UpdateDataChange (Nebula NatTable 2.0.2-SNAPSHOT API)

java.lang.Object
- org.eclipse.nebula.widgets.nattable.datachange.UpdateDataChange

All Implemented Interfaces:

DataChange

Direct Known Subclasses:

PersistenceUpdateDataChange, TemporaryUpdateDataChange
```
public abstract class UpdateDataChange
extends Object
implements DataChange
```
DataChange implementation that tracks data updates. Contains an UpdateDataCommand that is created as result of a DataUpdateEvent and can be used to revert the data update.

Since:

1.6

Constructor Summary

Constructors
Constructor	Description
`UpdateDataChange(Object key, Object value, CellKeyHandler<?> keyHandler)`	Create an `UpdateDataChange` that is able to revert the performed data update.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Object`	`getKey()`
`protected UpdateDataCommand`	`getUpdateDataCommand(DataChangeLayer layer)`
`Object`	`getValue()`
`void`	`updateKey(Object key)`	Update the locally stored key.

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

Methods inherited from interface org.eclipse.nebula.widgets.nattable.datachange.DataChange
discard, save

- Constructor Detail
  - UpdateDataChange
```
public UpdateDataChange(Object key,
                        Object value,
                        CellKeyHandler<?> keyHandler)
```
    Create an UpdateDataChange that is able to revert the performed data update.
    
    Parameters:
    
    key - The key under which the cell can be found that should be updated.
    
    value - The value that should be set on save or discard.
    
    keyHandler - The CellKeyHandler used to get indexes out of the key.
- Method Detail
  - getKey
```
public Object getKey()
```
    Specified by:
    
    getKey in interface DataChange
    
    Returns:
    
    The key used to identify the change in the backing data.
  - updateKey
```
public void updateKey(Object key)
```
    Description copied from interface: DataChange
    
    Update the locally stored key. Used in case the key changed because of structural changes.
    
    Specified by:
    
    updateKey in interface DataChange
    
    Parameters:
    
    key - The updated key.
  - getValue
```
public Object getValue()
```
    Returns:
    
    The value that should be set on save or discard.
  - getUpdateDataCommand
```
protected UpdateDataCommand getUpdateDataCommand(DataChangeLayer layer)
```