Package com.stardog.stark.query.io.text.csv

Class SPARQLCSVResultWriter

java.lang.Object

com.stardog.stark.query.io.text.csv.SPARQLCSVResultWriter

All Implemented Interfaces:

QueryResultWriter<BindingSet>, SelectQueryResultWriter, QueryResultHandler<BindingSet>, SelectQueryResultHandler

public final class SPARQLCSVResultWriter
extends Object
implements SelectQueryResultWriter

Writer implements for SPARQL/CSV query result format

Since:

1.0

Version:

1.0

Author:

Michael Grove

See Also:

• SelectQueryResult
• QueryResultFormats.CSV

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	SPARQLCSVResultWriter.CSVRWFactory	Factory for creating SPARQLCSVResultWriter

Constructor Summary

Constructors

Constructor	Description
SPARQLCSVResultWriter(OutputStream theOutputStream)

Method Summary

Modifier and Type	Method	Description
void	end()	Signal that query processing has completed
QueryResultFormat	format()	The format this writer will serialize output in
void	handle(BindingSet theBindings)	Handle a result to a query
void	links(List<String> theLinks)	Handle the set of links from the result
void	namespace(String thePrefix, String theIRI)
void	start()	Indicates that writing has begun.
void	variables(List<String> theVars)	The variables in the projection of the query

Methods inherited from class java.lang.Object

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

Constructor Details

SPARQLCSVResultWriter

public SPARQLCSVResultWriter(@Nonnull
 OutputStream theOutputStream)

Method Details

format

@Nonnull
public QueryResultFormat format()

The format this writer will serialize output in

Specified by:

format in interface QueryResultWriter<BindingSet>

Returns:

the format

variables

public void variables(@Nonnull
 List<String> theVars)

The variables in the projection of the query

Specified by:

variables in interface SelectQueryResultHandler

Parameters:

theVars - the variables

See Also:

• SelectQueryResult.variables()

start

public void start()

Indicates that writing has begun.

Specified by:

start in interface QueryResultHandler<BindingSet>

Specified by:

start in interface QueryResultWriter<BindingSet>

links

public void links(@Nonnull
 List<String> theLinks)

Handle the set of links from the result

Specified by:

links in interface QueryResultHandler<BindingSet>

Specified by:

links in interface QueryResultWriter<BindingSet>

Parameters:

theLinks - The links

See Also:

• "link"

handle

public void handle(@Nonnull
 BindingSet theBindings)
            throws ResultWritingFailed

Handle a result to a query

Specified by:

handle in interface QueryResultHandler<BindingSet>

Specified by:

handle in interface QueryResultWriter<BindingSet>

Parameters:

theBindings - the result

Throws:

ResultWritingFailed

namespace

public void namespace(@Nonnull
 String thePrefix,
 @Nonnull
 String theIRI)
               throws ResultWritingFailed

Specified by:

namespace in interface QueryResultWriter<BindingSet>

Throws:

ResultWritingFailed

end

public void end()

Signal that query processing has completed

Specified by:

end in interface QueryResultHandler<BindingSet>

Specified by:

end in interface QueryResultWriter<BindingSet>