org.apache.xerces.xni

Interface XMLDocumentHandler

All Known Subinterfaces:

RevalidationHandler, XMLDocumentFilter, XMLDTDValidatorFilter

All Known Implementing Classes:

AbstractDOMParser, AbstractSAXParser, AbstractXMLDocumentParser, DefaultXMLDocumentHandler, DOMASBuilderImpl, DOMNormalizer, DOMParser, DOMParserImpl, SAXParser, SAXParserImpl.JAXPSAXParser, SchemaDOMParser, XIncludeHandler, XML11DTDValidator, XML11NamespaceBinder, XML11NSDTDValidator, XMLDocumentParser, XMLDTDValidator, XMLNamespaceBinder, XMLNSDTDValidator, XMLSchemaValidator, XPointerHandler

public interface XMLDocumentHandler

The document handler interface defines callback methods to report information items in XML documents. Parser components interested in document information implement this interface and are registered as the document handler on the document source.

Version:

$Id$

Author:

Andy Clark, IBM

Method Summary

Modifier and Type	Method and Description
void	characters(XMLString text, Augmentations augs) Character content.
void	comment(XMLString text, Augmentations augs) A comment.
void	doctypeDecl(String rootElement, String publicId, String systemId, Augmentations augs) Notifies of the presence of the DOCTYPE line in the document.
void	emptyElement(QName element, XMLAttributes attributes, Augmentations augs) An empty element.
void	endCDATA(Augmentations augs) The end of a CDATA section.
void	endDocument(Augmentations augs) The end of the document.
void	endElement(QName element, Augmentations augs) The end of an element.
void	endGeneralEntity(String name, Augmentations augs) This method notifies the end of a general entity.
XMLDocumentSource	getDocumentSource() Returns the document source.
void	ignorableWhitespace(XMLString text, Augmentations augs) Ignorable whitespace.
void	processingInstruction(String target, XMLString data, Augmentations augs) A processing instruction.
void	setDocumentSource(XMLDocumentSource source) Sets the document source.
void	startCDATA(Augmentations augs) The start of a CDATA section.
void	startDocument(XMLLocator locator, String encoding, NamespaceContext namespaceContext, Augmentations augs) The start of the document.
void	startElement(QName element, XMLAttributes attributes, Augmentations augs) The start of an element.
void	startGeneralEntity(String name, XMLResourceIdentifier identifier, String encoding, Augmentations augs) This method notifies the start of a general entity.
void	textDecl(String version, String encoding, Augmentations augs) Notifies of the presence of a TextDecl line in an entity.
void	xmlDecl(String version, String encoding, String standalone, Augmentations augs) Notifies of the presence of an XMLDecl line in the document.

Method Detail

startDocument

void startDocument(XMLLocator locator,
                   String encoding,
                   NamespaceContext namespaceContext,
                   Augmentations augs)
            throws XNIException

The start of the document.

Parameters:

locator - The document locator, or null if the document location cannot be reported during the parsing of this document. However, it is strongly recommended that a locator be supplied that can at least report the system identifier of the document.

encoding - The auto-detected IANA encoding name of the entity stream. This value will be null in those situations where the entity encoding is not auto-detected (e.g. internal entities or a document entity that is parsed from a java.io.Reader).

namespaceContext - The namespace context in effect at the start of this document. This object represents the current context. Implementors of this class are responsible for copying the namespace bindings from the the current context (and its parent contexts) if that information is important.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

xmlDecl

void xmlDecl(String version,
             String encoding,
             String standalone,
             Augmentations augs)
      throws XNIException

Notifies of the presence of an XMLDecl line in the document. If present, this method will be called immediately following the startDocument call.

Parameters:

version - The XML version.

encoding - The IANA encoding name of the document, or null if not specified.

standalone - The standalone value, or null if not specified.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

doctypeDecl

void doctypeDecl(String rootElement,
                 String publicId,
                 String systemId,
                 Augmentations augs)
          throws XNIException

Notifies of the presence of the DOCTYPE line in the document.

Parameters:

rootElement - The name of the root element.

publicId - The public identifier if an external DTD or null if the external DTD is specified using SYSTEM.

systemId - The system identifier if an external DTD, null otherwise.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

comment

void comment(XMLString text,
             Augmentations augs)
      throws XNIException

A comment.

Parameters:

text - The text in the comment.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by application to signal an error.

processingInstruction

void processingInstruction(String target,
                           XMLString data,
                           Augmentations augs)
                    throws XNIException

A processing instruction. Processing instructions consist of a target name and, optionally, text data. The data is only meaningful to the application.

Typically, a processing instruction's data will contain a series of pseudo-attributes. These pseudo-attributes follow the form of element attributes but are not parsed or presented to the application as anything other than text. The application is responsible for parsing the data.

Parameters:

target - The target.

data - The data or null if none specified.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

startElement

void startElement(QName element,
                  XMLAttributes attributes,
                  Augmentations augs)
           throws XNIException

The start of an element.

Parameters:

element - The name of the element.

attributes - The element attributes.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

emptyElement

void emptyElement(QName element,
                  XMLAttributes attributes,
                  Augmentations augs)
           throws XNIException

An empty element.

Parameters:

element - The name of the element.

attributes - The element attributes.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

startGeneralEntity

void startGeneralEntity(String name,
                        XMLResourceIdentifier identifier,
                        String encoding,
                        Augmentations augs)
                 throws XNIException

This method notifies the start of a general entity.

Note: This method is not called for entity references appearing as part of attribute values.

Parameters:

name - The name of the general entity.

identifier - The resource identifier.

encoding - The auto-detected IANA encoding name of the entity stream. This value will be null in those situations where the entity encoding is not auto-detected (e.g. internal entities or a document entity that is parsed from a java.io.Reader).

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

textDecl

void textDecl(String version,
              String encoding,
              Augmentations augs)
       throws XNIException

Notifies of the presence of a TextDecl line in an entity. If present, this method will be called immediately following the startEntity call.

Note: This method will never be called for the document entity; it is only called for external general entities referenced in document content.

Note: This method is not called for entity references appearing as part of attribute values.

Parameters:

version - The XML version, or null if not specified.

encoding - The IANA encoding name of the entity.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

endGeneralEntity

void endGeneralEntity(String name,
                      Augmentations augs)
               throws XNIException

This method notifies the end of a general entity.

Note: This method is not called for entity references appearing as part of attribute values.

Parameters:

name - The name of the entity.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

characters

void characters(XMLString text,
                Augmentations augs)
         throws XNIException

Character content.

Parameters:

text - The content.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

ignorableWhitespace

void ignorableWhitespace(XMLString text,
                         Augmentations augs)
                  throws XNIException

Ignorable whitespace. For this method to be called, the document source must have some way of determining that the text containing only whitespace characters should be considered ignorable. For example, the validator can determine if a length of whitespace characters in the document are ignorable based on the element content model.

Parameters:

text - The ignorable whitespace.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

endElement

void endElement(QName element,
                Augmentations augs)
         throws XNIException

The end of an element.

Parameters:

element - The name of the element.

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

startCDATA

void startCDATA(Augmentations augs)
         throws XNIException

The start of a CDATA section.

Parameters:

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

endCDATA

void endCDATA(Augmentations augs)
       throws XNIException

The end of a CDATA section.

Parameters:

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

endDocument

void endDocument(Augmentations augs)
          throws XNIException

The end of the document.

Parameters:

augs - Additional information that may include infoset augmentations

Throws:

XNIException - Thrown by handler to signal an error.

setDocumentSource

void setDocumentSource(XMLDocumentSource source)

Sets the document source.

getDocumentSource

XMLDocumentSource getDocumentSource()

Returns the document source.