Package org.eclipse.rdf4j.sail.lmdb

Class LmdbStoreConnection

java.lang.Object

org.eclipse.rdf4j.sail.helpers.AbstractSailConnection

org.eclipse.rdf4j.sail.helpers.AbstractNotifyingSailConnection

org.eclipse.rdf4j.sail.base.SailSourceConnection

org.eclipse.rdf4j.sail.lmdb.LmdbStoreConnection

All Implemented Interfaces:

AutoCloseable, FederatedServiceResolverClient, InferencerConnection, NotifyingSailConnection, SailConnection

public class LmdbStoreConnection
extends SailSourceConnection

Connection to an LmdbStore.

Field Summary

Fields

Modifier and Type	Field	Description
protected final LmdbStore	lmdbStore

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	LmdbStoreConnection(LmdbStore sail)

Method Summary

Modifier and Type	Method	Description
boolean	addInferredStatement(Resource subj, IRI pred, Value obj, Resource... contexts)	Adds an inferred statement to a specific context.
protected void	addStatementInternal(Resource subj, IRI pred, Value obj, Resource... contexts)
void	clearInferred(Resource... contexts)	Removes all inferred statements from the specified/all contexts.
protected void	clearInternal(Resource... contexts)
protected void	commitInternal()
protected CloseableIteration<? extends BindingSet>	evaluateInternal(TupleExpr tupleExpr, Dataset dataset, BindingSet bindings, boolean includeInferred)
protected CloseableIteration<? extends Statement>	getStatementsInternal(Resource subj, IRI pred, Value obj, boolean includeInferred, Resource... contexts)
protected void	initValue(Value value)	Ensures that all components of the value are initialized from the underlying database.
boolean	removeInferredStatement(Resource subj, IRI pred, Value obj, Resource... contexts)	Removes an inferred statement from a specific context.
protected void	removeStatementsInternal(Resource subj, IRI pred, Value obj, Resource... contexts)
protected void	rollbackInternal()
protected void	startTransactionInternal()

Methods inherited from class org.eclipse.rdf4j.sail.base.SailSourceConnection

addStatement, clearNamespacesInternal, closeInternal, endUpdateInternal, explain, flushUpdates, getComparator, getContextIDsInternal, getEvaluationStrategy, getFederatedServiceResolver, getNamespaceInternal, getNamespacesInternal, getStatementsInternal, prepareInternal, removeNamespaceInternal, removeStatement, setFederatedServiceResolver, setNamespaceInternal, setTransactionSettings, sizeInternal, startUpdate

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

addConnectionListener, hasConnectionListeners, notifyStatementAdded, notifyStatementRemoved, removeConnectionListener

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

addStatement, autoStartTransaction, begin, begin, clear, clearNamespaces, close, commit, endUpdate, evaluate, flush, getContextIDs, getNamespace, getNamespaces, getOwner, getSailBase, getStatements, getStatements, getTransactionIsolation, hasStatement, hasStatementInternal, isActive, isActiveOperation, isOpen, iterationClosed, pendingAdds, prepare, registerIteration, removeNamespace, removeStatements, rollback, setNamespace, setStatementsAdded, setStatementsRemoved, size, transactionActive, verifyIsActive, verifyIsOpen, waitForOtherOperations

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, begin, begin, clear, clearNamespaces, close, commit, endUpdate, evaluate, flush, getContextIDs, getNamespace, getNamespaces, getStatements, getStatements, getSupportedOrders, hasStatement, isActive, isOpen, prepare, prepareQuery, removeNamespace, removeStatements, rollback, setNamespace, size

Field Details

lmdbStore

protected final LmdbStore lmdbStore

Constructor Details

LmdbStoreConnection

protected LmdbStoreConnection(LmdbStore sail)

Method Details

startTransactionInternal

protected void startTransactionInternal()
                                 throws SailException

Overrides:

startTransactionInternal in class SailSourceConnection

Throws:

SailException

commitInternal

protected void commitInternal()
                       throws SailException

Overrides:

commitInternal in class SailSourceConnection

Throws:

SailException

rollbackInternal

protected void rollbackInternal()
                         throws SailException

Overrides:

rollbackInternal in class SailSourceConnection

Throws:

SailException

addStatementInternal

protected void addStatementInternal(Resource subj,
 IRI pred,
 Value obj,
 Resource... contexts)
                             throws SailException

Specified by:

addStatementInternal in class AbstractSailConnection

Throws:

SailException

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 SailSourceConnection

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.

evaluateInternal

protected CloseableIteration<? extends BindingSet> evaluateInternal(TupleExpr tupleExpr,
 Dataset dataset,
 BindingSet bindings,
 boolean includeInferred)
                                                             throws SailException

Overrides:

evaluateInternal in class SailSourceConnection

Throws:

SailException

getStatementsInternal

protected CloseableIteration<? extends Statement> getStatementsInternal(Resource subj,
 IRI pred,
 Value obj,
 boolean includeInferred,
 Resource... contexts)
                                                                 throws SailException

Overrides:

getStatementsInternal in class SailSourceConnection

Throws:

SailException

initValue

protected void initValue(Value value)

Ensures that all components of the value are initialized from the underlying database.

Parameters:

value - The value that should be initialized

removeStatementsInternal

protected void removeStatementsInternal(Resource subj,
 IRI pred,
 Value obj,
 Resource... contexts)
                                 throws SailException

Specified by:

removeStatementsInternal in class AbstractSailConnection

Throws:

SailException

removeInferredStatement

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

Description copied from interface: InferencerConnection

Removes an inferred statement from a specific context.

Specified by:

removeInferredStatement in interface InferencerConnection

Overrides:

removeInferredStatement in class SailSourceConnection

Parameters:

subj - The subject of the statement that should be removed.

pred - The predicate of the statement that should be removed.

obj - The object of the statement that should be removed.

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 statement could not be removed.

clearInternal

protected void clearInternal(Resource... contexts)
                      throws SailException

Overrides:

clearInternal in class SailSourceConnection

Throws:

SailException

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 SailSourceConnection

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.