/// <summary>
 /// Löscht eine ObjectPosition aus der Datenbank
 /// </summary>
 /// <param name="obj">Objectposition</param>
 public static void delete(PlanningPosObject obj)
 {
     DatabaseManager manager;
     manager = new DatabaseManager();
     try
     {
         manager.delete(obj);
     }
     finally
     {
         manager.release();
     }
 }
 /// <summary>
 /// Löscht ein Object aus der Datenbank
 /// </summary>
 /// <param name="planningObject"></param>
 internal static void delete(PlanningObject planningObject)
 {
     DatabaseManager manager;
     manager = new DatabaseManager();
     try
     {
         manager.delete(planningObject);
     }
     finally
     {
         manager.release();
     }
 }