net.sf.saxon.event
Class ReceivingContentHandler

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

All Implemented Interfaces:

ContentHandler, DTDHandler, LexicalHandler

Direct Known Subclasses:

IdentityTransformerHandler, TemplatesHandlerImpl, TransformerHandlerImpl

public class ReceivingContentHandler
extends Object
implements ContentHandler, LexicalHandler, DTDHandler

ReceivingContentHandler is a glue class that provides a standard SAX ContentHandler interface to a Saxon Receiver. To achieve this it needs to map names supplied as strings to numeric name codes, for which purpose it needs access to a name pool. The class also performs the function of assembling adjacent text nodes.

The class was previously named ContentEmitter.

If the input stream contains the processing instructions assigned by JAXP to switch disable-output-escaping on or off, these will be reflected in properties set in the corresponding characters events. In this case adjacent text nodes will not be combined.

Author:

Michael H. Kay

Constructor Summary

ReceivingContentHandler()
Create a ReceivingContentHandler and initialise variables

Method Summary

void	characters(char[] ch, int start, int length) Report character data.
void	comment(char[] ch, int start, int length) Notify the existence of a comment.
void	endCDATA()
void	endDocument() Receive notification of the end of a document
void	endDTD() Register the end of the DTD.
void	endElement(String uri, String localname, String rawname) Report the end of an element (the close tag)
void	endEntity(String name)
void	endPrefixMapping(String prefix) Notify that a namespace binding is going out of scope
Configuration	getConfiguration() Get the Configuration object
PipelineConfiguration	getPipelineConfiguration() Get the pipeline configuration
Receiver	getReceiver() Get the receiver to which events are passed.
void	ignorableWhitespace(char[] ch, int start, int length) Report character data classified as "Ignorable whitespace", that is, whitespace text nodes appearing as children of elements with an element-only content model
boolean	isIgnoringIgnorableWhitespace() Determine whether "ignorable whitespace" is ignored.
void	notationDecl(String name, String publicId, String systemId)
void	processingInstruction(String name, String remainder) Notify the existence of a processing instruction
void	reset() Set the ReceivingContentHandler to its initial state, except for the local name cache, which is retained
void	setDocumentLocator(Locator locator) Supply a locator that can be called to give information about location in the source document being parsed.
void	setIgnoreIgnorableWhitespace(boolean ignore) Set whether "ignorable whitespace" should be ignored.
void	setPipelineConfiguration(PipelineConfiguration pipe) Set the pipeline configuration
void	setReceiver(Receiver receiver) Set the receiver to which events are passed.
void	skippedEntity(String name) Notify a skipped entity.
void	startCDATA()
void	startDocument() Receive notification of the beginning of a document.
void	startDTD(String name, String publicId, String systemId) Register the start of the DTD.
void	startElement(String uri, String localname, String rawname, Attributes atts) Notify an element start event, including all the associated attributes
void	startEntity(String name)
void	startPrefixMapping(String prefix, String uri) Notify a namespace prefix to URI binding
void	unparsedEntityDecl(String name, String publicId, String systemId, String notationName)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReceivingContentHandler

public ReceivingContentHandler()

Create a ReceivingContentHandler and initialise variables

Method Detail

reset

public void reset()

Set the ReceivingContentHandler to its initial state, except for the local name cache, which is retained

setReceiver

public void setReceiver(Receiver receiver)

Set the receiver to which events are passed. ReceivingContentHandler is essentially a translator that takes SAX events as input and produces Saxon Receiver events as output; these Receiver events are passed to the supplied Receiver

Parameters:

receiver - the Receiver of events

getReceiver

public Receiver getReceiver()

Get the receiver to which events are passed.

Returns:

the underlying Receiver

setPipelineConfiguration

public void setPipelineConfiguration(PipelineConfiguration pipe)

Set the pipeline configuration

Parameters:

pipe - the pipeline configuration. This holds a reference to the Saxon configuration, as well as information that can vary from one pipeline to another, for example the LocationProvider which resolves the location of events in a source document

getPipelineConfiguration

public PipelineConfiguration getPipelineConfiguration()

Get the pipeline configuration

Returns:

the pipeline configuration as supplied to setPipelineConfiguration(PipelineConfiguration)

getConfiguration

public Configuration getConfiguration()

Get the Configuration object

Returns:

the Saxon configuration

setIgnoreIgnorableWhitespace

public void setIgnoreIgnorableWhitespace(boolean ignore)

Set whether "ignorable whitespace" should be ignored. This method is effective only if called after setPipelineConfiguration, since the default value is taken from the configuration.

Parameters:

ignore - true if ignorable whitespace (whitespace in element content that is notified via the ignorableWhitespace(char[], int, int) method) should be ignored, false if it should be treated as ordinary text.

isIgnoringIgnorableWhitespace

public boolean isIgnoringIgnorableWhitespace()

Determine whether "ignorable whitespace" is ignored. This returns the value that was set using setIgnoreIgnorableWhitespace(boolean) if that has been called; otherwise the value from the configuration.

Returns:

true if ignorable whitespace is being ignored

startDocument

public void startDocument()
                   throws SAXException

Receive notification of the beginning of a document.

Specified by:

startDocument in interface ContentHandler

Throws:

SAXException

endDocument

public void endDocument()
                 throws SAXException

Receive notification of the end of a document

Specified by:

endDocument in interface ContentHandler

Throws:

SAXException

setDocumentLocator

public void setDocumentLocator(Locator locator)

Supply a locator that can be called to give information about location in the source document being parsed.

Specified by:

setDocumentLocator in interface ContentHandler

startPrefixMapping

public void startPrefixMapping(String prefix,
                               String uri)
                        throws SAXException

Notify a namespace prefix to URI binding

Specified by:

startPrefixMapping in interface ContentHandler

Throws:

SAXException

endPrefixMapping

public void endPrefixMapping(String prefix)
                      throws SAXException

Notify that a namespace binding is going out of scope

Specified by:

endPrefixMapping in interface ContentHandler

Throws:

SAXException

startElement

public void startElement(String uri,
                         String localname,
                         String rawname,
                         Attributes atts)
                  throws SAXException

Notify an element start event, including all the associated attributes

Specified by:

startElement in interface ContentHandler

Throws:

SAXException

endElement

public void endElement(String uri,
                       String localname,
                       String rawname)
                throws SAXException

Report the end of an element (the close tag)

Specified by:

endElement in interface ContentHandler

Throws:

SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

Report character data. Note that contiguous character data may be reported as a sequence of calls on this method, with arbitrary boundaries

Specified by:

characters in interface ContentHandler

Throws:

SAXException

ignorableWhitespace

public void ignorableWhitespace(char[] ch,
                                int start,
                                int length)
                         throws SAXException

Report character data classified as "Ignorable whitespace", that is, whitespace text nodes appearing as children of elements with an element-only content model

Specified by:

ignorableWhitespace in interface ContentHandler

Throws:

SAXException

processingInstruction

public void processingInstruction(String name,
                                  String remainder)
                           throws SAXException

Notify the existence of a processing instruction

Specified by:

processingInstruction in interface ContentHandler

Throws:

SAXException

comment

public void comment(char[] ch,
                    int start,
                    int length)
             throws SAXException

Notify the existence of a comment. Note that in SAX this is part of LexicalHandler interface rather than the ContentHandler interface.

Specified by:

comment in interface LexicalHandler

Throws:

SAXException

skippedEntity

public void skippedEntity(String name)
                   throws SAXException

Notify a skipped entity. Saxon ignores this event

Specified by:

skippedEntity in interface ContentHandler

Throws:

SAXException

startDTD

public void startDTD(String name,
                     String publicId,
                     String systemId)
              throws SAXException

Register the start of the DTD. Saxon ignores the DTD; however, it needs to know when the DTD starts and ends so that it can ignore comments in the DTD, which are reported like any other comment, but which are skipped because they are not part of the XPath data model

Specified by:

startDTD in interface LexicalHandler

Throws:

SAXException

endDTD

public void endDTD()
            throws SAXException

Register the end of the DTD. Comments in the DTD are skipped because they are not part of the XPath data model

Specified by:

endDTD in interface LexicalHandler

Throws:

SAXException

startEntity

public void startEntity(String name)
                 throws SAXException

Specified by:

startEntity in interface LexicalHandler

Throws:

SAXException

endEntity

public void endEntity(String name)
               throws SAXException

Specified by:

endEntity in interface LexicalHandler

Throws:

SAXException

startCDATA

public void startCDATA()
                throws SAXException

Specified by:

startCDATA in interface LexicalHandler

Throws:

SAXException

endCDATA

public void endCDATA()
              throws SAXException

Specified by:

endCDATA in interface LexicalHandler

Throws:

SAXException

notationDecl

public void notationDecl(String name,
                         String publicId,
                         String systemId)
                  throws SAXException

Specified by:

notationDecl in interface DTDHandler

Throws:

SAXException

unparsedEntityDecl

public void unparsedEntityDecl(String name,
                               String publicId,
                               String systemId,
                               String notationName)
                        throws SAXException

Specified by:

unparsedEntityDecl in interface DTDHandler

Throws:

SAXException