Package com.stardog.stark.query.io.binary

Class BinarySelectQueryResultWriter

java.lang.Object

com.stardog.stark.query.io.binary.BinarySelectQueryResultWriter

All Implemented Interfaces:

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

public final class BinarySelectQueryResultWriter
extends Object
implements SelectQueryResultWriter, BinaryQueryResultConstants

Writer for SelectQueryResult in a binary format

Since:

1.0

Version:

1.0

Author:

Michael Grove

See Also:

• QueryResultFormats.BINARY

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	BinarySelectQueryResultWriter.BinarySelectQueryResultWriterFactory	Factory for BinarySelectQueryResultWriter

Field Summary

Fields inherited from interface com.stardog.stark.query.io.binary.BinaryQueryResultConstants

BNODE_RECORD_MARKER, DATATYPE_LITERAL_RECORD_MARKER, DEFAULT_GRAPH_RECORD_MARKER, EMPTY_ROW_RECORD_MARKER, ERROR_RECORD_MARKER, FORMAT_VERSION, LANG_LITERAL_RECORD_MARKER, MAGIC_NUMBER, MALFORMED_QUERY_ERROR, NAMED_GRAPH_RECORD_MARKER, NAMESPACE_RECORD_MARKER, NULL_RECORD_MARKER, PLAIN_LITERAL_RECORD_MARKER, QNAME_RECORD_MARKER, QUERY_EVALUATION_ERROR, REPEAT_RECORD_MARKER, STATEMENT_RECORD_MARKER, TABLE_END_RECORD_MARKER, URI_RECORD_MARKER

Constructor Summary

Constructors

Constructor	Description
BinarySelectQueryResultWriter(OutputStream theWriter, Options theOptions)

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

BinarySelectQueryResultWriter

public BinarySelectQueryResultWriter(OutputStream theWriter,
 Options theOptions)

Method Details

start

public void start()
           throws ResultWritingFailed

Indicates that writing has begun.

Specified by:

start in interface QueryResultHandler<BindingSet>

Specified by:

start in interface QueryResultWriter<BindingSet>

Throws:

ResultWritingFailed - if writing failed.

namespace

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

Specified by:

namespace in interface QueryResultWriter<BindingSet>

Throws:

ResultWritingFailed

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()

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

end

public void end()
         throws ResultWritingFailed

Signal that query processing has completed

Specified by:

end in interface QueryResultHandler<BindingSet>

Specified by:

end in interface QueryResultWriter<BindingSet>

Throws:

ResultWritingFailed

links

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

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

Throws:

ResultWritingFailed

See Also:

• "link"

format

@Nonnull
public QueryResultFormat format()

The format this writer will serialize output in

Specified by:

format in interface QueryResultWriter<BindingSet>

Returns:

the format