Class ConsoleRDFWriter

java.lang.Object

org.eclipse.rdf4j.rio.helpers.AbstractRDFWriter

org.eclipse.rdf4j.console.util.ConsoleRDFWriter

All Implemented Interfaces:

Sink, RDFHandler, RDFWriter

public class ConsoleRDFWriter
extends AbstractRDFWriter

Write query results to console

Author:

Bart Hanssens

Field Summary

Fields inherited from class AbstractRDFWriter

namespaceTable, statementConsumer

Modifier and Type	Field	Description
protected Map<String,String>	namespaceTable	Mapping from namespace prefixes to namespace names.
protected Consumer<Statement>	statementConsumer

Constructor Summary

Constructors

Constructor	Description
ConsoleRDFWriter(ConsoleIO consoleIO, int consoleWidth)	Constructor

Method Summary

Modifier and Type	Method	Description
void	consumeStatement(Statement st)	Consume a statement.
void	endRDF()	Signals the end of the RDF data.
RDFFormat	getRDFFormat()	Gets the RDF format that this RDFWriter uses.
void	handleComment(String comment)	Handles a comment.
void	handleNamespace(String prefix, String uri)	Handles a namespace declaration/definition.

Methods inherited from class AbstractRDFWriter

checkWritingStarted, getFileFormat, getSupportedSettings, getWriterConfig, handleStatement, isWritingStarted, set, setWriterConfig, startRDF

Modifier and Type	Method	Description
protected void	checkWritingStarted()	Verify that writing has started.
FileFormat	getFileFormat()	Get the FileFormat this sink uses.
Collection<RioSetting<?>>	getSupportedSettings()
WriterConfig	getWriterConfig()	Retrieves the current writer configuration as a single object.
void	handleStatement(Statement st)	Handles a statement.
protected boolean	isWritingStarted()	See if writing has started
<T> RDFWriter	set(RioSetting<T> setting, T value)	Set a setting on the writer, and return this writer object to allow chaining.
RDFWriter	setWriterConfig(WriterConfig config)	Sets all supplied writer configuration options.
void	startRDF()	Signals the start of the RDF data.

Methods inherited from class Object

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

Methods inherited from interface Sink

acceptsFileFormat

Modifier and Type	Method	Description
default boolean	acceptsFileFormat(FileFormat format)	Check if this Sink accepts the supplied FileFormat.

Constructor Details

ConsoleRDFWriter

public ConsoleRDFWriter(ConsoleIO consoleIO,
 int consoleWidth)

Constructor

Parameters:

consoleIO -

consoleWidth - console width

Method Details

handleNamespace

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

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

Overrides:

handleNamespace in class AbstractRDFWriter

Parameters:

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

uri - The URI that the prefix maps to.

Throws:

QueryResultHandlerException

getRDFFormat

public RDFFormat getRDFFormat()

Description copied from interface: RDFWriter

Gets the RDF format that this RDFWriter uses.

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.

Throws:

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

consumeStatement

public void consumeStatement(Statement st)
                      throws RDFHandlerException

Description copied from class: AbstractRDFWriter

Consume a statement.

Extending classes must override this method instead of overriding AbstractRDFWriter.handleStatement(Statement) in order to benefit from automatic handling of RDF-star conversion or encoding.

Overrides:

consumeStatement in class AbstractRDFWriter

Parameters:

st - the statement to consume.

Throws:

RDFHandlerException

handleComment

public void handleComment(String comment)
                   throws RDFHandlerException

Description copied from interface: RDFHandler

Handles a comment.

Parameters:

comment - The comment.

Throws:

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