Package org.eclipse.jface.viewers

Class EditingSupport

java.lang.Object
org.eclipse.jface.viewers.EditingSupport
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

  • Constructor Details

    • EditingSupport

      public EditingSupport(ColumnViewer viewer)
      Parameters:
      viewer - a new viewer

  • Method Details

    • getCellEditor

      protected abstract CellEditor getCellEditor(Object element)
      The editor to be shown
      Parameters:
      element - the model element
      Returns:
      the CellEditor

    • canEdit

      protected abstract boolean canEdit(Object element)
      Is the cell editable
      Parameters:
      element - the model element
      Returns:
      true if editable

    • getValue

      protected abstract Object getValue(Object element)
      Get the value to set to the editor
      Parameters:
      element - the model element
      Returns:
      the value shown

    • setValue

      protected abstract void setValue(Object element, Object value)
      Sets the new value on the given element. Note that implementers need to ensure that getViewer().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 element
      value - the new value

    • getViewer

      public ColumnViewer getViewer()
      Returns:
      the viewer this editing support works for

    • 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 editor
      cell - the cell the editor is working for

    • 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-editor
      cell - the cell the editor is working for