org.datanucleus.store.fieldmanager
Class CachePopulateFieldManager

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

All Implemented Interfaces:

FieldConsumer, FieldManager, FieldSupplier

public class CachePopulateFieldManager
extends AbstractFetchFieldManager

FieldManager to handle the population of the Level2 cache with objects. Recurses down the object graph to the fetchDepth limit adding objects to the L2 cache as it goes. Any field that has an SCO wrapper will be replaced by a non-SCO object.

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

CachePopulateFieldManager(StateManager sm, boolean[] secondClassMutableFields, FetchPlan.FetchPlanForClass fpClass, CacheState state, CachedPC cacheable)
Constructor.

Method Summary

protected java.lang.Object	endOfGraphOperation(int fieldNumber) Method to throw and EndOfFetchPlanGraphException since we're at the end of a branch in the tree.
protected java.lang.Object	internalFetchObjectField(int fieldNumber) Method to fetch an object field whether it is collection/map, PC, or whatever for the cache process.
protected java.lang.Object	processPersistable(AbstractMemberMetaData mmd, 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

CachePopulateFieldManager

public CachePopulateFieldManager(StateManager sm,
                                 boolean[] secondClassMutableFields,
                                 FetchPlan.FetchPlanForClass fpClass,
                                 CacheState state,
                                 CachedPC cacheable)

Constructor.

Parameters:

sm - the StateManager of the instance being cached.

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 caching process

Method Detail

processPersistable

protected java.lang.Object processPersistable(AbstractMemberMetaData mmd,
                                              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 collection/map, PC, or whatever for the cache 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 to throw and EndOfFetchPlanGraphException since we're at the end of a branch in the tree.

Specified by:

endOfGraphOperation in class AbstractFetchFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

Object to return