org.apache.fop.util

Class DelegatingContentHandler

java.lang.Object

org.apache.fop.util.DelegatingContentHandler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler, LexicalHandler

Direct Known Subclasses:

DelegatingFragmentContentHandler, GenerationHelperContentHandler

public class DelegatingContentHandler
extends Object
implements EntityResolver, DTDHandler, ContentHandler, LexicalHandler, ErrorHandler

SAX 2 Event Handler which simply delegates all calls to another ContentHandler. Subclasses can do additional processing. This class is the passive counterpart to XMLFilterImpl.

The ContentHandler is the only instance that is required. All others (DTDHandler, EntityResolver, LexicalHandler and ErrorHandler) may be ignored.

Constructor Summary

Constructors

Constructor and Description
DelegatingContentHandler() Main constructor.
DelegatingContentHandler(ContentHandler handler) Convenience constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	characters(char[] ch, int start, int length)
void	comment(char[] ch, int start, int length)
void	endCDATA()
void	endDocument()
void	endDTD()
void	endElement(String uri, String localName, String qName)
void	endEntity(String name)
void	endPrefixMapping(String prefix)
void	error(SAXParseException exception)
void	fatalError(SAXParseException exception)
ContentHandler	getDelegateContentHandler()
void	ignorableWhitespace(char[] ch, int start, int length)
void	notationDecl(String name, String publicId, String systemId)
void	processingInstruction(String target, String data)
InputSource	resolveEntity(String publicId, String systemId)
void	setDelegateContentHandler(ContentHandler handler) Sets the delegate ContentHandler that all events are forwarded to.
void	setDelegateDTDHandler(DTDHandler handler) Sets the delegate DTDHandler.
void	setDelegateEntityResolver(EntityResolver resolver) Sets the delegate EntityResolver.
void	setDelegateErrorHandler(ErrorHandler handler) Sets the delegate ErrorHandler.
void	setDelegateLexicalHandler(LexicalHandler handler) Sets the delegate LexicalHandler.
void	setDocumentLocator(Locator locator)
void	skippedEntity(String name)
void	startCDATA()
void	startDocument()
void	startDTD(String name, String publicId, String systemId)
void	startElement(String uri, String localName, String qName, Attributes atts)
void	startEntity(String name)
void	startPrefixMapping(String prefix, String uri)
void	unparsedEntityDecl(String name, String publicId, String systemId, String notationName)
void	warning(SAXParseException exception)

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingContentHandler

public DelegatingContentHandler()

Main constructor.

DelegatingContentHandler

public DelegatingContentHandler(ContentHandler handler)

Convenience constructor. If the given handler also implements any of the EntityResolver, DTDHandler, LexicalHandler or ErrorHandler interfaces, these are set automatically.

Parameters:

handler - the content handler to delegate to

Method Detail

getDelegateContentHandler

public ContentHandler getDelegateContentHandler()

Returns:

the delegate that all ContentHandler events are forwarded to

setDelegateContentHandler

public void setDelegateContentHandler(ContentHandler handler)

Sets the delegate ContentHandler that all events are forwarded to.

Parameters:

handler - the delegate instance

setDelegateEntityResolver

public void setDelegateEntityResolver(EntityResolver resolver)

Sets the delegate EntityResolver.

Parameters:

resolver - the delegate instance

setDelegateDTDHandler

public void setDelegateDTDHandler(DTDHandler handler)

Sets the delegate DTDHandler.

Parameters:

handler - the delegate instance

setDelegateLexicalHandler

public void setDelegateLexicalHandler(LexicalHandler handler)

Sets the delegate LexicalHandler.

Parameters:

handler - the delegate instance

setDelegateErrorHandler

public void setDelegateErrorHandler(ErrorHandler handler)

Sets the delegate ErrorHandler.

Parameters:

handler - the delegate instance

resolveEntity

public InputSource resolveEntity(String publicId,
                        String systemId)
                          throws SAXException,
                                 IOException

Specified by:

resolveEntity in interface EntityResolver

Throws:

SAXException

IOException

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

setDocumentLocator

public void setDocumentLocator(Locator locator)

Specified by:

setDocumentLocator in interface ContentHandler

startDocument

public void startDocument()
                   throws SAXException

Specified by:

startDocument in interface ContentHandler

Throws:

SAXException

endDocument

public void endDocument()
                 throws SAXException

Specified by:

endDocument in interface ContentHandler

Throws:

SAXException

startPrefixMapping

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

Specified by:

startPrefixMapping in interface ContentHandler

Throws:

SAXException

endPrefixMapping

public void endPrefixMapping(String prefix)
                      throws SAXException

Specified by:

endPrefixMapping in interface ContentHandler

Throws:

SAXException

startElement

public void startElement(String uri,
                String localName,
                String qName,
                Attributes atts)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Throws:

SAXException

endElement

public void endElement(String uri,
              String localName,
              String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Throws:

SAXException

characters

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

Specified by:

characters in interface ContentHandler

Throws:

SAXException

ignorableWhitespace

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

Specified by:

ignorableWhitespace in interface ContentHandler

Throws:

SAXException

processingInstruction

public void processingInstruction(String target,
                         String data)
                           throws SAXException

Specified by:

processingInstruction in interface ContentHandler

Throws:

SAXException

skippedEntity

public void skippedEntity(String name)
                   throws SAXException

Specified by:

skippedEntity in interface ContentHandler

Throws:

SAXException

startDTD

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

Specified by:

startDTD in interface LexicalHandler

Throws:

SAXException

endDTD

public void endDTD()
            throws SAXException

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

comment

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

Specified by:

comment in interface LexicalHandler

Throws:

SAXException

warning

public void warning(SAXParseException exception)
             throws SAXException

Specified by:

warning in interface ErrorHandler

Throws:

SAXException

error

public void error(SAXParseException exception)
           throws SAXException

Specified by:

error in interface ErrorHandler

Throws:

SAXException

fatalError

public void fatalError(SAXParseException exception)
                throws SAXException

Specified by:

fatalError in interface ErrorHandler

Throws:

SAXException