Package org.eclipse.rdf4j.rio.ntriples
Class NTriplesWriter
java.lang.Object
org.eclipse.rdf4j.rio.helpers.AbstractRDFWriter
org.eclipse.rdf4j.rio.ntriples.NTriplesWriter
- All Implemented Interfaces:
CharSink
,Sink
,RDFHandler
,RDFWriter
- Direct Known Subclasses:
NQuadsWriter
An implementation of the RDFWriter interface that writes RDF documents in N-Triples format. The N-Triples format is
defined in this section of the RDF Test Cases document.
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Field Summary
Fields inherited from class org.eclipse.rdf4j.rio.helpers.AbstractRDFWriter
namespaceTable, statementConsumer
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Constructor Summary
ConstructorDescriptionCreates a new NTriplesWriter that will write to the supplied OutputStream.NTriplesWriter
(Writer writer) Creates a new NTriplesWriter that will write to the supplied Writer. -
Method Summary
Modifier and TypeMethodDescriptionprotected void
Consume a statement.void
endRDF()
Signals the end of the RDF data.Gets the RDF format that this RDFWriter uses.final Collection
<RioSetting<?>> 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 givenValue
.Methods inherited from class org.eclipse.rdf4j.rio.helpers.AbstractRDFWriter
checkWritingStarted, getFileFormat, getWriterConfig, handleStatement, isWritingStarted, set, setWriterConfig
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface org.eclipse.rdf4j.common.io.Sink
acceptsFileFormat, getFileFormat
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Field Details
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writer
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Constructor Details
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NTriplesWriter
Creates a new NTriplesWriter that will write to the supplied OutputStream.- Parameters:
out
- The OutputStream to write the N-Triples document to.
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NTriplesWriter
Creates a new NTriplesWriter that will write to the supplied Writer.- Parameters:
writer
- The Writer to write the N-Triples document to.
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Method Details
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getWriter
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getRDFFormat
Description copied from interface:RDFWriter
Gets the RDF format that this RDFWriter uses.- Specified by:
getRDFFormat
in interfaceRDFWriter
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startRDF
Description copied from interface:RDFHandler
Signals the start of the RDF data. This method is called before any data is reported.- Specified by:
startRDF
in interfaceRDFHandler
- Overrides:
startRDF
in classAbstractRDFWriter
- Throws:
RDFHandlerException
- If the RDF handler has encountered an unrecoverable error.
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endRDF
Description copied from interface:RDFHandler
Signals the end of the RDF data. This method is called when all data has been reported.- Specified by:
endRDF
in interfaceRDFHandler
- Throws:
RDFHandlerException
- If the RDF handler has encountered an unrecoverable error.
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handleNamespace
Description copied from interface:RDFHandler
Handles a namespace declaration/definition. A namespace declaration associates a (short) prefix string with the namespace's URI. The prefix for default namespaces, which do not have an associated prefix, are represented as empty strings.- Specified by:
handleNamespace
in interfaceRDFHandler
- Overrides:
handleNamespace
in classAbstractRDFWriter
- Parameters:
prefix
- The prefix for the namespace, or an empty string in case of a default namespace.name
- The URI that the prefix maps to.
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consumeStatement
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 classAbstractRDFWriter
- Parameters:
st
- the statement to consume.
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handleComment
Description copied from interface:RDFHandler
Handles a comment.- Specified by:
handleComment
in interfaceRDFHandler
- Parameters:
comment
- The comment.- Throws:
RDFHandlerException
- If the RDF handler has encountered an unrecoverable error.
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getSupportedSettings
- Specified by:
getSupportedSettings
in interfaceRDFWriter
- Overrides:
getSupportedSettings
in classAbstractRDFWriter
- Returns:
- A collection of
RioSetting
s that are supported by this RDFWriter.
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writeValue
Writes the N-Triples representation of the givenValue
.- Parameters:
value
- The value to write.- Throws:
IOException
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