UpdateMemberOperation

java.lang.Object
- org.datanucleus.flush.UpdateMemberOperation

All Implemented Interfaces:

Operation
```
public class UpdateMemberOperation
extends java.lang.Object
implements Operation
```
Flush operation for an update of the value of a member of the specified object.

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) int`	`fieldNumber`
`(package private) java.lang.Object`	`newValue`
`(package private) java.lang.Object`	`oldValue`
`(package private) DNStateManager`	`sm`

Constructor Summary

Constructors
Constructor	Description
`UpdateMemberOperation(DNStateManager sm, int fieldNum, java.lang.Object newVal, java.lang.Object oldVal)`

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.
`java.lang.Object`	`getNewValue()`
`java.lang.Object`	`getOldValue()`
`DNStateManager`	`getStateManager()`	Accessor for StateManager of the object that this operation is performed on.
`void`	`perform()`	Method to perform the operation.
`java.lang.String`	`toString()`

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

- Field Detail
  - sm
```
final DNStateManager sm
```
  - fieldNumber
```
final int fieldNumber
```
  - oldValue
```
java.lang.Object oldValue
```
  - newValue
```
java.lang.Object newValue
```
- Constructor Detail
  - UpdateMemberOperation
```
public UpdateMemberOperation(DNStateManager sm,
                             int fieldNum,
                             java.lang.Object newVal,
                             java.lang.Object oldVal)
```
- Method Detail
  - getNewValue
```
public java.lang.Object getNewValue()
```
  - getOldValue
```
public java.lang.Object getOldValue()
```
  - getMemberMetaData
```
public AbstractMemberMetaData getMemberMetaData()
```
    Accessor for the metadata for the member that this operation is for.
    
    Returns:
    
    The member metadata
  - 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
  - perform
```
public void perform()
```
    Description copied from interface: Operation
    
    Method to perform the operation.
    
    Specified by:
    
    perform in interface Operation
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object