Bug 80429 [Preferences] [Dialogs] FieldEditors should relax requirements to support DialogPages
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/FieldEditor.java
}
    /**
     * Disposes the SWT resources used by this field editor.
     */
    public void dispose() {
        
    }
    /**
     * Fills this field editor's basic controls into the given parent.
     * <p>
     * Subclasses must implement this method to create the controls
     * for this field editor.
     * </p>
     *
     * @param parent the composite used as a parent for the basic controls;
     *	the parent's layout must be a <code>GridLayout</code>
     * @param numColumns the number of columns
     */
    protected abstract void doFillIntoGrid(Composite parent, int numColumns);
    /**
     * Initializes this field editor with the preference value from
     * the preference store.
     * <p>
     * Subclasses must implement this method to properly initialize 
     * the field editor.
     * </p>
     */
    protected abstract void doLoad();
    /**
     * Initializes this field editor with the default preference value from