org.datanucleus.flush

Class MapClearOperation

java.lang.Object

org.datanucleus.flush.MapClearOperation

All Implemented Interfaces:

Operation, SCOOperation

public class MapClearOperation
extends Object
implements SCOOperation

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

Constructor Summary

Constructors

Constructor and Description
MapClearOperation(ObjectProvider op, int fieldNum)
MapClearOperation(ObjectProvider op, MapStore store)

Method Summary

Modifier and Type	Method and Description
AbstractMemberMetaData	getMemberMetaData() Accessor for the metadata for the member that this operation is for.
ObjectProvider	getObjectProvider() Accessor for the ObjectProvider of the object that this operation is performed on.
Store	getStore() Accessor for the backing store for this operation.
void	perform() Perform the clear() operation on the specified backing store.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

MapClearOperation

public MapClearOperation(ObjectProvider op,
                         MapStore store)

MapClearOperation

public MapClearOperation(ObjectProvider op,
                         int fieldNum)

Method Detail

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

perform

public void perform()

Perform the clear() operation on the specified backing store.

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

getObjectProvider

public ObjectProvider getObjectProvider()

Description copied from interface: Operation

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

Specified by:

getObjectProvider in interface Operation

Returns:

The ObjectProvider

toString

public String toString()

Overrides:

toString in class Object