Class TriGStarWriter

java.lang.Object

org.eclipse.rdf4j.rio.helpers.AbstractRDFWriter

org.eclipse.rdf4j.rio.turtle.TurtleWriter

org.eclipse.rdf4j.rio.trig.TriGWriter

org.eclipse.rdf4j.rio.trigstar.TriGStarWriter

All Implemented Interfaces:

CharSink, Sink, RDFHandler, RDFWriter

public class TriGStarWriter
extends TriGWriter

An extension of TriGWriter that writes RDF-star documents in the TriG-star format by including the RDF-star triples.

Author:

Pavel Mihaylov

Field Summary

Fields inherited from class TurtleWriter

baseIRI, bufferedStatements, lastWrittenPredicate, lastWrittenSubject, statementClosed, writer

Modifier and Type	Field	Description
protected ParsedIRI	baseIRI
protected Model	bufferedStatements
protected IRI	lastWrittenPredicate
protected Resource	lastWrittenSubject
protected boolean	statementClosed	Flag indicating whether the last written statement has been closed.
protected IndentingWriter	writer

Fields inherited from class AbstractRDFWriter

namespaceTable, statementConsumer

Modifier and Type	Field	Description
protected Map<String,String>	namespaceTable	Mapping from namespace prefixes to namespace names.
protected Consumer<Statement>	statementConsumer

Constructor Summary

Constructors

Constructor	Description
TriGStarWriter(OutputStream out)	Creates a new TriGStarWriter that will write to the supplied OutputStream.
TriGStarWriter(OutputStream out, ParsedIRI baseIRI)	Creates a new TriGStarWriter that will write to the supplied OutputStream using the supplied base IRI.
TriGStarWriter(Writer writer)	Creates a new TriGStarWriter that will write to the supplied Writer.
TriGStarWriter(Writer writer, ParsedIRI baseIRI)	Creates a new TriGStarWriter that will write to the supplied Writer using the supplied base IRI.

Method Summary

Modifier and Type	Method	Description
boolean	acceptsFileFormat(FileFormat format)	Check if this Sink accepts the supplied FileFormat.
RDFFormat	getRDFFormat()	Gets the RDF format that this RDFWriter uses.
protected void	writeTriple(Triple triple, boolean canShorten)

Methods inherited from class TriGWriter

closeActiveContext, endRDF, startRDF, writeNamespace, writeStatement

Modifier and Type	Method	Description
protected void	closeActiveContext()
void	endRDF()	Signals the end of the RDF data.
void	startRDF()	Signals the start of the RDF data.
protected void	writeNamespace(String prefix, String name)
protected void	writeStatement(Resource subj, IRI pred, Value obj, Resource context, boolean canShortenSubject, boolean canShortenObject)

Methods inherited from class TurtleWriter

closePreviousStatement, consumeStatement, getModelFactory, getSupportedSettings, getWriter, handleComment, handleNamespace, handleStatementInternal, setModelFactory, writeBase, writeBNode, writeBNode, writeCommentLine, writeLiteral, writePredicate, writeResource, writeResource, writeTripleRDFStar, writeURI, writeValue, writeValue

Modifier and Type	Method	Description
protected void	closePreviousStatement()
protected void	consumeStatement(Statement st)	Consume a statement.
protected ModelFactory	getModelFactory()
Collection<RioSetting<?>>	getSupportedSettings()
Writer	getWriter()	get the Writer used by this CharSink.
void	handleComment(String comment)	Handles a comment.
void	handleNamespace(String prefix, String name)	Handles a namespace declaration/definition.
protected void	handleStatementInternal(Statement st, boolean endRDFCalled, boolean canShortenSubjectBNode, boolean canShortenObjectBNode)	Internal method that differentiates between the pretty-print and streaming writer cases.
void	setModelFactory(ModelFactory modelFactory)	Set a ModelFactory to use for creating internal Models for statement processing/buffering purposes.
protected void	writeBase(String baseURI)
protected void	writeBNode(BNode bNode)	Deprecated. Use TurtleWriter.writeBNode(BNode, boolean) instead.
protected void	writeBNode(BNode bNode, boolean canShorten)
protected void	writeCommentLine(String line)
protected void	writeLiteral(Literal lit)
protected void	writePredicate(IRI predicate)
protected void	writeResource(Resource res)	Deprecated. Use TurtleWriter.writeResource(Resource, boolean) instead.
protected void	writeResource(Resource res, boolean canShorten)	Writes a Resource, optionally shortening it if it is an IRI and has a namespace definition that is suitable for use in this context for shortening or a BNode that has been confirmed to be able to be shortened in this context.
protected void	writeTripleRDFStar(Triple triple, boolean canShorten)
protected void	writeURI(IRI uri)
protected void	writeValue(Value val)	Deprecated. Use TurtleWriter.writeValue(Value, boolean) instead.
protected void	writeValue(Value val, boolean canShorten)	Writes a value, optionally shortening it if it is an IRI and has a namespace definition that is suitable for use in this context for shortening or a BNode that has been confirmed to be able to be shortened in this context.

Methods inherited from class AbstractRDFWriter

checkWritingStarted, getFileFormat, getWriterConfig, handleStatement, isWritingStarted, set, setWriterConfig

Modifier and Type	Method	Description
protected void	checkWritingStarted()	Verify that writing has started.
FileFormat	getFileFormat()	Get the FileFormat this sink uses.
WriterConfig	getWriterConfig()	Retrieves the current writer configuration as a single object.
void	handleStatement(Statement st)	Handles a statement.
protected boolean	isWritingStarted()	See if writing has started
<T> RDFWriter	set(RioSetting<T> setting, T value)	Set a setting on the writer, and return this writer object to allow chaining.
RDFWriter	setWriterConfig(WriterConfig config)	Sets all supplied writer configuration options.

Methods inherited from class Object

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

Constructor Details

TriGStarWriter

public TriGStarWriter(OutputStream out)

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

Parameters:

out - The OutputStream to write the TriG-star document to.

TriGStarWriter

public TriGStarWriter(OutputStream out,
 ParsedIRI baseIRI)

Creates a new TriGStarWriter that will write to the supplied OutputStream using the supplied base IRI.

Parameters:

out - The OutputStream to write the TriG-star document to.

baseIRI - The base IRI to use.

TriGStarWriter

public TriGStarWriter(Writer writer)

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

Parameters:

writer - The Writer to write the TriG-star document to.

TriGStarWriter

public TriGStarWriter(Writer writer,
 ParsedIRI baseIRI)

Creates a new TriGStarWriter that will write to the supplied Writer using the supplied base IRI.

Parameters:

writer - The Writer to write the TriG-star document to.

baseIRI - The base IRI to use.

Method Details

getRDFFormat

public RDFFormat getRDFFormat()

Description copied from interface: RDFWriter

Gets the RDF format that this RDFWriter uses.

Specified by:

getRDFFormat in interface RDFWriter

Overrides:

getRDFFormat in class TriGWriter

acceptsFileFormat

public boolean acceptsFileFormat(FileFormat format)

Description copied from interface: Sink

Check if this Sink accepts the supplied FileFormat.

Parameters:

format - the FileFormat to check.

Returns:

true if the sink accepts the supplied format, false otherwise.

writeTriple

protected void writeTriple(Triple triple,
 boolean canShorten)
                    throws IOException

Overrides:

writeTriple in class TurtleWriter

Throws:

IOException