com.datumbox.framework.storage.inmemory

Class InMemoryEngine

java.lang.Object

com.datumbox.framework.common.storage.abstracts.AbstractStorageEngine<SC>

com.datumbox.framework.common.storage.abstracts.AbstractFileStorageEngine<InMemoryConfiguration>

com.datumbox.framework.storage.inmemory.InMemoryEngine

All Implemented Interfaces:

StorageEngine, java.lang.AutoCloseable

public class InMemoryEngine
extends AbstractFileStorageEngine<InMemoryConfiguration>

The InMemoryEngine is responsible for saving and loading data in memory, creating BigMaps and storing data. The InMemoryEngine loads all the data in memory and stores all data in serialized files.

Nested Class Summary

Nested classes/interfaces inherited from interface com.datumbox.framework.common.storage.interfaces.StorageEngine

StorageEngine.MapType, StorageEngine.StorageHint

Method Summary

Modifier and Type	Method and Description
void	clear() Clears all the data stored in the storage while keeping the connection open.
void	close()
<T extends java.util.Map> void	dropBigMap(java.lang.String name, T map) Drops the Big Map.
boolean	existsObject(java.lang.String name) Checks if an object exists with the particular name.
<K,V> java.util.Map<K,V>	getBigMap(java.lang.String name, java.lang.Class<K> keyClass, java.lang.Class<V> valueClass, StorageEngine.MapType type, StorageEngine.StorageHint storageHint, boolean isConcurrent, boolean isTemporary) Creates or loads a Big Map collection.
<T extends java.io.Serializable> T	loadObject(java.lang.String name, java.lang.Class<T> klass) Loads a serializable object from the storage.
boolean	rename(java.lang.String newStorageName) Renames the storage.
<T extends java.io.Serializable> void	saveObject(java.lang.String name, T serializableObject) Stores a serializable object in the storage.

Methods inherited from class com.datumbox.framework.common.storage.abstracts.AbstractStorageEngine

getStorageName, isClosed

Methods inherited from class java.lang.Object

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

Method Detail

rename

public boolean rename(java.lang.String newStorageName)

Renames the storage. Returns true if the operation was completed and false if it was not necessary.

Returns:

existsObject

public boolean existsObject(java.lang.String name)

Checks if an object exists with the particular name.

Returns:

saveObject

public <T extends java.io.Serializable> void saveObject(java.lang.String name,
                                                        T serializableObject)

Stores a serializable object in the storage.

loadObject

public <T extends java.io.Serializable> T loadObject(java.lang.String name,
                                                     java.lang.Class<T> klass)
                                              throws java.util.NoSuchElementException

Loads a serializable object from the storage.

Returns:

Throws:

java.util.NoSuchElementException

close

public void close()

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class AbstractStorageEngine<InMemoryConfiguration>

clear

public void clear()

Clears all the data stored in the storage while keeping the connection open.

getBigMap

public <K,V> java.util.Map<K,V> getBigMap(java.lang.String name,
                                          java.lang.Class<K> keyClass,
                                          java.lang.Class<V> valueClass,
                                          StorageEngine.MapType type,
                                          StorageEngine.StorageHint storageHint,
                                          boolean isConcurrent,
                                          boolean isTemporary)

Creates or loads a Big Map collection.

Returns:

dropBigMap

public <T extends java.util.Map> void dropBigMap(java.lang.String name,
                                                 T map)

Drops the Big Map.