Class MapRemoveOperation<K,V>

java.lang.Object

org.datanucleus.flush.MapRemoveOperation<K,V>

All Implemented Interfaces:

Operation, SCOOperation

public class MapRemoveOperation<K,V>
extends Object
implements SCOOperation

Remove operation for a map where we have a backing store.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int	fieldNumber
(package private) final K	key	The key to remove.
(package private) final DNStateManager	sm
(package private) final MapStore<K,V>	store
(package private) final V	value	The value to remove.

Constructor Summary

Constructors

Constructor	Description
MapRemoveOperation(DNStateManager sm, int fieldNum, K key, V val)
MapRemoveOperation(DNStateManager sm, MapStore store, K key, V val)

Method Summary

Modifier and Type	Method	Description
Object	getKey()	Accessor for the key being removed.
AbstractMemberMetaData	getMemberMetaData()	Accessor for the metadata for the member that this operation is for.
DNStateManager	getStateManager()	Accessor for StateManager of the object that this operation is performed on.
Store	getStore()	Accessor for the backing store for this operation.
Object	getValue()	Accessor for the value being removed for this key (if known).
void	perform()	Perform the remove(Object) operation on the specified container.
String	toString()

Methods inherited from class Object

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

Field Details

sm

final DNStateManager sm

fieldNumber

final int fieldNumber

store

final MapStore<K,V> store

key

final K key

The key to remove.

value

final V value

The value to remove.

Constructor Details

MapRemoveOperation

public MapRemoveOperation(DNStateManager sm,
 MapStore store,
 K key,
 V val)

MapRemoveOperation

public MapRemoveOperation(DNStateManager sm,
 int fieldNum,
 K key,
 V val)

Method Details

getMemberMetaData

public AbstractMemberMetaData getMemberMetaData()

Description copied from interface: SCOOperation

Accessor for the metadata for the member that this operation is for.

Specified by:

getMemberMetaData in interface SCOOperation

Returns:

The member metadata

getKey

public Object getKey()

Accessor for the key being removed.

Returns:

Key being removed

getValue

public Object getValue()

Accessor for the value being removed for this key (if known).

Returns:

Value being removed if known

perform

public void perform()

Perform the remove(Object) operation on the specified container.

Specified by:

perform in interface Operation

getStore

public Store getStore()

Description copied from interface: SCOOperation

Accessor for the backing store for this operation.

Specified by:

getStore in interface SCOOperation

Returns:

The backing store

getStateManager

public DNStateManager getStateManager()

Description copied from interface: Operation

Accessor for StateManager of the object that this operation is performed on.

Specified by:

getStateManager in interface Operation

Returns:

StateManager

toString

public String toString()

Overrides:

toString in class Object