Package org.eclipse.nebula.widgets.nattable.datachange

Class RowDeleteDataChangeHandler

java.lang.Object

org.eclipse.nebula.widgets.nattable.datachange.AbstractDataChangeHandler<RowDeleteDataChange>

org.eclipse.nebula.widgets.nattable.datachange.RowDeleteDataChangeHandler

All Implemented Interfaces:

DataChangeHandler, ILayerEventHandler<RowObjectDeleteEvent>

public class RowDeleteDataChangeHandler
extends AbstractDataChangeHandler<RowDeleteDataChange>
implements ILayerEventHandler<RowObjectDeleteEvent>

DataChangeHandler to track row delete operations. Registers as ILayerEventHandler for the RowObjectDeleteEvent. It is intended to be used with a configuration that directly updates the backing data. Temporary data storage is not supported. It therefore is able to perform discard operations and will do nothing on save.

Since:

1.6

Field Summary

Fields inherited from class org.eclipse.nebula.widgets.nattable.datachange.AbstractDataChangeHandler

dataChanges, handleDataUpdate, keyHandler, layer

Constructor Summary

Constructors

Constructor	Description
RowDeleteDataChangeHandler(DataChangeLayer layer, CellKeyHandler<?> keyHandler)

Method Summary

Modifier and Type	Method	Description
Class<RowObjectDeleteEvent>	getLayerEventClass()
void	handleLayerEvent(RowObjectDeleteEvent event)
void	handleStructuralChange(IStructuralChangeEvent event)	Trigger handling of IStructuralChangeEvents to update locally stored changes, e.g.
boolean	isCellDirty(int columnPosition, int rowPosition)	Checks if the cell at the given position is dirty.
boolean	isColumnDirty(int columnPosition)	Checks if the column with the given position contains cells in a dirty state.
boolean	isRowDirty(int rowPosition)	Checks if the row with the given position contains cells in a dirty state.

Methods inherited from class org.eclipse.nebula.widgets.nattable.datachange.AbstractDataChangeHandler

clearDataChanges, disableTracking, enableTracking, getDataChanges, getKeyHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RowDeleteDataChangeHandler

public RowDeleteDataChangeHandler(DataChangeLayer layer,
                                  CellKeyHandler<?> keyHandler)

Parameters:

layer - The DataChangeLayer this handler should be assigned to.

keyHandler - The CellKeyHandler that is used to store dataChanges for a specific key.

Method Detail

handleStructuralChange

public void handleStructuralChange(IStructuralChangeEvent event)

Description copied from interface: DataChangeHandler

Trigger handling of IStructuralChangeEvents to update locally stored changes, e.g. update the row index of a key in case a row above was inserted or deleted.

Specified by:

handleStructuralChange in interface DataChangeHandler

Parameters:

event - The event to handle.

isColumnDirty

public boolean isColumnDirty(int columnPosition)

Description copied from interface: DataChangeHandler

Checks if the column with the given position contains cells in a dirty state.

Specified by:

isColumnDirty in interface DataChangeHandler

Parameters:

columnPosition - The position of the column whose dirty state should be checked.

Returns:

true if the column contains cells that are marked as dirty (data has changed and not saved yet), false if not.

isRowDirty

public boolean isRowDirty(int rowPosition)

Description copied from interface: DataChangeHandler

Checks if the row with the given position contains cells in a dirty state.

Specified by:

isRowDirty in interface DataChangeHandler

Parameters:

rowPosition - The position of the row whose dirty state should be checked.

Returns:

true if the row contains cells that are marked as dirty (data has changed and not saved yet), false if not.

isCellDirty

public boolean isCellDirty(int columnPosition,
                           int rowPosition)

Description copied from interface: DataChangeHandler

Checks if the cell at the given position is dirty.

Specified by:

isCellDirty in interface DataChangeHandler

Parameters:

columnPosition - The column position of the cell whose dirty state should be checked.

rowPosition - The row position of the cell whose dirty state should be checked.

Returns:

true if the cell is dirty (data has changed and not saved yet), false if not.

handleLayerEvent

public void handleLayerEvent(RowObjectDeleteEvent event)

Specified by:

handleLayerEvent in interface ILayerEventHandler<RowObjectDeleteEvent>

getLayerEventClass

public Class<RowObjectDeleteEvent> getLayerEventClass()

Specified by:

getLayerEventClass in interface ILayerEventHandler<RowObjectDeleteEvent>