程序包 ohos.org.xml.sax

类 HandlerBase

java.lang.Object

ohos.org.xml.sax.HandlerBase

所有已实现的接口:

DocumentHandler, DTDHandler, EntityResolver, ErrorHandler

已过时。

This class works with the deprecated DocumentHandler interface. It has been replaced by the SAX2 DefaultHandler class.

@Deprecated
public class HandlerBase
extends Object
implements EntityResolver, DTDHandler, DocumentHandler, ErrorHandler

Default base class for handlers.

This module, both source code and documentation, is in the Public Domain, and comes with NO WARRANTY. See http://www.saxproject.org for further information.

This class implements the default behaviour for four SAX1 interfaces: EntityResolver, DTDHandler, DocumentHandler, and ErrorHandler. It is now obsolete, but is included in SAX2 to support legacy SAX1 applications. SAX2 applications should use the DefaultHandler class instead.

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.

Note that the use of this class is optional.

从以下版本开始:

SAX 1.0

另请参阅:

EntityResolver, DTDHandler, DocumentHandler, ErrorHandler

构造器概要

构造器

构造器	说明
HandlerBase()	已过时。

方法概要

限定符和类型	方法	说明
void	characters(char[] ch, int start, int length)	已过时。
void	endDocument()	已过时。
void	endElement(String name)	已过时。
void	error(SAXParseException e)	已过时。
void	fatalError(SAXParseException e)	已过时。
void	ignorableWhitespace(char[] ch, int start, int length)	已过时。
void	notationDecl(String name, String publicId, String systemId)	已过时。
void	processingInstruction(String target, String data)	已过时。
InputSource	resolveEntity(String publicId, String systemId)	已过时。
void	setDocumentLocator(Locator locator)	已过时。
void	startDocument()	已过时。
void	startElement(String name, AttributeList attributes)	已过时。
void	unparsedEntityDecl(String name, String publicId, String systemId, String notationName)	已过时。
void	warning(SAXParseException e)	已过时。

从类继承的方法 java.lang.Object

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

构造器详细资料

HandlerBase

@Deprecated
public HandlerBase()

已过时。

方法详细资料

resolveEntity

@Deprecated
public InputSource resolveEntity(String publicId,
                                 String systemId)
                          throws SAXException

已过时。

Resolve an external entity.

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.

指定者:

resolveEntity 在接口中 EntityResolver

参数:

publicId - The public identifer, or null if none is available.

systemId - The system identifier provided in the XML document.

返回:

The new input source, or null to require the default behaviour.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

EntityResolver.resolveEntity(java.lang.String, java.lang.String)

notationDecl

@Deprecated
public void notationDecl(String name,
                         String publicId,
                         String systemId)

已过时。

Receive notification of a notation declaration.

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.

指定者:

notationDecl 在接口中 DTDHandler

参数:

name - The notation name.

publicId - The notation public identifier, or null if not available.

systemId - The notation system identifier.

另请参阅:

DTDHandler.notationDecl(java.lang.String, java.lang.String, java.lang.String)

unparsedEntityDecl

@Deprecated
public void unparsedEntityDecl(String name,
                               String publicId,
                               String systemId,
                               String notationName)

已过时。

Receive notification of an unparsed entity declaration.

By default, do nothing. Application writers may override this method in a subclass to keep track of the unparsed entities declared in a document.

指定者:

unparsedEntityDecl 在接口中 DTDHandler

参数:

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.

另请参阅:

DTDHandler.unparsedEntityDecl(java.lang.String, java.lang.String, java.lang.String, java.lang.String)

setDocumentLocator

@Deprecated
public void setDocumentLocator(Locator locator)

已过时。

Receive a Locator object for document events.

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.

指定者:

setDocumentLocator 在接口中 DocumentHandler

参数:

locator - A locator for all SAX document events.

另请参阅:

DocumentHandler.setDocumentLocator(ohos.org.xml.sax.Locator), Locator

startDocument

@Deprecated
public void startDocument()
                   throws SAXException

已过时。

Receive notification of the beginning of the document.

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).

指定者:

startDocument 在接口中 DocumentHandler

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.startDocument()

endDocument

@Deprecated
public void endDocument()
                 throws SAXException

已过时。

Receive notification of the end of the document.

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).

指定者:

endDocument 在接口中 DocumentHandler

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.endDocument()

startElement

@Deprecated
public void startElement(String name,
                         AttributeList attributes)
                  throws SAXException

已过时。

Receive notification of the start of an element.

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).

指定者:

startElement 在接口中 DocumentHandler

参数:

name - The element type name.

attributes - The specified or defaulted attributes.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.startElement(java.lang.String, ohos.org.xml.sax.AttributeList)

endElement

@Deprecated
public void endElement(String name)
                throws SAXException

已过时。

Receive notification of the end of an element.

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).

指定者:

endElement 在接口中 DocumentHandler

参数:

name - the element name

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.endElement(java.lang.String)

characters

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

已过时。

Receive notification of character data inside an element.

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).

指定者:

characters 在接口中 DocumentHandler

参数:

ch - The characters.

start - The start position in the character array.

length - The number of characters to use from the character array.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.characters(char[], int, int)

ignorableWhitespace

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

已过时。

Receive notification of ignorable whitespace in element content.

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).

指定者:

ignorableWhitespace 在接口中 DocumentHandler

参数:

ch - The whitespace characters.

start - The start position in the character array.

length - The number of characters to use from the character array.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.ignorableWhitespace(char[], int, int)

processingInstruction

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

已过时。

Receive notification of a processing instruction.

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.

指定者:

processingInstruction 在接口中 DocumentHandler

参数:

target - The processing instruction target.

data - The processing instruction data, or null if none is supplied.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

DocumentHandler.processingInstruction(java.lang.String, java.lang.String)

warning

@Deprecated
public void warning(SAXParseException e)
             throws SAXException

已过时。

Receive notification of a parser warning.

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.

指定者:

warning 在接口中 ErrorHandler

参数:

e - The warning information encoded as an exception.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

ErrorHandler.warning(ohos.org.xml.sax.SAXParseException), SAXParseException

error

@Deprecated
public void error(SAXParseException e)
           throws SAXException

已过时。

Receive notification of a recoverable parser error.

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.

指定者:

error 在接口中 ErrorHandler

参数:

e - The warning information encoded as an exception.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

ErrorHandler.warning(ohos.org.xml.sax.SAXParseException), SAXParseException

fatalError

@Deprecated
public void fatalError(SAXParseException e)
                throws SAXException

已过时。

Report a fatal XML parsing error.

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.

指定者:

fatalError 在接口中 ErrorHandler

参数:

e - The error information encoded as an exception.

抛出:

SAXException - Any SAX exception, possibly wrapping another exception.

另请参阅:

ErrorHandler.fatalError(ohos.org.xml.sax.SAXParseException), SAXParseException