public abstract class ObservableValueEditingSupport extends EditingSupport
EditingSupport using the JFace Data Binding concepts to handle the
updating of an element from a CellEditor.| Constructor and Description |
|---|
ObservableValueEditingSupport(ColumnViewer viewer,
DataBindingContext dbc)
Constructs a new instance with the provided
viewer and
dbc. |
| Modifier and Type | Method and Description |
|---|---|
protected boolean |
canEdit(Object element)
Default implementation always returns
true. |
static EditingSupport |
create(ColumnViewer viewer,
DataBindingContext dbc,
CellEditor cellEditor,
IValueProperty cellEditorProperty,
IValueProperty elementProperty)
Returns an ObservableValueEditingSupport instance which binds the given
cell editor property to the given element property.
|
protected Binding |
createBinding(IObservableValue target,
IObservableValue model)
Creates a new binding for the provided
target and
model. |
protected abstract IObservableValue |
doCreateCellEditorObservable(CellEditor cellEditor)
Creates the observable value for the CellEditor.
|
protected abstract IObservableValue |
doCreateElementObservable(Object element,
ViewerCell cell)
Creates the observable value for the element.
|
protected Object |
getValue(Object element)
Default implementation always returns
null as this will be
handled by the Binding. |
protected void |
initializeCellEditorValue(CellEditor cellEditor,
ViewerCell cell)
Creates a
Binding between the editor and the element to be
edited. |
protected void |
saveCellEditorValue(CellEditor cellEditor,
ViewerCell cell)
Updates the model from the target.
|
protected void |
setValue(Object element,
Object value)
Default implementation does nothing as this will be handled by the
Binding.
|
getCellEditor, getViewerpublic ObservableValueEditingSupport(ColumnViewer viewer, DataBindingContext dbc)
viewer and
dbc.viewer - viewer to editdbc - dbc to create Bindingspublic static EditingSupport create(ColumnViewer viewer, DataBindingContext dbc, CellEditor cellEditor, IValueProperty cellEditorProperty, IValueProperty elementProperty)
viewer - the column viewerdbc - the DataBindingContext used for binding between the cell
editor and the viewer element.cellEditor - the cell editorcellEditorProperty - the cell editor property to be bound to the element.elementProperty - the element property to be bound to the cell editor.protected boolean canEdit(Object element)
true.canEdit in class EditingSupportelement - the model elementEditingSupport.canEdit(java.lang.Object)protected Object getValue(Object element)
null as this will be
handled by the Binding.getValue in class EditingSupportelement - the model elementEditingSupport.getValue(java.lang.Object)protected void setValue(Object element, Object value)
setValue in class EditingSupportelement - the model elementvalue - the new valueEditingSupport.setValue(java.lang.Object,
java.lang.Object)protected final void initializeCellEditorValue(CellEditor cellEditor, ViewerCell cell)
Binding between the editor and the element to be
edited. Invokes doCreateCellEditorObservable(CellEditor),
doCreateElementObservable(Object, ViewerCell), and then
createBinding(IObservableValue, IObservableValue).initializeCellEditorValue in class EditingSupportcellEditor - the cell editorcell - the cell the editor is working forprotected abstract IObservableValue doCreateCellEditorObservable(CellEditor cellEditor)
cellEditor - protected abstract IObservableValue doCreateElementObservable(Object element, ViewerCell cell)
element - cell - protected Binding createBinding(IObservableValue target, IObservableValue model)
target and
model. Default value update
strategies are used with the target to model updating on
UpdateValueStrategy.POLICY_CONVERT.target - model - protected final void saveCellEditorValue(CellEditor cellEditor, ViewerCell cell)
saveCellEditorValue in class EditingSupportcellEditor - the cell-editorcell - the cell the editor is working for
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