Module org.apache.jena.arq

Package org.apache.jena.riot.system

Class StreamRDFWriter

java.lang.Object

org.apache.jena.riot.system.StreamRDFWriter

public class StreamRDFWriter
extends Object

Write RDF in a streaming fashion. RDFDataMgr operations do not provide this guarantee. See RDFWriterRegistry for general purpose writers. StreamRDFWriter returns the same writer as RDFWriterRegistry if the RDFFormat is a streaming format.

See Also:

• RDFDataMgr
• RDFWriterRegistry

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	StreamRDFWriter.WriterRegistry<T>	Writer registry

Constructor Summary

Constructors

Constructor	Description
StreamRDFWriter()

Method Summary

Modifier and Type	Method	Description
static RDFFormat	defaultSerialization(Lang lang)	Return the format registered as the default for the language
static StreamRDF	getWriterStream(OutputStream output, Lang lang)	Get a StreamRDF destination that will output in syntax Lang and is guaranteed to do so in a scaling, streaming fashion.
static StreamRDF	getWriterStream(OutputStream output, Lang lang, Context context)	Get a StreamRDF destination that will output in syntax Lang and is guaranteed to do so in a scaling, streaming fashion.
static StreamRDF	getWriterStream(OutputStream output, RDFFormat format)	Get a StreamRDF destination that will output in syntax RDFFormat and is guaranteed to do so in a scaling, streaming fashion.
static StreamRDF	getWriterStream(OutputStream output, RDFFormat format, Context context)	Get a StreamRDF destination that will output in syntax RDFFormat and is guaranteed to do so in a scaling, streaming fashion.
static void	register(Lang lang, RDFFormat format)	Register the default serialization for the language (replace any existing registration).
static void	register(RDFFormat serialization, StreamRDFWriterFactory streamWriterFactory)	Register the serialization for datasets and it's associated factory
static Collection<RDFFormat>	registered()
static boolean	registered(Lang lang)
static boolean	registered(RDFFormat format)
static void	write(OutputStream output, org.apache.jena.graph.Graph graph, Lang lang, Context context)	Write a Graph in streaming fashion
static void	write(OutputStream output, org.apache.jena.graph.Graph graph, RDFFormat format)	Write a Graph in streaming fashion
static void	write(OutputStream output, org.apache.jena.graph.Graph graph, RDFFormat format, Context context)	Write a Graph in streaming fashion
static void	write(OutputStream output, DatasetGraph datasetGraph, Lang lang)	Write a DatasetGraph in streaming fashion
static void	write(OutputStream output, DatasetGraph datasetGraph, Lang lang, Context context)	Write a DatasetGraph in streaming fashion
static void	write(OutputStream output, DatasetGraph datasetGraph, RDFFormat format, Context context)	Write a DatasetGraph in streaming fashion

Methods inherited from class java.lang.Object

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

Constructor Details

StreamRDFWriter

public StreamRDFWriter()

Method Details

register

public static void register(Lang lang,
 RDFFormat format)

Register the default serialization for the language (replace any existing registration).

Parameters:

lang - Languages

format - The serialization format to use when the language is used for writing.

register

public static void register(RDFFormat serialization,
 StreamRDFWriterFactory streamWriterFactory)

Register the serialization for datasets and it's associated factory

Parameters:

serialization - RDFFormat for the output format.

streamWriterFactory - Source of writer engines

defaultSerialization

public static RDFFormat defaultSerialization(Lang lang)

Return the format registered as the default for the language

getWriterStream

public static StreamRDF getWriterStream(OutputStream output,
 Lang lang)

Get a StreamRDF destination that will output in syntax Lang and is guaranteed to do so in a scaling, streaming fashion.

Parameters:

output - OutputStream

lang - The syntax

Returns:

StreamRDF, or null if Lang does not have a streaming format.

See Also:

• StreamRDFOps.graphToStream(org.apache.jena.graph.Graph, org.apache.jena.riot.system.StreamRDF)
• StreamRDFOps.datasetToStream(org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.riot.system.StreamRDF)

getWriterStream

public static StreamRDF getWriterStream(OutputStream output,
 Lang lang,
 Context context)

Get a StreamRDF destination that will output in syntax Lang and is guaranteed to do so in a scaling, streaming fashion.

Parameters:

output - OutputStream

lang - The syntax

context -

Returns:

StreamRDF, or null if Lang does not have a streaming format.

See Also:

• StreamRDFOps.graphToStream(org.apache.jena.graph.Graph, org.apache.jena.riot.system.StreamRDF)
• StreamRDFOps.datasetToStream(org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.riot.system.StreamRDF)

getWriterStream

public static StreamRDF getWriterStream(OutputStream output,
 RDFFormat format)

Get a StreamRDF destination that will output in syntax RDFFormat and is guaranteed to do so in a scaling, streaming fashion.

Parameters:

output - OutputStream

format - The syntax (as an RDFFormat)

Returns:

StreamRDF, or null if format is not registered for streaming.

See Also:

• StreamRDFOps.graphToStream(org.apache.jena.graph.Graph, org.apache.jena.riot.system.StreamRDF)
• StreamRDFOps.datasetToStream(org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.riot.system.StreamRDF)

getWriterStream

public static StreamRDF getWriterStream(OutputStream output,
 RDFFormat format,
 Context context)

Get a StreamRDF destination that will output in syntax RDFFormat and is guaranteed to do so in a scaling, streaming fashion.

Parameters:

output - OutputStream

format - The syntax (as an RDFFormat)

context - Context

Returns:

StreamRDF, or null if format is not registered for streaming.

See Also:

• StreamRDFOps.graphToStream(org.apache.jena.graph.Graph, org.apache.jena.riot.system.StreamRDF)
• StreamRDFOps.datasetToStream(org.apache.jena.sparql.core.DatasetGraph, org.apache.jena.riot.system.StreamRDF)

registered

public static boolean registered(Lang lang)

registered

public static boolean registered(RDFFormat format)

registered

public static Collection<RDFFormat> registered()

write

public static void write(OutputStream output,
 org.apache.jena.graph.Graph graph,
 Lang lang,
 Context context)

Write a Graph in streaming fashion

Parameters:

output - OutputStream

graph - Graph to write

lang - Syntax

context - Context

write

public static void write(OutputStream output,
 org.apache.jena.graph.Graph graph,
 RDFFormat format)

Write a Graph in streaming fashion

Parameters:

output - OutputStream

graph - Graph to write

format - Syntax

write

public static void write(OutputStream output,
 org.apache.jena.graph.Graph graph,
 RDFFormat format,
 Context context)

Write a Graph in streaming fashion

Parameters:

output - OutputStream

graph - Graph to write

format - Syntax

context - Context

write

public static void write(OutputStream output,
 DatasetGraph datasetGraph,
 Lang lang)

Write a DatasetGraph in streaming fashion

Parameters:

output - OutputStream

datasetGraph - DatasetGraph to write

lang - Syntax

write

public static void write(OutputStream output,
 DatasetGraph datasetGraph,
 Lang lang,
 Context context)

Write a DatasetGraph in streaming fashion

Parameters:

output - OutputStream

datasetGraph - DatasetGraph to write

lang - Syntax

context - Context

write

public static void write(OutputStream output,
 DatasetGraph datasetGraph,
 RDFFormat format,
 Context context)

Write a DatasetGraph in streaming fashion

Parameters:

output - OutputStream

datasetGraph - DatasetGraph to write

format - Syntax

context - Context