Package org.eclipse.rdf4j.benchmark.rio.util

Class BlackHoleRDFHandler

java.lang.Object

org.eclipse.rdf4j.benchmark.rio.util.BlackHoleRDFHandler

All Implemented Interfaces:

RDFHandler

public class BlackHoleRDFHandler
extends Object
implements RDFHandler

Empty RDF Handler that provides a Statement consumer that can be used with JMH BlackHole to avoid JVM (JIT Compiler) optimizations

Author:

Tomas Kovachev t.kovachev1996@gmail.com

Constructor Summary

Constructors

Constructor	Description
BlackHoleRDFHandler()

Method Summary

Modifier and Type	Method	Description
void	endRDF()	Signals the end of the RDF data.
void	handleComment(String s)	Handles a comment.
void	handleNamespace(String s, String s1)	Handles a namespace declaration/definition.
void	handleStatement(Statement statement)	Handles a statement.
void	setBlackHoleConsumer(Consumer<Statement> blackHoleConsumer)
void	startRDF()	Signals the start of the RDF data.

Methods inherited from class java.lang.Object

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

Constructor Detail

BlackHoleRDFHandler

public BlackHoleRDFHandler()

Method Detail

startRDF

public void startRDF()
              throws RDFHandlerException

Description copied from interface: RDFHandler

Signals the start of the RDF data. This method is called before any data is reported.

Specified by:

startRDF in interface RDFHandler

Throws:

RDFHandlerException - If the RDF handler has encountered an unrecoverable error.

endRDF

public void endRDF()
            throws RDFHandlerException

Description copied from interface: RDFHandler

Signals the end of the RDF data. This method is called when all data has been reported.

Specified by:

endRDF in interface RDFHandler

Throws:

RDFHandlerException - If the RDF handler has encountered an unrecoverable error.

handleNamespace

public void handleNamespace(String s,
                            String s1)
                     throws RDFHandlerException

Description copied from interface: RDFHandler

Handles a namespace declaration/definition. A namespace declaration associates a (short) prefix string with the namespace's URI. The prefix for default namespaces, which do not have an associated prefix, are represented as empty strings.

Specified by:

handleNamespace in interface RDFHandler

Parameters:

s - The prefix for the namespace, or an empty string in case of a default namespace.

s1 - The URI that the prefix maps to.

Throws:

RDFHandlerException - If the RDF handler has encountered an unrecoverable error.

handleStatement

public void handleStatement(Statement statement)
                     throws RDFHandlerException

Description copied from interface: RDFHandler

Handles a statement.

Specified by:

handleStatement in interface RDFHandler

Parameters:

statement - The statement.

Throws:

RDFHandlerException - If the RDF handler has encountered an unrecoverable error.

handleComment

public void handleComment(String s)
                   throws RDFHandlerException

Description copied from interface: RDFHandler

Handles a comment.

Specified by:

handleComment in interface RDFHandler

Parameters:

s - The comment.

Throws:

RDFHandlerException - If the RDF handler has encountered an unrecoverable error.

setBlackHoleConsumer

public void setBlackHoleConsumer(Consumer<Statement> blackHoleConsumer)