MapClearOperation (DataNucleus Core 6.0.1-SNAPSHOT API)

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 Description

MapClearOperation(DNStateManager sm, int fieldNum)

MapClearOperation(DNStateManager sm, MapStore store)

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()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - MapClearOperation
```
public MapClearOperation(DNStateManager sm,
                         MapStore store)
```
  - MapClearOperation
```
public MapClearOperation(DNStateManager sm,
                         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
  - 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