org.hibernate.context

Class ManagedSessionContext

java.lang.Object

org.hibernate.context.ManagedSessionContext

All Implemented Interfaces:

java.io.Serializable, CurrentSessionContext

public class ManagedSessionContext
extends java.lang.Object
implements CurrentSessionContext

Represents a CurrentSessionContext the notion of a contextual session is managed by some external entity (generally some form of interceptor, etc). This external manager is responsible for scoping these contextual sessions appropriately binding/unbinding them here for exposure to the application through SessionFactory.getCurrentSession() calls.

Basically exposes two interfaces.

• First is the implementation of CurrentSessionContext which is then used by the SessionFactory.getCurrentSession() calls. This portion is instance-based specific to the session factory owning the given instance of this impl (there will be one instance of this per each session factory using this strategy).
• Second is the externally facing methods hasBind(org.hibernate.SessionFactory), bind(org.hibernate.classic.Session), and unbind(org.hibernate.SessionFactory) used by the external thing to manage exposure of the current session it is scoping. This portion is static to allow easy reference from that external thing.

The underlying storage of the current sessions here is a static ThreadLocal-based map where the sessions are keyed by the the owning session factory.

Author:

Steve Ebersole

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ManagedSessionContext(SessionFactoryImplementor factory)

Method Summary

Methods

Modifier and Type	Method and Description
static Session	bind(Session session) Binds the given session to the current context for its session factory.
Session	currentSession() Retrieve the current session according to the scoping defined by this implementation.
static boolean	hasBind(SessionFactory factory) Check to see if there is already a session associated with the current thread for the given session factory.
protected static java.util.Map	sessionMap()
static Session	unbind(SessionFactory factory) Unbinds the session (if one) current associated with the context for the given session.

Methods inherited from class java.lang.Object

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

Constructor Detail

ManagedSessionContext

public ManagedSessionContext(SessionFactoryImplementor factory)

Method Detail

currentSession

public Session currentSession()

Retrieve the current session according to the scoping defined by this implementation.

Specified by:

currentSession in interface CurrentSessionContext

Returns:

The current session.

hasBind

public static boolean hasBind(SessionFactory factory)

Check to see if there is already a session associated with the current thread for the given session factory.

Parameters:

factory - The factory against which to check for a given session within the current thread.

Returns:

True if there is currently a session bound.

bind

public static Session bind(Session session)

Binds the given session to the current context for its session factory.

Parameters:

session - The session to be bound.

Returns:

Any previously bound session (should be null in most cases).

unbind

public static Session unbind(SessionFactory factory)

Unbinds the session (if one) current associated with the context for the given session.

Parameters:

factory - The factory for which to unbind the current session.

Returns:

The bound session if one, else null.

sessionMap

protected static java.util.Map sessionMap()