eu.fbk.rdfpro

Class AbstractRDFHandlerWrapper

java.lang.Object

eu.fbk.rdfpro.AbstractRDFHandler

eu.fbk.rdfpro.AbstractRDFHandlerWrapper

All Implemented Interfaces:

AutoCloseable, org.openrdf.rio.RDFHandler

public abstract class AbstractRDFHandlerWrapper
extends AbstractRDFHandler

Base implementation of an RDFHandler + AutoCloseable wrapper.

This class wraps a RDFHandler and delegates all the methods to that instance. If the wrapped RDFHandler is AutoCloseable, then also calls to AutoCloseable.close() are delegated, with errors logged but ignored. Differently from Sesame RDFHandlerWrapper, this class wraps a unique RDFHandler and thus does not need array traversal (and its overhead) to notify a pool of RDFHandlers.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.openrdf.rio.RDFHandler	handler The wrapped RDFHandler.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractRDFHandlerWrapper(org.openrdf.rio.RDFHandler handler) Creates a new instance wrapping the supplied RDFHandler.

Method Summary

Modifier and Type	Method and Description
void	close() Delegates to the wrapped RDFHandler, if it implements Closeable.
void	endRDF() Delegates to the wrapped RDFHandler.
void	handleComment(String comment) Delegates to the wrapped RDFHandler.
void	handleNamespace(String prefix, String uri) Delegates to the wrapped RDFHandler.
void	handleStatement(org.openrdf.model.Statement statement) Delegates to the wrapped RDFHandler.
void	startRDF() Delegates to the wrapped RDFHandler.

Methods inherited from class java.lang.Object

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

Field Detail

handler

protected final org.openrdf.rio.RDFHandler handler

The wrapped RDFHandler.

Constructor Detail

AbstractRDFHandlerWrapper

protected AbstractRDFHandlerWrapper(org.openrdf.rio.RDFHandler handler)

Creates a new instance wrapping the supplied RDFHandler.

Parameters:

handler - the RDFHandler to wrap, not null

Method Detail

startRDF

public void startRDF()
              throws org.openrdf.rio.RDFHandlerException

Delegates to the wrapped RDFHandler.

Specified by:

startRDF in interface org.openrdf.rio.RDFHandler

Overrides:

startRDF in class AbstractRDFHandler

Throws:

org.openrdf.rio.RDFHandlerException

handleComment

public void handleComment(String comment)
                   throws org.openrdf.rio.RDFHandlerException

Delegates to the wrapped RDFHandler.

Specified by:

handleComment in interface org.openrdf.rio.RDFHandler

Overrides:

handleComment in class AbstractRDFHandler

Throws:

org.openrdf.rio.RDFHandlerException

handleNamespace

public void handleNamespace(String prefix,
                            String uri)
                     throws org.openrdf.rio.RDFHandlerException

Delegates to the wrapped RDFHandler.

Specified by:

handleNamespace in interface org.openrdf.rio.RDFHandler

Overrides:

handleNamespace in class AbstractRDFHandler

Throws:

org.openrdf.rio.RDFHandlerException

handleStatement

public void handleStatement(org.openrdf.model.Statement statement)
                     throws org.openrdf.rio.RDFHandlerException

Delegates to the wrapped RDFHandler.

Specified by:

handleStatement in interface org.openrdf.rio.RDFHandler

Overrides:

handleStatement in class AbstractRDFHandler

Throws:

org.openrdf.rio.RDFHandlerException

endRDF

public void endRDF()
            throws org.openrdf.rio.RDFHandlerException

Delegates to the wrapped RDFHandler.

Specified by:

endRDF in interface org.openrdf.rio.RDFHandler

Overrides:

endRDF in class AbstractRDFHandler

Throws:

org.openrdf.rio.RDFHandlerException

close

public void close()

Delegates to the wrapped RDFHandler, if it implements Closeable.

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractRDFHandler