Package org.apache.torque.generator.source.stream

Class XmlSourceSaxHandler

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.apache.torque.generator.source.stream.XmlSourceSaxHandler

All Implemented Interfaces:

ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class XmlSourceSaxHandler
extends DefaultHandler

A SAX Handler for creating a source element tree from xml.

Constructor Summary

Constructors

Constructor	Description
XmlSourceSaxHandler(EntityReferences entityReferences)	Constructor.

Method Summary

Modifier and Type	Method	Description
void	characters(char[] ch, int start, int length)
void	endElement(String uri, String localName, String qName)
void	error(SAXParseException exception)
void	fatalError(SAXParseException exception)
SourceElement	getRoot()	Returns the root element of the tree.
void	ignorableWhitespace(char[] ch, int start, int length)
InputSource	resolveEntity(String publicId, String systemId)	EntityResolver implementation.
void	startElement(String uri, String localName, String qName, Attributes attributes)
void	warning(SAXParseException exception)

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endDocument, endPrefixMapping, notationDecl, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Constructor Detail

XmlSourceSaxHandler

public XmlSourceSaxHandler(EntityReferences entityReferences)

Constructor.

Parameters:

entityReferences - the known entity references, not null.

Method Detail

startElement

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

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class DefaultHandler

Throws:

SAXException

endElement

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

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class DefaultHandler

Throws:

SAXException

characters

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

Specified by:

characters in interface ContentHandler

Overrides:

characters in class DefaultHandler

Throws:

SAXException

ignorableWhitespace

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

Specified by:

ignorableWhitespace in interface ContentHandler

Overrides:

ignorableWhitespace in class DefaultHandler

Throws:

SAXException

resolveEntity

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

EntityResolver implementation. Called by the XML parser

Specified by:

resolveEntity in interface EntityResolver

Overrides:

resolveEntity in class DefaultHandler

Parameters:

publicId - The public identifier of the external entity.

systemId - The system identifier of the external entity.

Returns:

an InputSource for the entity, or null if the URI is not known.

Throws:

SAXException

IOException

See Also:

ConfigurationEntityResolver.resolveEntity(String, String)

getRoot

public SourceElement getRoot()

Returns the root element of the tree.

Returns:

the root element (may be null if no elements were in the xml) or null if the xml was not yet parsed.

error

public void error(SAXParseException exception)
           throws SAXParseException

Specified by:

error in interface ErrorHandler

Overrides:

error in class DefaultHandler

Throws:

SAXParseException

fatalError

public void fatalError(SAXParseException exception)
                throws SAXParseException

Specified by:

fatalError in interface ErrorHandler

Overrides:

fatalError in class DefaultHandler

Throws:

SAXParseException

warning

public void warning(SAXParseException exception)
             throws SAXParseException

Specified by:

warning in interface ErrorHandler

Overrides:

warning in class DefaultHandler

Throws:

SAXParseException