org.janusgraph.diskstorage.inmemory

Class InMemoryStoreManager

java.lang.Object

org.janusgraph.diskstorage.inmemory.InMemoryStoreManager

All Implemented Interfaces:

KeyColumnValueStoreManager, StoreManager

public class InMemoryStoreManager
extends Object
implements KeyColumnValueStoreManager

In-memory backend storage engine.

Constructor Summary

Constructors

Constructor and Description
InMemoryStoreManager()
InMemoryStoreManager(Configuration configuration)

Method Summary

Modifier and Type	Method and Description
StoreTransaction	beginTransaction(BaseTransactionConfig config)
void	clearStorage()
void	close()
boolean	exists()
StoreFeatures	getFeatures()
List<KeyRange>	getLocalKeyPartition()
String	getName()
void	makeSnapshot(File targetSnapshotDirectory, ForkJoinPool parallelOperationsExecutor)
void	mutateMany(Map<String,Map<StaticBuffer,KCVMutation>> mutations, StoreTransaction txh)
KeyColumnValueStore	openDatabase(String name, StoreMetaData.Container metaData)
void	restoreFromSnapshot(File sourceSnapshotDirectory, boolean rollbackIfFailed, ForkJoinPool parallelOperationsExecutor)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.janusgraph.diskstorage.keycolumnvalue.KeyColumnValueStoreManager

openDatabase

Methods inherited from interface org.janusgraph.diskstorage.keycolumnvalue.StoreManager

getHadoopManager

Constructor Detail

InMemoryStoreManager

public InMemoryStoreManager()

InMemoryStoreManager

public InMemoryStoreManager(Configuration configuration)

Method Detail

beginTransaction

public StoreTransaction beginTransaction(BaseTransactionConfig config)
                                  throws BackendException

Specified by:

beginTransaction in interface StoreManager

Throws:

BackendException

close

public void close()
           throws BackendException

Specified by:

close in interface StoreManager

Throws:

BackendException

clearStorage

public void clearStorage()
                  throws BackendException

Specified by:

clearStorage in interface StoreManager

Throws:

BackendException

exists

public boolean exists()
               throws BackendException

Specified by:

exists in interface StoreManager

Throws:

BackendException

getFeatures

public StoreFeatures getFeatures()

Specified by:

getFeatures in interface StoreManager

openDatabase

public KeyColumnValueStore openDatabase(String name,
                                        StoreMetaData.Container metaData)
                                 throws BackendException

Specified by:

openDatabase in interface KeyColumnValueStoreManager

Throws:

BackendException

mutateMany

public void mutateMany(Map<String,Map<StaticBuffer,KCVMutation>> mutations,
                       StoreTransaction txh)
                throws BackendException

Specified by:

mutateMany in interface KeyColumnValueStoreManager

Throws:

BackendException

getLocalKeyPartition

public List<KeyRange> getLocalKeyPartition()
                                    throws BackendException

Specified by:

getLocalKeyPartition in interface StoreManager

Throws:

BackendException

getName

public String getName()

Specified by:

getName in interface StoreManager

makeSnapshot

public void makeSnapshot(File targetSnapshotDirectory,
                         ForkJoinPool parallelOperationsExecutor)
                  throws IOException

Throws:

IOException

restoreFromSnapshot

public void restoreFromSnapshot(File sourceSnapshotDirectory,
                                boolean rollbackIfFailed,
                                ForkJoinPool parallelOperationsExecutor)
                         throws IOException,
                                BackendException

Throws:

IOException

BackendException