org.hibernate.context
Class ManagedSessionContext
java.lang.Object
org.hibernate.context.ManagedSessionContext
- CurrentSessionContext, Serializable
public class ManagedSessionContext
extends java.lang.Object
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(SessionFactory)
, bind(Session)
,
and unbind(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.
bind
public static Session bind(Session session)
Binds the given session to the current context for its session factory.
session
- The session to be bound.
- Any previously bound session (should be null in most cases).
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.
factory
- The factory against which to check for a given session
within the current thread.
- True if there is currently a session bound.
sessionMap
protected static Map sessionMap()
unbind
public static Session unbind(SessionFactory factory)
Unbinds the session (if one) current associated with the context for the
given session.
factory
- The factory for which to unbind the current session.
- The bound session if one, else null.