Class RDFSailRemover

java.lang.Object

org.eclipse.rdf4j.rio.helpers.AbstractRDFHandler

org.eclipse.rdf4j.repository.sail.helpers.RDFSailRemover

All Implemented Interfaces:

RDFHandler

class RDFSailRemover
extends AbstractRDFHandler

An Sail-specific RDFHandler that removes RDF data from a repository. To be used in combination with SPARQL DELETE DATA only.

Field Summary

Fields

Modifier and Type	Field	Description
private final SailConnection	con	The connection to use for the remove operations.
private Resource[]	contexts	The contexts to remove the statements from.
private final UpdateContext	uc
private final ValueFactory	vf

Constructor Summary

Constructors

Constructor	Description
RDFSailRemover(SailConnection con, ValueFactory vf, UpdateContext uc)	Creates a new RDFSailRemover object.

Method Summary

Modifier and Type	Method	Description
void	enforceContext(Resource... contexts)	Enforces the supplied contexts upon all statements that are reported to this RDFSailRemover.
boolean	enforcesContext()	Checks whether this RDFRemover enforces its contexts upon all statements that are reported to it.
Resource[]	getContexts()	Gets the contexts that this RDFRemover enforces upon all statements that are reported to it (in case enforcesContext() returns true).
void	handleStatement(Statement st)	Handles a statement.

Methods inherited from class AbstractRDFHandler

endRDF, handleComment, handleNamespace, startRDF

Methods inherited from class Object

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

Field Details

con

private final SailConnection con

The connection to use for the remove operations.

vf

private final ValueFactory vf

uc

private final UpdateContext uc

contexts

private Resource[] contexts

The contexts to remove the statements from. If this variable is a non-empty array, statements will be removed from the corresponding contexts.

Constructor Details

RDFSailRemover

public RDFSailRemover(SailConnection con,
 ValueFactory vf,
 UpdateContext uc)

Creates a new RDFSailRemover object.

Parameters:

con - The connection to use for the remove operations.

Method Details

enforceContext

public void enforceContext(Resource... contexts)

Enforces the supplied contexts upon all statements that are reported to this RDFSailRemover.

Parameters:

contexts - the contexts to use. Use an empty array (not null!) to indicate no context(s) should be enforced.

enforcesContext

public boolean enforcesContext()

Checks whether this RDFRemover enforces its contexts upon all statements that are reported to it.

Returns:

true if it enforces its contexts, false otherwise.

getContexts

public Resource[] getContexts()

Gets the contexts that this RDFRemover enforces upon all statements that are reported to it (in case enforcesContext() returns true).

Returns:

A Resource[] identifying the contexts, or null if no contexts is enforced.

handleStatement

public void handleStatement(Statement st)
                     throws RDFHandlerException

Description copied from interface: RDFHandler

Handles a statement.

Specified by:

handleStatement in interface RDFHandler

Overrides:

handleStatement in class AbstractRDFHandler

Parameters:

st - The statement.

Throws:

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