net.sf.saxon.event
Class Emitter

java.lang.Object
  net.sf.saxon.event.Emitter

All Implemented Interfaces:

Result, Receiver

Direct Known Subclasses:

ContentHandlerProxy, DOMEmitter, XMLEmitter

public abstract class Emitter
extends Object
implements Result, Receiver

Emitter: This abstract class defines methods that must be implemented by components that format SAXON output. There is one emitter for XML, one for HTML, and so on. Additional methods are concerned with setting options and providing a Writer.

The interface is deliberately designed to be as close as possible to the standard SAX2 ContentHandler interface, however, it allows additional information to be made available. An Emitter is a Receiver, specifically it is a Receiver that can direct output to a Writer or OutputStream, using serialization properties defined in a Properties object.

Field Summary

protected CharacterSet	characterSet
protected NamePool	namePool
protected Properties	outputProperties
protected OutputStream	outputStream
protected PipelineConfiguration	pipelineConfig
protected StreamResult	streamResult
protected String	systemId
protected Writer	writer

Fields inherited from interface javax.xml.transform.Result

PI_DISABLE_OUTPUT_ESCAPING, PI_ENABLE_OUTPUT_ESCAPING

Constructor Summary

Emitter()

Method Summary

Configuration	getConfiguration() Get the configuration used for this document
Properties	getOutputProperties() Get the output properties
OutputStream	getOutputStream() Get the output stream
PipelineConfiguration	getPipelineConfiguration() Get the pipeline configuration used for this document
String	getSystemId() Get the System ID
Writer	getWriter() Get the output writer
static Receiver	makeEmitter(String className, Controller controller) Load a named output emitter or SAX2 ContentHandler and check it is OK.
protected void	makeWriter() Make a Writer for this Emitter to use, given a StreamResult
void	setOutputProperties(Properties details) Set output properties
void	setOutputStream(OutputStream stream) Set the output destination as a byte stream
void	setPipelineConfiguration(PipelineConfiguration pipe) Set the namePool in which all name codes can be found
void	setStreamResult(StreamResult result) Set the StreamResult acting as the output destination of the Emitter
void	setSystemId(String systemId) Set the System ID
void	setUnparsedEntity(String name, String uri, String publicId) Set unparsed entity URI.
void	setWriter(Writer writer) Set the output destination as a character stream
boolean	usesWriter() Determine whether the Emitter wants a Writer for character output or an OutputStream for binary output.

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

attribute, characters, close, comment, endDocument, endElement, namespace, open, processingInstruction, startContent, startDocument, startElement

Field Detail

pipelineConfig

protected PipelineConfiguration pipelineConfig

namePool

protected NamePool namePool

systemId

protected String systemId

streamResult

protected StreamResult streamResult

writer

protected Writer writer

outputStream

protected OutputStream outputStream

outputProperties

protected Properties outputProperties

characterSet

protected CharacterSet characterSet

Constructor Detail

Emitter

public Emitter()

Method Detail

setPipelineConfiguration

public void setPipelineConfiguration(PipelineConfiguration pipe)

Set the namePool in which all name codes can be found

Specified by:

setPipelineConfiguration in interface Receiver

getPipelineConfiguration

public PipelineConfiguration getPipelineConfiguration()

Get the pipeline configuration used for this document

Specified by:

getPipelineConfiguration in interface Receiver

getConfiguration

public Configuration getConfiguration()

Get the configuration used for this document

setSystemId

public void setSystemId(String systemId)

Set the System ID

Specified by:

setSystemId in interface Result

Specified by:

setSystemId in interface Receiver

getSystemId

public String getSystemId()

Get the System ID

Specified by:

getSystemId in interface Result

setOutputProperties

public void setOutputProperties(Properties details)
                         throws XPathException

Set output properties

Throws:

XPathException

getOutputProperties

public Properties getOutputProperties()

Get the output properties

setStreamResult

public void setStreamResult(StreamResult result)
                     throws XPathException

Set the StreamResult acting as the output destination of the Emitter

Throws:

XPathException

makeWriter

protected void makeWriter()
                   throws XPathException

Make a Writer for this Emitter to use, given a StreamResult

Throws:

XPathException

usesWriter

public boolean usesWriter()

Determine whether the Emitter wants a Writer for character output or an OutputStream for binary output. The standard Emitters all use a Writer, so this returns true; but a subclass can override this if it wants to use an OutputStream

setWriter

public void setWriter(Writer writer)

Set the output destination as a character stream

getWriter

public Writer getWriter()

Get the output writer

setOutputStream

public void setOutputStream(OutputStream stream)
                     throws XPathException

Set the output destination as a byte stream

Throws:

XPathException

getOutputStream

public OutputStream getOutputStream()

Get the output stream

setUnparsedEntity

public void setUnparsedEntity(String name,
                              String uri,
                              String publicId)
                       throws XPathException

Set unparsed entity URI. Needed to satisfy the Receiver interface, but not used, because unparsed entities can occur only in input documents, not in output documents.

Specified by:

setUnparsedEntity in interface Receiver

Parameters:

name - The name of the unparsed entity

uri - The system identifier of the unparsed entity

publicId - The public identifier of the unparsed entity

Throws:

XPathException

makeEmitter

public static Receiver makeEmitter(String className,
                                   Controller controller)
                            throws XPathException

Load a named output emitter or SAX2 ContentHandler and check it is OK.

Throws:

XPathException