org.openrdf.server.metadata.helpers
Class BackgroundGraphResult

java.lang.Object
  org.openrdf.server.metadata.helpers.BackgroundGraphResult

All Implemented Interfaces:

CloseableIteration<Statement,QueryEvaluationException>, Iteration<Statement,QueryEvaluationException>, Closeable, Runnable, GraphQueryResult, QueryResult<Statement>, RDFHandler

public class BackgroundGraphResult
extends Object
implements GraphQueryResult, Runnable, RDFHandler, Closeable

Allows concurrent access to statements as they are being parsed.

Author:

James Leigh

Constructor Summary

BackgroundGraphResult(QueueCursor<Statement> queue, RDFParser parser, InputStream in, Charset charset, String baseURI)

BackgroundGraphResult(RDFParser parser, InputStream in, Charset charset, String baseURI)

Method Summary

void	close()
void	endRDF()
Map<String,String>	getNamespaces()
void	handleComment(String comment)
void	handleNamespace(String prefix, String uri)
void	handleStatement(Statement st)
boolean	hasNext()
Statement	next()
void	remove()
void	run()
void	startRDF()

Methods inherited from class java.lang.Object

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

Constructor Detail

BackgroundGraphResult

public BackgroundGraphResult(RDFParser parser,
                             InputStream in,
                             Charset charset,
                             String baseURI)

BackgroundGraphResult

public BackgroundGraphResult(QueueCursor<Statement> queue,
                             RDFParser parser,
                             InputStream in,
                             Charset charset,
                             String baseURI)

Method Detail

hasNext

public boolean hasNext()
                throws QueryEvaluationException

Specified by:

hasNext in interface Iteration<Statement,QueryEvaluationException>

Throws:

QueryEvaluationException

next

public Statement next()
               throws QueryEvaluationException

Specified by:

next in interface Iteration<Statement,QueryEvaluationException>

Throws:

QueryEvaluationException

remove

public void remove()
            throws QueryEvaluationException

Specified by:

remove in interface Iteration<Statement,QueryEvaluationException>

Throws:

QueryEvaluationException

close

public void close()

Specified by:

close in interface CloseableIteration<Statement,QueryEvaluationException>

Specified by:

close in interface Closeable

run

public void run()

Specified by:

run in interface Runnable

startRDF

public void startRDF()
              throws RDFHandlerException

Specified by:

startRDF in interface RDFHandler

Throws:

RDFHandlerException

getNamespaces

public Map<String,String> getNamespaces()

Specified by:

getNamespaces in interface GraphQueryResult

handleComment

public void handleComment(String comment)
                   throws RDFHandlerException

Specified by:

handleComment in interface RDFHandler

Throws:

RDFHandlerException

handleNamespace

public void handleNamespace(String prefix,
                            String uri)
                     throws RDFHandlerException

Specified by:

handleNamespace in interface RDFHandler

Throws:

RDFHandlerException

handleStatement

public void handleStatement(Statement st)
                     throws RDFHandlerException

Specified by:

handleStatement in interface RDFHandler

Throws:

RDFHandlerException

endRDF

public void endRDF()
            throws RDFHandlerException

Specified by:

endRDF in interface RDFHandler

Throws:

RDFHandlerException