2005/5/9

org::xml::sax::InputSource Class Reference

Inheritance diagram for org::xml::sax::InputSource:

Detailed Description

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 allows a SAX application to encapsulate information about an input source in a single object, which may include a public identifier, a system identifier, a byte stream (possibly with a specified encoding), and/or a character stream.

There are two places that the application can deliver an input source to the parser: as the argument to the Parser::parse method, or as the return value of the EntityResolver::resolveEntity method.

The SAX parser will use the InputSource object to determine how to read XML input. If there is a character stream available, the parser will read that stream directly, disregarding any text encoding declaration found in that stream. If there is no character stream, but there is a byte stream, the parser will use that byte stream, using the encoding specified in the InputSource or else (if no encoding is specified) autodetecting the character encoding using an algorithm such as the one in the XML specification. If neither a character stream nor a byte stream is available, the parser will attempt to open a URI connection to the resource identified by the system identifier.

An InputSource object belongs to the application: the SAX parser shall never modify it in any way (it may modify a copy if necessary). However, standard processing of both byte and character streams is to close them on as part of end-of-parse cleanup, so applications should not attempt to re-use such streams after they have been handed to a parser.

Since:

SAX 1.0

See also:

org::xml::sax::XMLReader::parse(org.xml.sax.InputSource)

org::xml::sax::EntityResolver::resolveEntity

java.io.InputStream

java.io.Reader

Public Member Functions
	InputSource ()
	Zero-argument default constructor.
	InputSource (IN(::acdk::lang::RString) sysId)
	Create a new input source with a system identifier.
	InputSource (IN(::acdk::io::RReader) reader)
	Create a new input source with a byte stream.
virtual void	setPublicId (IN(::acdk::lang::RString) s)
	Set the public identifier for this input source.
virtual::acdk::lang::RString	getPublicId ()
	Get the public identifier for this input source.
virtual void	setSystemId (IN(::acdk::lang::RString) s)
	Set the system identifier for this input source.
virtual::acdk::lang::RString	getSystemId ()
	Get the system identifier for this input source.
virtual void	setEncoding (IN(::acdk::lang::RString) s)
	Set the character encoding, if known.
virtual::acdk::lang::RString	getEncoding ()
	Get the character encoding for a byte stream or URI.
virtual void	setByteStream (IN(::acdk::io::RReader) reader)
	Set the byte stream for this input source.
virtual::acdk::io::RReader	getByteStream ()
	Get the byte stream for this input source.
Private Attributes
::acdk::lang::RString	_publicId
::acdk::lang::RString	_systemId
::acdk::lang::RString	_encoding
::acdk::io::RReader	_in

Constructor & Destructor Documentation

org::xml::sax::InputSource::InputSource (   )  [inline]

Zero-argument default constructor. See also: setPublicId setSystemId setByteStream #setCharacterStream setEncoding

org::xml::sax::InputSource::InputSource (  IN(::acdk::lang::RString)  sysId  )  [inline]

Create a new input source with a system identifier. Applications may use setPublicId to include a public identifier as well, or setEncoding to specify the character encoding, if known. If the system identifier is a URL, it must be fully resolved (it may not be a relative URL). Parameters: systemId  The system identifier (URI). See also: setPublicId setSystemId setByteStream setEncoding #setCharacterStream

org::xml::sax::InputSource::InputSource (  IN(::acdk::io::RReader)  reader  )  [inline]

Create a new input source with a byte stream. Application writers should use setSystemId() to provide a base for resolving relative URIs, may use setPublicId to include a public identifier, and may use setEncoding to specify the object's character encoding. Parameters: reader  The raw byte stream containing the document. See also: setPublicId setSystemId setEncoding setByteStream #setCharacterStream

Member Function Documentation

virtual ::acdk::io::RReader org::xml::sax::InputSource::getByteStream (   )  [inline]

Get the byte stream for this input source. The getEncoding method will return the character encoding for this byte stream, or null if unknown. Returns: The byte stream, or null if none was supplied. See also: getEncoding setByteStream

virtual ::acdk::lang::RString org::xml::sax::InputSource::getEncoding (   )  [inline]

Get the character encoding for a byte stream or URI. This value will be ignored when the application provides a character stream. Returns: The encoding, or null if none was supplied. See also: setByteStream getSystemId getByteStream

virtual ::acdk::lang::RString org::xml::sax::InputSource::getPublicId (   )  [inline]

Get the public identifier for this input source. Returns: The public identifier, or null if none was supplied. See also: setPublicId

virtual ::acdk::lang::RString org::xml::sax::InputSource::getSystemId (   )  [inline]

Get the system identifier for this input source. The getEncoding method will return the character encoding of the object pointed to, or null if unknown. If the system ID is a URL, it will be fully resolved. Returns: The system identifier, or null if none was supplied. See also: setSystemId getEncoding

virtual void org::xml::sax::InputSource::setByteStream (  IN(::acdk::io::RReader)  reader  )  [inline, virtual]

Set the byte stream for this input source. The SAX parser will ignore this if there is also a character stream specified, but it will use a byte stream in preference to opening a URI connection itself. If the application knows the character encoding of the byte stream, it should set it with the setEncoding method. Parameters: byteStream  A byte stream containing an XML document or other entity. See also: setEncoding getByteStream getEncoding java.io.InputStream

virtual void org::xml::sax::InputSource::setEncoding (  IN(::acdk::lang::RString)  s  )  [inline, virtual]

Set the character encoding, if known. The encoding must be a string acceptable for an XML encoding declaration (see section 4.3.3 of the XML 1.0 recommendation). This method has no effect when the application provides a character stream. Parameters: encoding  A string describing the character encoding. See also: setSystemId setByteStream getEncoding

virtual void org::xml::sax::InputSource::setPublicId (  IN(::acdk::lang::RString)  s  )  [inline, virtual]

Set the public identifier for this input source. The public identifier is always optional: if the application writer includes one, it will be provided as part of the location information. Parameters: publicId  The public identifier as a string. See also: getPublicId org::xml::sax::Locator::getPublicId org::xml::sax::SAXParseException::getPublicId

virtual void org::xml::sax::InputSource::setSystemId (  IN(::acdk::lang::RString)  s  )  [inline, virtual]

Set the system identifier for this input source. The system identifier is optional if there is a byte stream or a character stream, but it is still useful to provide one, since the application can use it to resolve relative URIs and can include it in error messages and warnings (the parser will attempt to open a connection to the URI only if there is no byte stream or character stream specified). If the application knows the character encoding of the object pointed to by the system identifier, it can register the encoding using the setEncoding method. If the system identifier is a URL, it must be fully resolved (it may not be a relative URL). Parameters: systemId  The system identifier as a string. See also: setEncoding getSystemId org::xml::sax::Locator::getSystemId org::xml::sax::SAXParseException::getSystemId

Member Data Documentation

::acdk::lang::RString org::xml::sax::InputSource::_encoding [private]

::acdk::io::RReader org::xml::sax::InputSource::_in [private]

::acdk::lang::RString org::xml::sax::InputSource::_publicId [private]

::acdk::lang::RString org::xml::sax::InputSource::_systemId [private]