEntity, usesTypeAnnotations

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

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

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 Detail

FeedToEventBuffer

public FeedToEventBuffer(Outputter next,
                         ItemFeed agglomerator,
                         XPathContext context)

Method Detail

setBuffer

public void setBuffer(java.util.List<OutputterEvent> buffer)

startDocument

public void startDocument(int properties)
                   throws XPathException

Description copied from class: ProxyOutputter

Notify the start of a document node

Specified by:

startDocument in interface Receiver

Overrides:

startDocument in class ProxyOutputter

Parameters:

properties - bit-significant integer indicating properties of the document node. The definitions of the bits are in class ReceiverOption

Throws:

XPathException - if an error occurs

endDocument

public void endDocument()
                 throws XPathException

Description copied from class: ProxyOutputter

Notify the end of a document node

Specified by:

endDocument in interface Receiver

Overrides:

endDocument in class ProxyOutputter

Throws:

XPathException - if an error occurs

startElement

public void startElement(NodeName elemName,
                         SchemaType typeCode,
                         Location location,
                         int properties)

Description copied from class: ProxyOutputter

Notify the start of an element

Overrides:

startElement in class ProxyOutputter

Parameters:

elemName - the name of the element.

typeCode - the type annotation of the element.

location - an object providing information about the module, line, and column where the node originated

properties - bit-significant properties of the element node. If there are no relevant properties, zero is supplied. The definitions of the bits are in class ReceiverOption

startElement

public void startElement(NodeName elemName,
                         SchemaType type,
                         AttributeMap attributes,
                         NamespaceMap namespaces,
                         Location location,
                         int properties)
                  throws XPathException

Description copied from class: ProxyOutputter

Notify the start of an element, supplying all attributes and namespaces

Specified by:

startElement in interface Receiver

Overrides:

startElement in class ProxyOutputter

Parameters:

elemName - the name of the element.

type - the type annotation of the element.

attributes - the attributes of this element

namespaces - the in-scope namespaces of this element: generally this is all the in-scope namespaces, without relying on inheriting namespaces from parent elements

location - an object providing information about the module, line, and column where the node originated

properties - bit-significant properties of the element node. If there are no relevant properties, zero is supplied. The definitions of the bits are in class ReceiverOption

Throws:

XPathException - if an error occurs

attribute

public void attribute(NodeName name,
                      SimpleType type,
                      java.lang.String value,
                      Location location,
                      int properties)

Description copied from class: ProxyOutputter

Notify an attribute. Attributes are notified after the startElement event, and before any children. Namespaces and attributes may be intermingled.

Overrides:

attribute in class ProxyOutputter

Parameters:

name - The name of the attribute

type - The type annotation of the attribute

value - the string value of the attribute

location - provides information such as line number and system ID.

properties - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this attribute

NO_SPECIAL_CHARACTERS

Attribute value contains no special characters

namespace

public void namespace(java.lang.String prefix,
                      NamespaceUri uri,
                      int properties)

Description copied from class: ProxyOutputter

Notify a namespace binding. This method is called at some point after startElement(). The semantics are similar to the xsl:namespace instruction in XSLT, or the namespace node constructor in XQuery. A namespace must not conflict with any namespaces already used for element or attribute names.

Overrides:

namespace in class ProxyOutputter

Parameters:

prefix - The namespace prefix; zero-length string for the default namespace

uri - The namespace URI. In some cases a zero-length string may be used to indicate a namespace undeclaration.

properties - The REJECT_DUPLICATES property: if set, the namespace declaration will be rejected if it conflicts with a previous declaration of the same prefix. If the property is not set, the namespace declaration will be ignored if it conflicts with a previous declaration. This reflects the fact that when copying a tree, namespaces for child elements are emitted before the namespaces of their parent element. Unfortunately this conflicts with the XSLT rule for complex content construction, where the recovery action in the event of conflicts is to take the namespace that comes last. XSLT therefore doesn't recover from this error:

startContent

public void startContent()

Description copied from class: ProxyOutputter

Notify the start of the content, that is, the completion of all attributes and namespaces. Note that the initial Outputter of output from XSLT instructions will not receive this event, it has to detect it itself. Note that this event is reported for every element even if it has no attributes, no namespaces, and no content.

Overrides:

startContent in class ProxyOutputter

endElement

public void endElement()
                throws XPathException

Description copied from class: ProxyOutputter

Notify the end of an element. The Outputter must maintain a stack if it needs to know which element is ending.

Specified by:

endElement in interface Receiver

Overrides:

endElement in class ProxyOutputter

Throws:

XPathException - if an error occurs

characters

public void characters(UnicodeString chars,
                       Location location,
                       int properties)

Description copied from class: ProxyOutputter

Notify character data. Note that some receivers may require the character data to be sent in a single event, but in general this is not a requirement.

Specified by:

characters in interface Receiver

Overrides:

characters in class ProxyOutputter

Parameters:

chars - The characters

location - provides information such as line number and system ID.

properties - Bit significant value. The following bits are defined:

DISABLE_ESCAPING

Disable escaping for this text node

USE_CDATA

Output as a CDATA section

processingInstruction

public void processingInstruction(java.lang.String name,
                                  UnicodeString data,
                                  Location location,
                                  int properties)

Description copied from class: ProxyOutputter

Output a processing instruction

Specified by:

processingInstruction in interface Receiver

Overrides:

processingInstruction in class ProxyOutputter

Parameters:

name - The PI name. This must be a legal name (it will not be checked).

data - The data portion of the processing instruction

location - provides information such as line number and system ID.

properties - Additional information about the PI.

comment

public void comment(UnicodeString content,
                    Location location,
                    int properties)

Description copied from class: ProxyOutputter

Notify a comment. Comments are only notified if they are outside the DTD.

Specified by:

comment in interface Receiver

Overrides:

comment in class ProxyOutputter

Parameters:

content - The content of the comment

location - provides information such as line number and system ID.

properties - Additional information about the comment.

append

public void append(Item item)
            throws XPathException

Supply one item towards the streamed input of the expression

Specified by:

append in interface Receiver

Specified by:

append in class ItemFeed

Parameters:

item - the item to be supplied

Throws:

XPathException - if the operation fails

close

public void close()
           throws XPathException

Description copied from class: ItemFeed

Finish evaluating the expression.

Specified by:

close in interface Receiver

Overrides:

close in class ItemFeed

Throws:

XPathException - if a dynamic error occurs

replay

public void replay(Outputter out)
            throws XPathException

Replay the captured events to a supplied destination

Parameters:

out - the destination Receiver to receive the events

Throws:

XPathException - if any error occurs

setHasFailed

public void setHasFailed()

Mark this feed as having failed (that is, as having detected and reported a dynamic error). Once the feed is marked as having failed, it should not attempt to process any further input.

Overrides:

setHasFailed in class ItemFeed