Package org.datanucleus.state

Provides classes relating to the life cycle state of a persistable object.

See: Description

Interface Summary

Interface	Description
CallbackHandler	CallBack handlers receive notification of events on persistent objects.
LockManager	Interface defining a manager for locking of objects.
ObjectProvider<T>	Provider of field information for a managed object.
ObjectProviderFactory	Factory for ObjectProviders.
RelationshipManager
StateManager	This interface is the point of contact between managed instances of Persistable classes and DataNucleus.

Class Summary

Class	Description
AbstractStateManager<T>	Abstract representation of an implementation of a bytecode enhancement-based StateManager.
ActivityState	Definition of the activity states of a StateManager.
AppIdObjectIdFieldConsumer	Simple class to handle the copying of PK fields from an object id to an object.
DetachState	Holder for the detachment state control for the detachment process.
FetchPlanState	Holder for the state control for FetchPlan processing.
LifeCycleState	Base Class representing the life cycle state.
LockManagerImpl	Implementation of a lock manager for objects.
NullCallbackHandler	Callback handler that does nothing.
ObjectProviderFactoryImpl	Factory for ObjectProviders.
ObjectProviderPool	Pool of ObjectProvider objects.
ReferentialStateManagerImpl	Implementation of a StateManager for use where insertion ordering is important (such as RDBMS).
RelationshipManagerImpl	Manager for relationships of a class.
StateManagerImpl	Implementation of a StateManager, supporting the bytecode enhancement contract of DataNucleus.

Exception Summary

Exception	Description
IllegalStateTransitionException	A IllegalStateTransitionException is thrown if a life-cycle state attempts a transition that is illegal.

Package org.datanucleus.state Description

Provides classes relating to the life cycle state of a persistable object. Refer to section 5.5 of the JDO 1.0 specification for a description of this type of StateManager.