Bug 232048 [Viewers] binary incompatibility (adding public fields) reported against jface.viewers
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/CellEditor.java
* at appropriate times. Subclasses may also extend or reimplement.
	 * </p>
	 */
	protected void focusLost() {
		if (isActivated()) {
			fireApplyEditorValue();
			deactivate();
		}
	}
	/**
	 * Performs the copy action. This default implementation does nothing.
	 * <p>
	 * Subclasses may override
	 * </p>
	 */
	public void performCopy() {
	}
	/**
	 * Performs the cut action. This default implementation does nothing.
	 * <p>
	 * Subclasses may override
	 * </p>
	 */
	public void performCut() {
	}
	/**
	 * Performs the delete action. This default implementation does nothing.
	 * <p>
	 * Subclasses may override
	 * </p>