Package org.eclipse.rdf4j.sail.lmdb

Class LmdbStore

java.lang.Object

org.eclipse.rdf4j.sail.helpers.AbstractSail

org.eclipse.rdf4j.sail.helpers.AbstractNotifyingSail

org.eclipse.rdf4j.sail.lmdb.LmdbStore

All Implemented Interfaces:

FederatedServiceResolverClient, NotifyingSail, Sail

@Experimental
public class LmdbStore
extends org.eclipse.rdf4j.sail.helpers.AbstractNotifyingSail
implements FederatedServiceResolverClient

A SAIL implementation using LMDB for storing and querying its data.

Field Summary

Fields inherited from class org.eclipse.rdf4j.sail.helpers.AbstractSail

connectionTimeOut, DEFAULT_CONNECTION_TIMEOUT, DEFAULT_ITERATION_SYNC_THRESHOLD, initializationLock

Constructor Summary

Constructors

Constructor	Description
LmdbStore()	Creates a new LmdbStore with default settings.
LmdbStore(File dataDir)	Creates a new LmdbStore with default settings.
LmdbStore(File dataDir, LmdbStoreConfig config)
LmdbStore(LmdbStoreConfig config)	Creates a new LmdbStore.

Method Summary

Modifier and Type	Method	Description
Supplier<org.eclipse.rdf4j.collection.factory.api.CollectionFactory>	getCollectionFactory()
protected NotifyingSailConnection	getConnectionInternal()
EvaluationStrategyFactory	getEvaluationStrategyFactory()
FederatedServiceResolver	getFederatedServiceResolver()
protected org.eclipse.rdf4j.common.concurrent.locks.Lock	getTransactionLock(org.eclipse.rdf4j.common.transaction.IsolationLevel level)	This call will block when IsolationLevels.NONE is provided when there are active transactions with a higher isolation and block when a higher isolation is provided when there are active transactions with IsolationLevels.NONE isolation.
org.eclipse.rdf4j.model.ValueFactory	getValueFactory()
protected void	initializeInternal()	Initializes this LmdbStore.
boolean	isWritable()
void	setDataDir(File dataDir)
void	setEvaluationStrategyFactory(EvaluationStrategyFactory factory)	Sets the EvaluationStrategy to use.
void	setFederatedServiceResolver(FederatedServiceResolver resolver)	Overrides the FederatedServiceResolver used by this instance, but the given resolver is not shutDown when this instance is.
void	shutDown()
protected void	shutDownInternal()

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

addSailChangedListener, getConnection, notifySailChanged, removeSailChangedListener

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

addSupportedIsolationLevel, connectionClosed, debugEnabled, getDataDir, getDefaultIsolationLevel, getDefaultQueryEvaluationMode, getIterationCacheSyncThreshold, getSupportedIsolationLevels, init, isInitialized, isTrackResultSize, removeSupportedIsolationLevel, setConnectionTimeOut, setDefaultIsolationLevel, setDefaultQueryEvaluationMode, setIterationCacheSyncThreshold, setSupportedIsolationLevels, setSupportedIsolationLevels, setTrackResultSize, toString

Methods inherited from class java.lang.Object

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

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

getDataDir, getDefaultIsolationLevel, getSupportedIsolationLevels, init

Constructor Detail

LmdbStore

public LmdbStore()

Creates a new LmdbStore with default settings.

LmdbStore

public LmdbStore(LmdbStoreConfig config)

Creates a new LmdbStore.

LmdbStore

public LmdbStore(File dataDir)

Creates a new LmdbStore with default settings.

LmdbStore

public LmdbStore(File dataDir,
                 LmdbStoreConfig config)

Method Detail

setDataDir

public void setDataDir(File dataDir)

Specified by:

setDataDir in interface Sail

Overrides:

setDataDir in class org.eclipse.rdf4j.sail.helpers.AbstractSail

getEvaluationStrategyFactory

public EvaluationStrategyFactory getEvaluationStrategyFactory()

Returns:

Returns the EvaluationStrategy.

setEvaluationStrategyFactory

public void setEvaluationStrategyFactory(EvaluationStrategyFactory factory)

Sets the EvaluationStrategy to use.

getFederatedServiceResolver

public FederatedServiceResolver getFederatedServiceResolver()

Specified by:

getFederatedServiceResolver in interface FederatedServiceResolverClient

Returns:

Returns the SERVICE resolver.

setFederatedServiceResolver

public void setFederatedServiceResolver(FederatedServiceResolver resolver)

Overrides the FederatedServiceResolver used by this instance, but the given resolver is not shutDown when this instance is.

Specified by:

setFederatedServiceResolver in interface FederatedServiceResolverClient

Parameters:

resolver - The SERVICE resolver to set.

initializeInternal

protected void initializeInternal()
                           throws SailException

Initializes this LmdbStore.

Overrides:

initializeInternal in class org.eclipse.rdf4j.sail.helpers.AbstractSail

Throws:

SailException - If this LmdbStore could not be initialized using the parameters that have been set.

shutDownInternal

protected void shutDownInternal()
                         throws SailException

Specified by:

shutDownInternal in class org.eclipse.rdf4j.sail.helpers.AbstractSail

Throws:

SailException

shutDown

public void shutDown()
              throws SailException

Specified by:

shutDown in interface Sail

Overrides:

shutDown in class org.eclipse.rdf4j.sail.helpers.AbstractSail

Throws:

SailException

isWritable

public boolean isWritable()

Specified by:

isWritable in interface Sail

getConnectionInternal

protected NotifyingSailConnection getConnectionInternal()
                                                 throws SailException

Specified by:

getConnectionInternal in class org.eclipse.rdf4j.sail.helpers.AbstractNotifyingSail

Throws:

SailException

getValueFactory

public org.eclipse.rdf4j.model.ValueFactory getValueFactory()

Specified by:

getValueFactory in interface Sail

getTransactionLock

protected org.eclipse.rdf4j.common.concurrent.locks.Lock getTransactionLock(org.eclipse.rdf4j.common.transaction.IsolationLevel level)
                                                                     throws SailException

This call will block when IsolationLevels.NONE is provided when there are active transactions with a higher isolation and block when a higher isolation is provided when there are active transactions with IsolationLevels.NONE isolation. Store is either exclusively in IsolationLevels.NONE isolation with potentially zero or more transactions, or exclusively in higher isolation mode with potentially zero or more transactions.

Parameters:

level - indicating desired mode IsolationLevels.NONE or higher

Returns:

Lock used to prevent Store from switching isolation modes

Throws:

SailException

getCollectionFactory

public Supplier<org.eclipse.rdf4j.collection.factory.api.CollectionFactory> getCollectionFactory()

Specified by:

getCollectionFactory in interface Sail