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

Interface DataChangeHandler

All Known Implementing Classes:

AbstractDataChangeHandler, PersistenceUpdateDataChangeHandler, RowDeleteDataChangeHandler, RowInsertDataChangeHandler, TemporaryUpdateDataChangeHandler, UpdateDataChangeHandler

public interface DataChangeHandler

Interface that specifies a handler that creates and tracks data changes.

Since:

1.6

Method Summary

Modifier and Type	Method	Description
void	clearDataChanges()	Clear the locally stored changes.
void	disableTracking()	Disable tracking of data changes to avoid tracking of changes that are caused by save or discard operations.
void	enableTracking()	Enable tracking of data changes to keep track of all changes.
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.

Method Detail

disableTracking

void disableTracking()

Disable tracking of data changes to avoid tracking of changes that are caused by save or discard operations.

enableTracking

void enableTracking()

Enable tracking of data changes to keep track of all changes.

handleStructuralChange

void handleStructuralChange(IStructuralChangeEvent event)

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.

Parameters:

event - The event to handle.

clearDataChanges

void clearDataChanges()

Clear the locally stored changes.

isColumnDirty

boolean isColumnDirty(int columnPosition)

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

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

boolean isRowDirty(int rowPosition)

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

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

boolean isCellDirty(int columnPosition,
                    int rowPosition)

Checks if the cell at the given position is dirty.

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.