public class DefaultHandler extends Object
This module, both source code and documentation, is in the Public Domain, and comes with NO WARRANTY.
This class is available as a convenience base class for SAX2 applications: it provides a default implementation for applications to extend.
Application writers can extend this class when they need to implement only part of an interface; parser writers can instantiate this class to provide default handlers when the application has not supplied its own.
| Constructor and Description |
|---|
DefaultHandler() |
| Modifier and Type | Method and Description |
|---|---|
void |
characters(char[] ch,
int start,
int length)
Receive notification of character data inside an element.
|
void |
endDocument()
Receive notification of the end of the document.
|
void |
endElement(String uri,
String localName,
String qName)
Receive notification of the end of an element.
|
void |
endPrefixMapping(String prefix)
Receive notification of the end of a Namespace mapping.
|
void |
error(SAXParseException e)
Receive notification of a recoverable parser error.
|
void |
fatalError(SAXParseException e)
Report a fatal XML parsing error.
|
void |
ignorableWhitespace(char[] ch,
int start,
int length)
Receive notification of ignorable whitespace in element content.
|
void |
notationDecl(String name,
String publicId,
String systemId)
Receive notification of a notation declaration.
|
void |
processingInstruction(String target,
String data)
Receive notification of a processing instruction.
|
InputSource |
resolveEntity(String publicId,
String systemId)
Resolve an external entity.
|
void |
setDocumentLocator(Locator locator)
Receive a Locator object for document events.
|
void |
skippedEntity(String name)
Receive notification of a skipped entity.
|
void |
startDocument()
Receive notification of the beginning of the document.
|
void |
startElement(String uri,
String localName,
String qName,
Attributes attributes)
Receive notification of the start of an element.
|
void |
startPrefixMapping(String prefix,
String uri)
Receive notification of the start of a Namespace mapping.
|
void |
unparsedEntityDecl(String name,
String publicIDd,
String systemId,
String notationName)
Receive notification of an unparsed entity declaration.
|
void |
warning(SAXParseException e)
Receive notification of a parser warning.
|
public InputSource resolveEntity(String publicId, String systemId) throws SAXException
Always return null, so that the parser will use the system identifier provided in the XML document. This method implements the SAX default behaviour: application writers can override it in a subclass to do special translations such as catalog lookups or URI redirection.
publicId - The public identifer, or null if none is
available.systemId - The system identifier provided in the XML
document.IOException - If there is an error setting
up the new input source.SAXException - Any SAX exception, possibly
wrapping another exception.EntityResolver.resolveEntity(java.lang.String, java.lang.String)public void notationDecl(String name, String publicId, String systemId) throws SAXException
By default, do nothing. Application writers may override this method in a subclass if they wish to keep track of the notations declared in a document.
name - The notation name.publicId - The notation public identifier, or null if not
available.systemId - The notation system identifier.SAXException - Any SAX exception, possibly
wrapping another exception.public void unparsedEntityDecl(String name, String publicIDd, String systemId, String notationName) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to keep track of the unparsed entities declared in a document.
name - The entity name.publicId - The entity public identifier, or null if not
available.systemId - The entity system identifier.notationName - The name of the associated notation.SAXException - Any SAX exception, possibly
wrapping another exception.public void setDocumentLocator(Locator locator)
By default, do nothing. Application writers may override this method in a subclass if they wish to store the locator for use with other document events.
locator - A locator for all SAX document events.Locatorpublic void startDocument()
throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions at the beginning of a document (such as allocating the root node of a tree or creating an output file).
SAXException - Any SAX exception, possibly
wrapping another exception.public void endDocument()
throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions at the end of a document (such as finalising a tree or closing an output file).
SAXException - Any SAX exception, possibly
wrapping another exception.public void startPrefixMapping(String prefix, String uri) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions at the start of each Namespace prefix scope (such as storing the prefix mapping).
prefix - The Namespace prefix being declared.uri - The Namespace URI mapped to the prefix.SAXException - Any SAX exception, possibly
wrapping another exception.public void endPrefixMapping(String prefix) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions at the end of each prefix mapping.
prefix - The Namespace prefix being declared.SAXException - Any SAX exception, possibly
wrapping another exception.public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions at the start of each element (such as allocating a new tree node or writing output to a file).
name - The element type name.attributes - The specified or defaulted attributes.SAXException - Any SAX exception, possibly
wrapping another exception.public void endElement(String uri, String localName, String qName) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions at the end of each element (such as finalising a tree node or writing output to a file).
name - The element type name.attributes - The specified or defaulted attributes.SAXException - Any SAX exception, possibly
wrapping another exception.public void characters(char[] ch,
int start,
int length)
throws SAXException
By default, do nothing. Application writers may override this method to take specific actions for each chunk of character data (such as adding the data to a node or buffer, or printing it to a file).
ch - The characters.start - The start position in the character array.length - The number of characters to use from the
character array.SAXException - Any SAX exception, possibly
wrapping another exception.public void ignorableWhitespace(char[] ch,
int start,
int length)
throws SAXException
By default, do nothing. Application writers may override this method to take specific actions for each chunk of ignorable whitespace (such as adding data to a node or buffer, or printing it to a file).
ch - The whitespace characters.start - The start position in the character array.length - The number of characters to use from the
character array.SAXException - Any SAX exception, possibly
wrapping another exception.public void processingInstruction(String target, String data) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions for each processing instruction, such as setting status variables or invoking other methods.
target - The processing instruction target.data - The processing instruction data, or null if
none is supplied.SAXException - Any SAX exception, possibly
wrapping another exception.public void skippedEntity(String name) throws SAXException
By default, do nothing. Application writers may override this method in a subclass to take specific actions for each processing instruction, such as setting status variables or invoking other methods.
name - The name of the skipped entity.SAXException - Any SAX exception, possibly
wrapping another exception.public void warning(SAXParseException e) throws SAXException
The default implementation does nothing. Application writers may override this method in a subclass to take specific actions for each warning, such as inserting the message in a log file or printing it to the console.
e - The warning information encoded as an exception.SAXException - Any SAX exception, possibly
wrapping another exception.SAXParseExceptionpublic void error(SAXParseException e) throws SAXException
The default implementation does nothing. Application writers may override this method in a subclass to take specific actions for each error, such as inserting the message in a log file or printing it to the console.
e - The warning information encoded as an exception.SAXException - Any SAX exception, possibly
wrapping another exception.SAXParseExceptionpublic void fatalError(SAXParseException e) throws SAXException
The default implementation throws a SAXParseException. Application writers may override this method in a subclass if they need to take specific actions for each fatal error (such as collecting all of the errors into a single report): in any case, the application must stop all regular processing when this method is invoked, since the document is no longer reliable, and the parser may no longer report parsing events.
e - The error information encoded as an exception.SAXException - Any SAX exception, possibly
wrapping another exception.SAXParseExceptionCopyright © 2012 code4tv.com. All Rights Reserved.