Package org.eclipse.jface.viewers
Class EditingSupport
- java.lang.Object
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- org.eclipse.jface.viewers.EditingSupport
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- Direct Known Subclasses:
ObservableValueEditingSupport
,PropertyEditingSupport
public abstract class EditingSupport extends Object
EditingSupport is the abstract superclass of the support for cell editing.- Since:
- 3.3
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Constructor Summary
Constructors Constructor Description EditingSupport(ColumnViewer viewer)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description protected abstract boolean
canEdit(Object element)
Is the cell editableprotected abstract CellEditor
getCellEditor(Object element)
The editor to be shownprotected abstract Object
getValue(Object element)
Get the value to set to the editorColumnViewer
getViewer()
protected void
initializeCellEditorValue(CellEditor cellEditor, ViewerCell cell)
Initialize the editor.protected void
saveCellEditorValue(CellEditor cellEditor, ViewerCell cell)
Save the value of the cell editor back to the model.protected abstract void
setValue(Object element, Object value)
Sets the new value on the given element.
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Constructor Detail
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EditingSupport
public EditingSupport(ColumnViewer viewer)
- Parameters:
viewer
- a new viewer
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Method Detail
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getCellEditor
protected abstract CellEditor getCellEditor(Object element)
The editor to be shown- Parameters:
element
- the model element- Returns:
- the CellEditor
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canEdit
protected abstract boolean canEdit(Object element)
Is the cell editable- Parameters:
element
- the model element- Returns:
- true if editable
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getValue
protected abstract Object getValue(Object element)
Get the value to set to the editor- Parameters:
element
- the model element- Returns:
- the value shown
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setValue
protected abstract void setValue(Object element, Object value)
Sets the new value on the given element. Note that implementers need to ensure thatgetViewer().update(element, null)
or similar methods are called, either directly or through some kind of listener mechanism on the implementer's model, to cause the new value to appear in the viewer.Subclasses should overwrite.
- Parameters:
element
- the model elementvalue
- the new value
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getViewer
public ColumnViewer getViewer()
- Returns:
- the viewer this editing support works for
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initializeCellEditorValue
protected void initializeCellEditorValue(CellEditor cellEditor, ViewerCell cell)
Initialize the editor. Frameworks like Databinding can hook in here and provide a customized implementation.Standard customers should not overwrite this method but
getValue(Object)
- Parameters:
cellEditor
- the cell editorcell
- the cell the editor is working for
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saveCellEditorValue
protected void saveCellEditorValue(CellEditor cellEditor, ViewerCell cell)
Save the value of the cell editor back to the model. Frameworks like Databinding can hook in here and provide a customized implementation.Standard customers should not overwrite this method but
setValue(Object, Object)
- Parameters:
cellEditor
- the cell-editorcell
- the cell the editor is working for
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