org.eclipse.rdf4j.sail.inferencer.fc

Class SchemaCachingRDFSInferencerConnection

java.lang.Object

org.eclipse.rdf4j.sail.helpers.SailConnectionWrapper

org.eclipse.rdf4j.sail.helpers.NotifyingSailConnectionWrapper

org.eclipse.rdf4j.sail.inferencer.InferencerConnectionWrapper

org.eclipse.rdf4j.sail.inferencer.fc.SchemaCachingRDFSInferencerConnection

All Implemented Interfaces:

AutoCloseable, FederatedServiceResolverClient, InferencerConnection, NotifyingSailConnection, SailConnection, SailConnectionListener

public class SchemaCachingRDFSInferencerConnection
extends InferencerConnectionWrapper
implements SailConnectionListener

Author:

Håvard Mikkelsen Ottestad

Method Summary

Modifier and Type	Method and Description
boolean	addInferredStatement(Resource subj, IRI pred, Value obj, Resource... contexts) Adds an inferred statement to a specific context.
void	addStatement(Resource subject, IRI predicate, Value object, Resource... contexts) Adds a statement to the store.
void	addStatement(UpdateContext modify, Resource subj, IRI pred, Value obj, Resource... contexts) Adds a statement to the store.
void	begin() Begins a transaction requiring SailConnection.commit() or SailConnection.rollback() to be called to close the transaction.
void	begin(IsolationLevel level) Begins a transaction with the specified IsolationLevel level, requiring SailConnection.commit() or SailConnection.rollback() to be called to close the transaction.
void	clearInferred(Resource... contexts) Removes all inferred statements from the specified/all contexts.
void	commit() Calls InferencerConnectionWrapper.flushUpdates() before forwarding the call to the wrapped connection.
void	flushUpdates() Flushes any pending updates to be processed and the resulting changes to be reported to registered SailConnectionListeners.
void	rollback() Rolls back the transaction, discarding any uncommitted changes that have been made in this SailConnection.
void	statementAdded(Statement st) Notifies the listener that a statement has been added in a transaction that it has registered itself with.
void	statementRemoved(Statement st) Notifies the listener that a statement has been removed in a transaction that it has registered itself with.

Methods inherited from class org.eclipse.rdf4j.sail.inferencer.InferencerConnectionWrapper

evaluate, flush, getContextIDs, getStatements, getWrappedConnection, prepare, removeInferredStatement, size

Methods inherited from class org.eclipse.rdf4j.sail.helpers.NotifyingSailConnectionWrapper

addConnectionListener, removeConnectionListener

Methods inherited from class org.eclipse.rdf4j.sail.helpers.SailConnectionWrapper

clear, clearNamespaces, close, endUpdate, explain, getNamespace, getNamespaces, isActive, isOpen, pendingRemovals, prepareQuery, removeNamespace, removeStatement, removeStatements, setFederatedServiceResolver, setNamespace, size, startUpdate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.sail.NotifyingSailConnection

addConnectionListener, removeConnectionListener

Methods inherited from interface org.eclipse.rdf4j.sail.SailConnection

addStatement, addStatement, clear, clearNamespaces, close, endUpdate, explain, getNamespace, getNamespaces, getStatements, hasStatement, isActive, isOpen, pendingRemovals, prepareQuery, removeNamespace, removeStatement, removeStatement, removeStatements, removeStatements, setNamespace, startUpdate

Method Detail

clearInferred

public void clearInferred(Resource... contexts)
                   throws SailException

Description copied from interface: InferencerConnection

Removes all inferred statements from the specified/all contexts. If no contexts are specified the method operates on the entire repository.

Specified by:

clearInferred in interface InferencerConnection

Overrides:

clearInferred in class InferencerConnectionWrapper

Parameters:

contexts - The context(s) from which to remove the statements. Note that this parameter is a vararg and as such is optional. If no contexts are supplied the method operates on the entire repository.

Throws:

SailException - If the statements could not be removed.

commit

public void commit()
            throws SailException

Description copied from class: InferencerConnectionWrapper

Calls InferencerConnectionWrapper.flushUpdates() before forwarding the call to the wrapped connection.

Specified by:

commit in interface SailConnection

Overrides:

commit in class InferencerConnectionWrapper

Throws:

UnknownSailTransactionStateException - If the transaction state can not be determined (this can happen for instance when communication between client and server fails or times-out). It does not indicate a problem with the integrity of the store.

SailException - If the SailConnection could not be committed.

addInferredStatement

public boolean addInferredStatement(Resource subj,
                                    IRI pred,
                                    Value obj,
                                    Resource... contexts)
                             throws SailException

Description copied from interface: InferencerConnection

Adds an inferred statement to a specific context.

Specified by:

addInferredStatement in interface InferencerConnection

Overrides:

addInferredStatement in class InferencerConnectionWrapper

Parameters:

subj - The subject of the statement to add.

pred - The predicate of the statement to add.

obj - The object of the statement to add.

contexts - The context(s) to add the statement to. Note that this parameter is a vararg and as such is optional. If no contexts are supplied the method operates on the entire repository.

Throws:

SailException - If the statement could not be added.

addStatement

public void addStatement(Resource subject,
                         IRI predicate,
                         Value object,
                         Resource... contexts)
                  throws SailException

Description copied from interface: SailConnection

Adds a statement to the store.

Specified by:

addStatement in interface SailConnection

Overrides:

addStatement in class SailConnectionWrapper

Parameters:

subject - The subject of the statement to add.

predicate - The predicate of the statement to add.

object - The object of the statement to add.

contexts - The context(s) to add the statement to. Note that this parameter is a vararg and as such is optional. If no contexts are specified, a context-less statement will be added.

Throws:

SailException - If the statement could not be added, for example because no transaction is active.

rollback

public void rollback()
              throws SailException

Description copied from interface: SailConnection

Rolls back the transaction, discarding any uncommitted changes that have been made in this SailConnection.

Specified by:

rollback in interface SailConnection

Overrides:

rollback in class SailConnectionWrapper

Throws:

UnknownSailTransactionStateException - If the transaction state can not be determined (this can happen for instance when communication between client and server fails or times-out). It does not indicate a problem with the integrity of the store.

SailException - If the SailConnection could not be rolled back.

begin

public void begin()
           throws SailException

Description copied from interface: SailConnection

Begins a transaction requiring SailConnection.commit() or SailConnection.rollback() to be called to close the transaction. The transaction will use the default IsolationLevel level for the SAIL, as returned by Sail.getDefaultIsolationLevel().

Specified by:

begin in interface SailConnection

Overrides:

begin in class SailConnectionWrapper

Throws:

SailException - If the connection could not start a transaction or if a transaction is already active on this connection.

begin

public void begin(IsolationLevel level)
           throws SailException

Description copied from interface: SailConnection

Begins a transaction with the specified IsolationLevel level, requiring SailConnection.commit() or SailConnection.rollback() to be called to close the transaction.

Specified by:

begin in interface SailConnection

Overrides:

begin in class SailConnectionWrapper

Parameters:

level - the transaction isolation level on which this transaction operates.

Throws:

UnknownSailTransactionStateException - If the IsolationLevel is not supported by this implementation

SailException - If the connection could not start a transaction, if the supplied transaction isolation level is not supported, or if a transaction is already active on this connection.

flushUpdates

public void flushUpdates()
                  throws SailException

Description copied from interface: InferencerConnection

Flushes any pending updates to be processed and the resulting changes to be reported to registered SailConnectionListeners.

Specified by:

flushUpdates in interface InferencerConnection

Overrides:

flushUpdates in class InferencerConnectionWrapper

Throws:

SailException - If the updates could not be processed.

statementAdded

public void statementAdded(Statement st)

Description copied from interface: SailConnectionListener

Notifies the listener that a statement has been added in a transaction that it has registered itself with.

Specified by:

statementAdded in interface SailConnectionListener

Parameters:

st - The statement that was added.

statementRemoved

public void statementRemoved(Statement st)

Description copied from interface: SailConnectionListener

Notifies the listener that a statement has been removed in a transaction that it has registered itself with.

Specified by:

statementRemoved in interface SailConnectionListener

Parameters:

st - The statement that was removed.

addStatement

public void addStatement(UpdateContext modify,
                         Resource subj,
                         IRI pred,
                         Value obj,
                         Resource... contexts)
                  throws SailException

Description copied from interface: SailConnection

Adds a statement to the store. Called when adding statements through a UpdateExpr operation.

Specified by:

addStatement in interface SailConnection

Overrides:

addStatement in class SailConnectionWrapper

Parameters:

modify - operation properties of the UpdateExpr operation producing these statements.

subj - The subject of the statement to add.

pred - The predicate of the statement to add.

obj - The object of the statement to add.

contexts - The context(s) to add the statement to. Note that this parameter is a vararg and as such is optional. If no contexts are specified, a context-less statement will be added.

Throws:

SailException - If the statement could not be added, for example because no transaction is active.