org.jpox.state
Class DetachFieldManager

java.lang.Object
  org.jpox.store.fieldmanager.AbstractFieldManager
      org.jpox.state.AbstractFetchFieldManager
          org.jpox.state.DetachFieldManager

All Implemented Interfaces:

javax.jdo.spi.PersistenceCapable.ObjectIdFieldConsumer, javax.jdo.spi.PersistenceCapable.ObjectIdFieldManager, javax.jdo.spi.PersistenceCapable.ObjectIdFieldSupplier, FieldManager

public class DetachFieldManager
extends AbstractFetchFieldManager

Utility class to handle the detach of fields.

Version:

$Revision: 1.20 $

Nested Class Summary

Nested classes/interfaces inherited from class org.jpox.state.AbstractFetchFieldManager

AbstractFetchFieldManager.EndOfFetchPlanGraphException

Field Summary

Fields inherited from class org.jpox.state.AbstractFetchFieldManager

fpClass, secondClassMutableFields, sm, state

Constructor Summary

DetachFieldManager(StateManager sm, boolean[] secondClassMutableFields, FetchPlanImpl.FetchPlanForClass fpClass, FetchPlanState state)
Constructor for a field manager for detachment.

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 SCO collection, PC, or whatever for the detachment process.

Methods inherited from class org.jpox.state.AbstractFetchFieldManager

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

Methods inherited from class org.jpox.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

DetachFieldManager

public DetachFieldManager(StateManager sm,
                          boolean[] secondClassMutableFields,
                          FetchPlanImpl.FetchPlanForClass fpClass,
                          FetchPlanState state)

Constructor for a field manager for detachment.

Parameters:

sm - the StateManager of the instance being detached. An instance in Persistent or Transactional state

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 detachment process

Method Detail

internalFetchObjectField

protected java.lang.Object internalFetchObjectField(int fieldNumber)

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