Class NQuadsWriter

java.lang.Object

org.eclipse.rdf4j.rio.helpers.AbstractRDFWriter

org.eclipse.rdf4j.rio.ntriples.NTriplesWriter

org.eclipse.rdf4j.rio.nquads.NQuadsWriter

All Implemented Interfaces:

CharSink, Sink, RDFHandler, RDFWriter

public class NQuadsWriter
extends NTriplesWriter

RDFWriter implementation for the N-Quads RDF format.

Author:

Joshua Shinavier

Field Summary

Fields inherited from class NTriplesWriter

writer

Modifier and Type	Field	Description
protected final Writer	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
NQuadsWriter(OutputStream outputStream)
NQuadsWriter(Writer writer)

Method Summary

Modifier and Type	Method	Description
void	consumeStatement(Statement st)	Consume a statement.
RDFFormat	getRDFFormat()	Gets the RDF format that this RDFWriter uses.

Methods inherited from class NTriplesWriter

endRDF, getSupportedSettings, getWriter, handleComment, handleNamespace, startRDF, writeValue

Modifier and Type	Method	Description
void	endRDF()	Signals the end of the RDF data.
final 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.
void	startRDF()	Signals the start of the RDF data.
protected void	writeValue(Value value)	Writes the N-Triples representation of the given Value.

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

Methods inherited from interface Sink

acceptsFileFormat

Modifier and Type	Method	Description
default boolean	acceptsFileFormat(FileFormat format)	Check if this Sink accepts the supplied FileFormat.

Constructor Details

NQuadsWriter

public NQuadsWriter(OutputStream outputStream)

NQuadsWriter

public NQuadsWriter(Writer writer)

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 NTriplesWriter

consumeStatement

public void consumeStatement(Statement st)
                      throws RDFHandlerException

Description copied from class: AbstractRDFWriter

Consume a statement.

Extending classes must override this method instead of overriding AbstractRDFWriter.handleStatement(Statement) in order to benefit from automatic handling of RDF-star conversion or encoding.

Overrides:

consumeStatement in class NTriplesWriter

Parameters:

st - the statement to consume.

Throws:

RDFHandlerException