org.openrdf.rio.rdfxml
Class RdfXmlWriter

java.lang.Object
  org.openrdf.rio.rdfxml.RdfXmlWriter

All Implemented Interfaces:

RdfDocumentWriter

Direct Known Subclasses:

AbbreviatedRdfXmlWriter

public class RdfXmlWriter

extends Object

implements RdfDocumentWriter

An implementation of the RdfDocumentWriter interface that writes RDF documents in XML-serialized RDF format.

Field Summary

protected Map	_namespaceTable
protected Writer	_out
protected Set	_stylesheets
protected boolean	_writingStarted

Constructor Summary

RdfXmlWriter(OutputStream out)
Creates a new RdfXmlWriter that will write to the supplied OutputStream.

RdfXmlWriter(Writer out)
Creates a new RdfXmlWriter that will write to the supplied Writer.

Method Summary

protected void	_setNamespace(String prefix, String name, boolean fixedPrefix)
protected void	_writeAttribute(String attName, String value)
protected void	_writeAttribute(String namespace, String attName, String value)
protected void	_writeCharacterData(String chars)
protected void	_writeEndOfEmptyTag()
protected void	_writeEndOfStartTag()
protected void	_writeEndTag(String namespace, String localName)
protected void	_writeIndent()
protected void	_writeNewLine()
protected void	_writeStartOfStartTag(String namespace, String localName)
void	addStyleSheet(String href, String type)
void	addStyleSheet(String href, String type, String title, String media, String charset, boolean alternate) Associate a stylesheet with this XML document.
void	endDocument() Ends the document writing.
void	setNamespace(String prefix, String name) Sets a mapping from a namespace prefix to a namespace name.
void	startDocument() Starts the document writing.
void	writeComment(String comment) Writes a comment to the document.
void	writeStatement(Resource subj, URI pred, Value obj) Writes a statement to the document.

Methods inherited from class java.lang.Object

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

Field Detail

_out

protected Writer _out

_namespaceTable

protected Map _namespaceTable

_stylesheets

protected Set _stylesheets

_writingStarted

protected boolean _writingStarted

Constructor Detail

RdfXmlWriter

public RdfXmlWriter(OutputStream out)

Creates a new RdfXmlWriter that will write to the supplied OutputStream.

Parameters:

out - The OutputStream to write the RDF/XML document to.

RdfXmlWriter

public RdfXmlWriter(Writer out)

Creates a new RdfXmlWriter that will write to the supplied Writer.

Parameters:

out - The Writer to write the RDF/XML document to.

Method Detail

setNamespace

public void setNamespace(String prefix,
                         String name)

Description copied from interface: RdfDocumentWriter

Sets a mapping from a namespace prefix to a namespace name. Some implementations of this interface may require that namespace are set before the document writing starts (i.e. before startDocument() is called). Note that a mapping can only be defined once for a given namespace name. The RdfDocumentWriter will ignore an attempt to define a mapping for a namespace it already has a mapping for.

Specified by:

setNamespace in interface RdfDocumentWriter

_setNamespace

protected void _setNamespace(String prefix,
                             String name,
                             boolean fixedPrefix)

startDocument

public void startDocument()
                   throws IOException

Description copied from interface: RdfDocumentWriter

Starts the document writing.

Specified by:

startDocument in interface RdfDocumentWriter

Throws:

IOException

endDocument

public void endDocument()
                 throws IOException

Description copied from interface: RdfDocumentWriter

Ends the document writing.

Specified by:

endDocument in interface RdfDocumentWriter

Throws:

IOException

writeStatement

public void writeStatement(Resource subj,
                           URI pred,
                           Value obj)
                    throws IOException

Description copied from interface: RdfDocumentWriter

Writes a statement to the document. The startDocument() method should have been called before.

Specified by:

writeStatement in interface RdfDocumentWriter

Throws:

IOException

writeComment

public void writeComment(String comment)
                  throws IOException

Description copied from interface: RdfDocumentWriter

Writes a comment to the document. An implementation may ignore these calls if the format doesn't support comments.

Specified by:

writeComment in interface RdfDocumentWriter

Throws:

IOException

_writeStartOfStartTag

protected void _writeStartOfStartTag(String namespace,
                                     String localName)
                              throws IOException

Throws:

IOException

_writeAttribute

protected void _writeAttribute(String attName,
                               String value)
                        throws IOException

Throws:

IOException

_writeAttribute

protected void _writeAttribute(String namespace,
                               String attName,
                               String value)
                        throws IOException

Throws:

IOException

_writeEndOfStartTag

protected void _writeEndOfStartTag()
                            throws IOException

Throws:

IOException

_writeEndOfEmptyTag

protected void _writeEndOfEmptyTag()
                            throws IOException

Throws:

IOException

_writeEndTag

protected void _writeEndTag(String namespace,
                            String localName)
                     throws IOException

Throws:

IOException

_writeCharacterData

protected void _writeCharacterData(String chars)
                            throws IOException

Throws:

IOException

_writeIndent

protected void _writeIndent()
                     throws IOException

Throws:

IOException

_writeNewLine

protected void _writeNewLine()
                      throws IOException

Throws:

IOException

addStyleSheet

public void addStyleSheet(String href,
                          String type,
                          String title,
                          String media,
                          String charset,
                          boolean alternate)

Associate a stylesheet with this XML document. See the relevant W3C Recommendation for an explanation of the parameters.

Parameters:

href - Required stylesheet attribute

type - Required stylesheet attribute

title - Optional stylesheet attribute

media - Optional stylesheet attribute

charset - Optional stylesheet attribute

alternate - Optional stylesheet attribute

addStyleSheet

public void addStyleSheet(String href,
                          String type)