org.datanucleus.store.fieldmanager
Class LoadFieldManager

java.lang.Object
  org.datanucleus.store.fieldmanager.AbstractFieldManager
      org.datanucleus.store.fieldmanager.AbstractFetchFieldManager
          org.datanucleus.store.fieldmanager.LoadFieldManager

All Implemented Interfaces:

FieldConsumer, FieldManager, FieldSupplier

public class LoadFieldManager
extends AbstractFetchFieldManager

Field Manager to handle loading all fields of all objects in the fetch plan. The method in StateManagerImpl only loads the fields for that object and so will only load the DFG fields for objects (hence omitting any non-DFG fields that are in the FetchPlan that have been omitted due to lazy-loading).

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.fieldmanager.AbstractFetchFieldManager

AbstractFetchFieldManager.EndOfFetchPlanGraphException

Field Summary

Fields inherited from class org.datanucleus.store.fieldmanager.AbstractFetchFieldManager

fpClass, secondClassMutableFields, sm, state

Constructor Summary

LoadFieldManager(StateManager sm, boolean[] secondClassMutableFields, FetchPlanForClass fpClass, FetchPlanState state)
Constructor for a field manager for make transient process.

Method Summary

protected java.lang.Object	endOfGraphOperation(int fieldNumber) Method called when were arrive at the end of a branch
protected java.lang.Object	internalFetchObjectField(int fieldNumber) Method to fetch an object field whether it is SCO collection, PC, or whatever for the fetchplan process.
protected void	processPersistable(java.lang.Object pc) Utility method to process the passed persistable object.

Methods inherited from class org.datanucleus.store.fieldmanager.AbstractFetchFieldManager

fetchBooleanField, fetchByteField, fetchCharField, fetchDoubleField, fetchFloatField, fetchIntField, fetchLongField, fetchObjectField, fetchShortField, fetchStringField

Methods inherited from class org.datanucleus.store.fieldmanager.AbstractFieldManager

storeBooleanField, storeByteField, storeCharField, storeDoubleField, storeFloatField, storeIntField, storeLongField, storeObjectField, storeShortField, storeStringField

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadFieldManager

public LoadFieldManager(StateManager sm,
                        boolean[] secondClassMutableFields,
                        FetchPlanForClass fpClass,
                        FetchPlanState state)

Constructor for a field manager for make transient process.

Parameters:

sm - the StateManager of the instance being loaded

secondClassMutableFields - The second class mutable fields for the class of this object

fpClass - Fetch Plan for the class of this instance

state - State object to hold any pertinent controls for the fetchplan process

Method Detail

processPersistable

protected void processPersistable(java.lang.Object pc)

Utility method to process the passed persistable object.

Parameters:

pc - The PC object

internalFetchObjectField

protected java.lang.Object internalFetchObjectField(int fieldNumber)

Method to fetch an object field whether it is SCO collection, PC, or whatever for the fetchplan process.

Specified by:

internalFetchObjectField in class AbstractFetchFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The object

endOfGraphOperation

protected java.lang.Object endOfGraphOperation(int fieldNumber)

Method called when were arrive at the end of a branch

Specified by:

endOfGraphOperation in class AbstractFetchFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

Object to return