org.batoo.jpa.core.impl.manager

Class SessionImpl

java.lang.Object

org.batoo.jpa.core.impl.manager.SessionImpl

public class SessionImpl
extends Object

Since:

$version

Author:

hceylan

Constructor Summary

Constructors

Constructor and Description
SessionImpl(EntityManagerImpl entityManager, MetamodelImpl metamodel)

Method Summary

Methods

Modifier and Type	Method and Description
void	cascadeRemovals(ManagedInstance<?>[] instances) Cascades the removals.
void	checkTransient(Object instance) Checks if the instance is managed in this session
void	clear() Clears the session.
void	flush(Connection connection) Flushes the session persisting changes to the database.
<Y,X> ManagedInstance<Y>	get(ManagedId<X> id) Returns the managed instance instance in the session
<X> ManagedInstance<X>	get(X entity) Returns the managed instance instance in the session
EntityManagerImpl	getEntityManager() Returns the entity manager.
ManagedInstance<?>[]	handleAdditions() Handles the additions to the collections.
void	handleExternals() Handles the external entities that are updated
void	handleOrphans(ManagedInstance<?>[] instances) Removes entities that have been orphaned
void	lazyInstanceLoading(ManagedInstance<?> instance) Notifies the session that the lazy instance is loading
<X> void	put(ManagedInstance<X> instance) Puts the instance into the session.
<X> void	putExternal(ManagedInstance<X> instance) Puts the new instance into the session.
void	releaseLoadTracker() Releases the load tracker, so that the entities loaded are processed for associations and PostLoad listeners are invoked.
ManagedInstance<?>	remove(Object entity) Removes the instance from the session.
void	setChanged(ManagedInstance<?> instance) Marks the instance as changed.
void	setLoadTracker() Sets the load tracker so that the insertions into session is tracked.

Methods inherited from class java.lang.Object

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

Constructor Detail

SessionImpl

public SessionImpl(EntityManagerImpl entityManager,
           MetamodelImpl metamodel)

Parameters:

entityManager - the owner entity manager

metamodel - the metamodel

Since:

$version

Method Detail

cascadeRemovals

public void cascadeRemovals(ManagedInstance<?>[] instances)

Cascades the removals.

Parameters:

instances - array of changed instances

Since:

$version

checkTransient

public void checkTransient(Object instance)

Checks if the instance is managed in this session

Parameters:

instance - the instance to check

Since:

$version

clear

public void clear()

Clears the session.

Since:

$version

flush

public void flush(Connection connection)
           throws SQLException

Flushes the session persisting changes to the database.

Parameters:

connection - the connection to use

Throws:

SQLException - thrown in case of an SQL error

Since:

$version

get

public <Y,X> ManagedInstance<Y> get(ManagedId<X> id)

Returns the managed instance instance in the session

Type Parameters:

X - the type of the instance

Y - the actual type of the instance

Parameters:

id - the managed id

Returns:

the managed instance or null

Since:

$version

get

public <X> ManagedInstance<X> get(X entity)

Returns the managed instance instance in the session

Type Parameters:

X - the type of the instance

Parameters:

entity - the entity

Returns:

the managed instance or null

Since:

$version

getEntityManager

public EntityManagerImpl getEntityManager()

Returns the entity manager.

Returns:

the entity manager

Since:

$version

handleAdditions

public ManagedInstance<?>[] handleAdditions()

Handles the additions to the collections.

Returns:

the array of changed instances

Since:

$version

handleExternals

public void handleExternals()

Handles the external entities that are updated

Since:

$version

handleOrphans

public void handleOrphans(ManagedInstance<?>[] instances)

Removes entities that have been orphaned

Parameters:

instances - the array of changed instances

Since:

$version

lazyInstanceLoading

public void lazyInstanceLoading(ManagedInstance<?> instance)

Notifies the session that the lazy instance is loading

Parameters:

instance - the instance

Since:

$version

put

public <X> void put(ManagedInstance<X> instance)

Puts the instance into the session.

Type Parameters:

X - the type of the instance

Parameters:

instance - the instance to put into the session

Since:

$version

putExternal

public <X> void putExternal(ManagedInstance<X> instance)

Puts the new instance into the session.

Additionally stores object in a safe repository that it knows the changes are not traced by enhancement.

Type Parameters:

X - the type of the instance

Parameters:

instance - the instance to put into the session

Since:

$version

releaseLoadTracker

public void releaseLoadTracker()

Releases the load tracker, so that the entities loaded are processed for associations and PostLoad listeners are invoked.

Since:

$version

remove

public ManagedInstance<?> remove(Object entity)

Removes the instance from the session.

Parameters:

entity - the entity to remove

Returns:

returns the entity

Since:

$version

setChanged

public void setChanged(ManagedInstance<?> instance)

Marks the instance as changed.

Parameters:

instance - the instance

Since:

$version

setLoadTracker

public void setLoadTracker()

Sets the load tracker so that the insertions into session is tracked.

Since:

$version