Class StateManagerFactoryImpl

java.lang.Object
org.datanucleus.state.StateManagerFactoryImpl
All Implemented Interfaces:
StateManagerFactory

public class StateManagerFactoryImpl extends Object implements StateManagerFactory
Factory for StateManagers.
  • Field Details

    • smClass

      Class<? extends DNStateManager> smClass
      Class for the default StateManager type.
    • STATE_MANAGER_CTR_ARG_CLASSES

      public static final Class[] STATE_MANAGER_CTR_ARG_CLASSES
  • Constructor Details

  • Method Details

    • close

      public void close()
      Specified by:
      close in interface StateManagerFactory
    • newForHollow

      public <T> DNStateManager<T> newForHollow(ExecutionContext ec, Class<T> pcClass, Object id)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a hollow instance having the given object ID. This constructor is used for creating new instances of existing persistent objects.
      Specified by:
      newForHollow in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - the ExecutionContext
      pcClass - the class of the new instance to be created.
      id - the identity of the object.
      Returns:
      StateManager
    • newForHollow

      public <T> DNStateManager<T> newForHollow(ExecutionContext ec, Class<T> pcClass, Object id, FieldValues fv)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a recently populated hollow instance having the given object ID and the given field values. This constructor is used for creating new instances of persistent objects obtained e.g. via a Query or backed by a view.
      Specified by:
      newForHollow in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      pcClass - the class of the new instance to be created.
      id - the identity of the object.
      fv - the initial field values of the object.
      Returns:
      StateManager
    • newForHollowPreConstructed

      public <T> DNStateManager<T> newForHollowPreConstructed(ExecutionContext ec, Object id, T pc)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a hollow instance having the given object ID. The instance is already supplied.
      Specified by:
      newForHollowPreConstructed in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      id - the identity of the object.
      pc - The object that is hollow that we are going to manage
      Returns:
      StateManager
    • newForHollowPopulatedAppId

      @Deprecated public <T> DNStateManager<T> newForHollowPopulatedAppId(ExecutionContext ec, Class<T> pcClass, FieldValues fv)
      Deprecated.
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a hollow (or pclean) instance having the given FieldValues. This constructor is used for creating new instances of existing persistent objects using application identity.
      Specified by:
      newForHollowPopulatedAppId in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      pcClass - the class of the new instance to be created.
      fv - the initial field values of the object.
      Returns:
      StateManager
    • newForPersistentClean

      public <T> DNStateManager<T> newForPersistentClean(ExecutionContext ec, Object id, T pc)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage the specified persistent instance having the given object ID.
      Specified by:
      newForPersistentClean in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - the execution context controlling this state manager.
      id - the identity of the object.
      pc - The object that is persistent that we are going to manage
      Returns:
      StateManager
    • newForEmbedded

      public <T> DNStateManager<T> newForEmbedded(ExecutionContext ec, T pc, boolean copyPc, DNStateManager ownerSM, int ownerMemberNumber, PersistableObjectType objectType)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a persistable instance that will be EMBEDDED/SERIALISED into another persistable object. The instance will not be assigned an identity in the process since it is a SCO.
      Specified by:
      newForEmbedded in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      pc - The persistable to manage (see copyPc also)
      copyPc - Whether the SM should manage a copy of the passed PC or that one
      ownerSM - Owner StateManager
      ownerMemberNumber - Member number in owner object where this is stored
      objectType - Component within the member where this is stored
      Returns:
      StateManager
    • newForEmbedded

      public DNStateManager newForEmbedded(ExecutionContext ec, AbstractClassMetaData cmd, DNStateManager ownerSM, int ownerMemberNumber, PersistableObjectType objectType)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager for an object of the specified type, creating the PC object to hold the values where this object will be EMBEDDED/SERIALISED into another persistable object. The instance will not be assigned an identity in the process since it is a SCO.
      Specified by:
      newForEmbedded in interface StateManagerFactory
      Parameters:
      ec - ExecutionContext
      cmd - Meta-data for the class that this is an instance of.
      ownerSM - Owner StateManager
      ownerMemberNumber - Member number in owner object where this is stored
      objectType - Component within the member where this is stored
      Returns:
      StateManager
    • newForPersistentNew

      public <T> DNStateManager<T> newForPersistentNew(ExecutionContext ec, T pc, FieldValues preInsertChanges)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a transient instance that is becoming newly persistent. A new object ID for the instance is obtained from the store manager and the object is inserted in the data store. This constructor is used for assigning state managers to existing instances that are transitioning to a persistent state.
      Specified by:
      newForPersistentNew in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      pc - the instance being make persistent.
      preInsertChanges - Any changes to make before inserting
      Returns:
      StateManager
    • newForTransactionalTransient

      public <T> DNStateManager<T> newForTransactionalTransient(ExecutionContext ec, T pc)
      Description copied from interface: StateManagerFactory
      Constructs a StateManager to manage a transactional-transient instance. A new object ID for the instance is obtained from the store manager and the object is inserted in the data store. This constructor is used for assigning state managers to transient instances that are transitioning to a transient clean state.
      Specified by:
      newForTransactionalTransient in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      pc - the instance being make persistent.
      Returns:
      StateManager
    • newForDetached

      public <T> DNStateManager<T> newForDetached(ExecutionContext ec, T pc, Object id, Object version)
      Description copied from interface: StateManagerFactory
      Constructor for creating StateManager instances to manage persistable objects in detached state.
      Specified by:
      newForDetached in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      pc - the detached object
      id - the identity of the object.
      version - the detached version
      Returns:
      StateManager
    • newForPNewToBeDeleted

      public <T> DNStateManager<T> newForPNewToBeDeleted(ExecutionContext ec, T pc)
      Description copied from interface: StateManagerFactory
      Constructor for creating StateManager instances to manage persistable objects that are not persistent yet are about to be deleted. Consequently the initial lifecycle state will be P_NEW, but will soon move to P_NEW_DELETED.
      Specified by:
      newForPNewToBeDeleted in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - Execution Context
      pc - the object being deleted from persistence
      Returns:
      StateManager
    • newForCachedPC

      public <T> DNStateManager<T> newForCachedPC(ExecutionContext ec, Object id, CachedPC cachedPC)
      Description copied from interface: StateManagerFactory
      Constructor to create a StateManager for an object taken from the L2 cache with the specified id. Makes a copy of the cached object, assigns a StateManager to it, and copies across the fields that were loaded when cached.
      Specified by:
      newForCachedPC in interface StateManagerFactory
      Type Parameters:
      T - Type of the persistable class
      Parameters:
      ec - ExecutionContext
      id - Id to assign to the persistable object
      cachedPC - CachedPC object from the L2 cache
      Returns:
      StateManager
    • disconnectStateManager

      public void disconnectStateManager(DNStateManager sm)
      Description copied from interface: StateManagerFactory
      Method to be called when an StateManager is disconnected (finished with). This facilitates its reuse within a pool.
      Specified by:
      disconnectStateManager in interface StateManagerFactory
      Parameters:
      sm - StateManager
    • getStateManager

      protected DNStateManager getStateManager(ExecutionContext ec, AbstractClassMetaData cmd)
    • getInitialisedClassForClass

      private Class getInitialisedClassForClass(Class pcCls, ClassLoaderResolver clr)