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## 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
`XmlSourceSaxHandler(EntityReferences entityReferences)` Constructor.

Method Summary
`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`

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