Package org.aksw.jena_sparql_api.rx.io.resultset

Class SPARQLResultExProcessorImpl

java.lang.Object

org.aksw.commons.util.lifecycle.LifeCycleBase

org.aksw.jena_sparql_api.rx.io.resultset.SinkStreamingBase<org.aksw.jenax.stmt.resultset.SPARQLResultEx>

org.aksw.jena_sparql_api.rx.io.resultset.SPARQLResultExProcessorImpl

All Implemented Interfaces:

AutoCloseable, org.aksw.commons.util.lifecycle.LifeCycle, SinkStreaming<org.aksw.jenax.stmt.resultset.SPARQLResultEx>, SPARQLResultExProcessor, SPARQLResultExVisitor<Void>, SPARQLResultVisitor<Void>, org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sink<org.aksw.jenax.stmt.resultset.SPARQLResultEx>

public class SPARQLResultExProcessorImpl
extends SinkStreamingBase<org.aksw.jenax.stmt.resultset.SPARQLResultEx>
implements SPARQLResultExProcessor

This class bundles streaming sinks for the different result types of the SPARQL query forms.

Author:

raven

Nested Class Summary

Nested classes/interfaces inherited from class org.aksw.commons.util.lifecycle.LifeCycleBase

org.aksw.commons.util.lifecycle.LifeCycleBase.State

Field Summary

Fields

Modifier and Type	Field	Description
protected SinkStreaming<org.apache.jena.sparql.engine.binding.Binding>	bindingSink
protected Closeable	closeAction
protected com.google.gson.Gson	gson
protected SinkStreaming<com.google.gson.JsonElement>	jsonSink
protected SinkStreaming<org.apache.jena.sparql.core.Quad>	quadSink	The sink for quad may output immediately or write to a dataset first Sinks may be preconfigured with prefixes an wrap StreamRDF

Fields inherited from class org.aksw.commons.util.lifecycle.LifeCycleBase

state

Constructor Summary

Constructors

Constructor	Description
SPARQLResultExProcessorImpl(SinkStreaming<org.apache.jena.sparql.core.Quad> quadSink, SinkStreaming<com.google.gson.JsonElement> jsonSink, SinkStreaming<org.apache.jena.sparql.engine.binding.Binding> bindingSink, Closeable closeAction)

Method Summary

Modifier and Type	Method	Description
void	close()
protected void	finishActual()
void	flush()
SinkStreaming<org.apache.jena.sparql.engine.binding.Binding>	getBindingSink()
org.apache.jena.atlas.lib.Sink<com.google.gson.JsonElement>	getJsonSink()
org.apache.jena.atlas.lib.Sink<org.apache.jena.sparql.core.Quad>	getQuadSink()
Void	onBooleanResult(Boolean value)
Void	onJsonItems(Iterator<org.apache.jena.atlas.json.JsonObject> it)
Void	onQuads(Iterator<org.apache.jena.sparql.core.Quad> it)
Void	onResultSet(org.apache.jena.query.ResultSet rs)
Void	onTriples(Iterator<org.apache.jena.graph.Triple> it)
protected void	sendActual(org.aksw.jenax.stmt.resultset.SPARQLResultEx item)
protected void	startActual()

Methods inherited from class org.aksw.jena_sparql_api.rx.io.resultset.SinkStreamingBase

send

Methods inherited from class org.aksw.commons.util.lifecycle.LifeCycleBase

expectStarted, finish, start

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.atlas.lib.Sink

send

Methods inherited from interface org.aksw.jena_sparql_api.rx.io.resultset.SinkStreaming

finish, start

Methods inherited from interface org.aksw.jena_sparql_api.rx.io.resultset.SPARQLResultExVisitor

forwardEx

Methods inherited from interface org.aksw.jena_sparql_api.rx.io.resultset.SPARQLResultVisitor

forward

Field Details

gson

protected com.google.gson.Gson gson

quadSink

protected SinkStreaming<org.apache.jena.sparql.core.Quad> quadSink

The sink for quad may output immediately or write to a dataset first Sinks may be preconfigured with prefixes an wrap StreamRDF

jsonSink

protected SinkStreaming<com.google.gson.JsonElement> jsonSink

bindingSink

protected SinkStreaming<org.apache.jena.sparql.engine.binding.Binding> bindingSink

closeAction

protected Closeable closeAction

Constructor Details

SPARQLResultExProcessorImpl

public SPARQLResultExProcessorImpl(SinkStreaming<org.apache.jena.sparql.core.Quad> quadSink,
 SinkStreaming<com.google.gson.JsonElement> jsonSink,
 SinkStreaming<org.apache.jena.sparql.engine.binding.Binding> bindingSink,
 Closeable closeAction)

Method Details

getQuadSink

public org.apache.jena.atlas.lib.Sink<org.apache.jena.sparql.core.Quad> getQuadSink()

getBindingSink

public SinkStreaming<org.apache.jena.sparql.engine.binding.Binding> getBindingSink()

getJsonSink

public org.apache.jena.atlas.lib.Sink<com.google.gson.JsonElement> getJsonSink()

onBooleanResult

public Void onBooleanResult(Boolean value)

Specified by:

onBooleanResult in interface SPARQLResultVisitor<Void>

onResultSet

public Void onResultSet(org.apache.jena.query.ResultSet rs)

Specified by:

onResultSet in interface SPARQLResultVisitor<Void>

onJsonItems

public Void onJsonItems(Iterator<org.apache.jena.atlas.json.JsonObject> it)

Specified by:

onJsonItems in interface SPARQLResultVisitor<Void>

onQuads

public Void onQuads(Iterator<org.apache.jena.sparql.core.Quad> it)

Specified by:

onQuads in interface SPARQLResultExVisitor<Void>

onTriples

public Void onTriples(Iterator<org.apache.jena.graph.Triple> it)

Specified by:

onTriples in interface SPARQLResultExVisitor<Void>

startActual

protected void startActual()

Overrides:

startActual in class SinkStreamingBase<org.aksw.jenax.stmt.resultset.SPARQLResultEx>

finishActual

protected void finishActual()

Overrides:

finishActual in class SinkStreamingBase<org.aksw.jenax.stmt.resultset.SPARQLResultEx>

sendActual

protected void sendActual(org.aksw.jenax.stmt.resultset.SPARQLResultEx item)

Specified by:

sendActual in class SinkStreamingBase<org.aksw.jenax.stmt.resultset.SPARQLResultEx>

flush

public void flush()

Specified by:

flush in interface org.apache.jena.atlas.lib.Sink<org.aksw.jenax.stmt.resultset.SPARQLResultEx>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface org.apache.jena.atlas.lib.Closeable