Class L2CacheRetrieveFieldManager

java.lang.Object

org.datanucleus.store.fieldmanager.AbstractFieldManager

org.datanucleus.cache.L2CacheRetrieveFieldManager

All Implemented Interfaces:

FieldManager

public class L2CacheRetrieveFieldManager
extends AbstractFieldManager

FieldManager responsible for retrieving the values from the provided CachedPC object.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) CachedPC	cachedPC	CachedPC that we are taking values from.
(package private) ExecutionContext	ec	Execution Context.
(package private) List<Integer>	fieldsNotLoaded
(package private) DNStateManager	sm	StateManager of the object we are copying values into.

Constructor Summary

Constructors

Constructor	Description
L2CacheRetrieveFieldManager(DNStateManager sm, CachedPC cachedpc)

Method Summary

Modifier and Type	Method	Description
private Object	convertCachedPCToPersistable(CachedPC cachedPC, int memberNumber, PersistableObjectType objectType)	Method to convert a nested (i.e embedded) CachedPC back to the persistable object it represents.
boolean	fetchBooleanField(int fieldNumber)	Fetch a boolean field at the specified field number, returning it.
byte	fetchByteField(int fieldNumber)	Fetch a byte field at the specified field number, returning it.
char	fetchCharField(int fieldNumber)	Fetch a char field at the specified field number, returning it.
double	fetchDoubleField(int fieldNumber)	Fetch a double field at the specified field number, returning it.
float	fetchFloatField(int fieldNumber)	Fetch a float field at the specified field number, returning it.
int	fetchIntField(int fieldNumber)	Fetch an int field at the specified field number, returning it.
long	fetchLongField(int fieldNumber)	Fetch a long field at the specified field number, returning it.
Object	fetchObjectField(int fieldNumber)	Fetch an object field at the specified field number, returning it.
short	fetchShortField(int fieldNumber)	Fetch a short field at the specified field number, returning it.
String	fetchStringField(int fieldNumber)	Fetch a string field at the specified field number, returning it.
int[]	getFieldsNotLoaded()
private Object	getObjectFromCachedId(Object cachedId)
(package private) static <T> T	newContainer(Object container, AbstractMemberMetaData mmd, ContainerHandler containerHandler)	Copy container without using the container handler and metadata type info.
private Object	processContainerField(AbstractMemberMetaData mmd, Object container)
private Object	processElementContainer(AbstractMemberMetaData mmd, Object cachedContainer, ContainerHandler<Object, ElementContainerAdapter<Object>> containerHandler)
private Object	processField(AbstractMemberMetaData mmd, Object value)
private Object	processMapContainer(AbstractMemberMetaData mmd, Object cachedMapContainer, ContainerHandler<Object, MapContainerAdapter<Object>> containerHandler)

Methods inherited from class AbstractFieldManager

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

Methods inherited from class Object

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

Field Details

sm

DNStateManager sm

StateManager of the object we are copying values into.

ec

ExecutionContext ec

Execution Context.

cachedPC

CachedPC cachedPC

CachedPC that we are taking values from.

fieldsNotLoaded

List<Integer> fieldsNotLoaded

Constructor Details

L2CacheRetrieveFieldManager

public L2CacheRetrieveFieldManager(DNStateManager sm,
 CachedPC cachedpc)

Method Details

getFieldsNotLoaded

public int[] getFieldsNotLoaded()

fetchBooleanField

public boolean fetchBooleanField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a boolean field at the specified field number, returning it.

Specified by:

fetchBooleanField in interface FieldManager

Overrides:

fetchBooleanField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchByteField

public byte fetchByteField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a byte field at the specified field number, returning it.

Specified by:

fetchByteField in interface FieldManager

Overrides:

fetchByteField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchCharField

public char fetchCharField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a char field at the specified field number, returning it.

Specified by:

fetchCharField in interface FieldManager

Overrides:

fetchCharField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchDoubleField

public double fetchDoubleField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a double field at the specified field number, returning it.

Specified by:

fetchDoubleField in interface FieldManager

Overrides:

fetchDoubleField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchFloatField

public float fetchFloatField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a float field at the specified field number, returning it.

Specified by:

fetchFloatField in interface FieldManager

Overrides:

fetchFloatField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchIntField

public int fetchIntField(int fieldNumber)

Description copied from interface: FieldManager

Fetch an int field at the specified field number, returning it.

Specified by:

fetchIntField in interface FieldManager

Overrides:

fetchIntField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchLongField

public long fetchLongField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a long field at the specified field number, returning it.

Specified by:

fetchLongField in interface FieldManager

Overrides:

fetchLongField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchShortField

public short fetchShortField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a short field at the specified field number, returning it.

Specified by:

fetchShortField in interface FieldManager

Overrides:

fetchShortField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchStringField

public String fetchStringField(int fieldNumber)

Description copied from interface: FieldManager

Fetch a string field at the specified field number, returning it.

Specified by:

fetchStringField in interface FieldManager

Overrides:

fetchStringField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

fetchObjectField

public Object fetchObjectField(int fieldNumber)

Description copied from interface: FieldManager

Fetch an object field at the specified field number, returning it.

Specified by:

fetchObjectField in interface FieldManager

Overrides:

fetchObjectField in class AbstractFieldManager

Parameters:

fieldNumber - Number of the field

Returns:

The value

processContainerField

private Object processContainerField(AbstractMemberMetaData mmd,
 Object container)

processMapContainer

private Object processMapContainer(AbstractMemberMetaData mmd,
 Object cachedMapContainer,
 ContainerHandler<Object, MapContainerAdapter<Object>> containerHandler)

processElementContainer

private Object processElementContainer(AbstractMemberMetaData mmd,
 Object cachedContainer,
 ContainerHandler<Object, ElementContainerAdapter<Object>> containerHandler)

processField

private Object processField(AbstractMemberMetaData mmd,
 Object value)

getObjectFromCachedId

private Object getObjectFromCachedId(Object cachedId)

newContainer

static <T> T newContainer(Object container,
 AbstractMemberMetaData mmd,
 ContainerHandler containerHandler)

Copy container without using the container handler and metadata type info. Calling newContainer from container handler for interfaces will return the default chosen implementation, but this causes the JDO TCK (TestCollectionCollections) to fail because it expects Collection fields to return the same or at most a List.

convertCachedPCToPersistable

private Object convertCachedPCToPersistable(CachedPC cachedPC,
 int memberNumber,
 PersistableObjectType objectType)

Method to convert a nested (i.e embedded) CachedPC back to the persistable object it represents.

Parameters:

cachedPC - The CachedPC

memberNumber - Member number in the owning object where this is stored

objectType - Type of object that is embedded/serialised

Returns:

The (persistable) object