Package org.datanucleus.flush
Class MapClearOperation
java.lang.Object
org.datanucleus.flush.MapClearOperation
- All Implemented Interfaces:
Operation
,SCOOperation
Clear operation for a map where we have a backing store.
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Field Summary
FieldsModifier and TypeFieldDescription(package private) final int
(package private) final DNStateManager
(package private) final MapStore
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Constructor Summary
ConstructorsConstructorDescriptionMapClearOperation
(DNStateManager sm, int fieldNum) MapClearOperation
(DNStateManager sm, MapStore store) -
Method Summary
Modifier and TypeMethodDescriptionAccessor for the metadata for the member that this operation is for.Accessor for StateManager of the object that this operation is performed on.getStore()
Accessor for the backing store for this operation.void
perform()
Perform the clear() operation on the specified backing store.toString()
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Field Details
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sm
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fieldNumber
final int fieldNumber -
store
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Constructor Details
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MapClearOperation
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MapClearOperation
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Method Details
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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. -
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
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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toString
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