Package org.datanucleus.flush
Class MapClearOperation
- java.lang.Object
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- org.datanucleus.flush.MapClearOperation
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- All Implemented Interfaces:
Operation
,SCOOperation
public class MapClearOperation extends Object implements SCOOperation
Clear operation for a map where we have a backing store.
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Constructor Summary
Constructors Constructor Description MapClearOperation(DNStateManager sm, int fieldNum)
MapClearOperation(DNStateManager sm, MapStore store)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description 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.void
perform()
Perform the clear() operation on the specified backing store.String
toString()
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Constructor Detail
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MapClearOperation
public MapClearOperation(DNStateManager sm, MapStore store)
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MapClearOperation
public MapClearOperation(DNStateManager sm, int fieldNum)
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Method Detail
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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 interfaceSCOOperation
- Returns:
- The member metadata
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perform
public void perform()
Perform the clear() operation on the specified backing store.
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getStore
public Store getStore()
Description copied from interface:SCOOperation
Accessor for the backing store for this operation.- Specified by:
getStore
in interfaceSCOOperation
- Returns:
- The backing store
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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 interfaceOperation
- Returns:
- StateManager
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