org.datamanager.kernel
Class MemoryManager

java.lang.Object
  |
  +--org.datamanager.kernel.MemoryManager

public class MemoryManager

extends Object

Field Summary

protected KernelMemory

kernelMemory

Constructor Summary

MemoryManager()

Method Summary

protected Entity	findEntity(org.datamanager.kernel.Identifier identifier) Finds the Entity associated with the given Identifier.
protected org.datamanager.kernel.Identifier	findFromStorage(Entity entity)
protected Entity	findFromStorage(org.datamanager.kernel.Identifier identifier)
protected org.datamanager.kernel.Identifier	findIdentifier(Entity entity) Finds the Identifier for the given Entity.
protected org.datamanager.kernel.EntityProxy	findProxy(org.datamanager.kernel.Identifier identifier) Finds the EntityProxy for the given Identifier.
protected void	loadEntityToMemory(org.datamanager.kernel.Identifier identifier, org.datamanager.kernel.VerySimpleEntity entity, org.datamanager.kernel.EntityProxy entityProxy) Loads the given triple into the KernelMemory.
protected void	persistEntity(org.datamanager.kernel.Identifier identifier, Entity entity)
protected void	readPersistedEntity()
protected void	removeEntityFromMemory() Removes the oldest entity from the KernelMemory.

Methods inherited from class java.lang.Object

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

Field Detail

kernelMemory

protected KernelMemory kernelMemory

Constructor Detail

MemoryManager

public MemoryManager()

Method Detail

findIdentifier

protected org.datamanager.kernel.Identifier findIdentifier(Entity entity)
                                                    throws NoSuchIdentifierException

Finds the Identifier for the given Entity.

Parameters:

entity - The Entity for which to find an Identifier.

Returns:

The Indentifier for the specified Entity.

NoSuchIdentifierException

findProxy

protected org.datamanager.kernel.EntityProxy findProxy(org.datamanager.kernel.Identifier identifier)
                                                throws NoSuchEntityException

Finds the EntityProxy for the given Identifier.

Parameters:

identifier - The Identitifer for which to find an EntityProxy.

Returns:

The EntityProxy associated with the given Identifier.

NoSuchEntityException

findEntity

protected Entity findEntity(org.datamanager.kernel.Identifier identifier)
                     throws NoSuchEntityException

Finds the Entity associated with the given Identifier.

Parameters:

identifier - The Identifier for which to find an Entity.

Returns:

The Entity associated with the Identifier.

NoSuchEntityException

loadEntityToMemory

protected void loadEntityToMemory(org.datamanager.kernel.Identifier identifier,
                                  org.datamanager.kernel.VerySimpleEntity entity,
                                  org.datamanager.kernel.EntityProxy entityProxy)
                           throws Exception

Loads the given triple into the KernelMemory.

Exception

removeEntityFromMemory

protected void removeEntityFromMemory()
                               throws DataManagerException

Removes the oldest entity from the KernelMemory.

DataManagerException

persistEntity

protected void persistEntity(org.datamanager.kernel.Identifier identifier,
                             Entity entity)
                      throws DataManagerException

DataManagerException

readPersistedEntity

protected void readPersistedEntity()

findFromStorage

protected Entity findFromStorage(org.datamanager.kernel.Identifier identifier)

findFromStorage

protected org.datamanager.kernel.Identifier findFromStorage(Entity entity)