public void SetEntitiesToUpdate(UnitOfWorkEntity entity)
 {
     updateEntities.Add(entity);
 }
 public void SetEntitiesToDelete(UnitOfWorkEntity entity)
 {
     deleteEntities.Add(entity);
 }
 public void SetEntitiesToInsert(UnitOfWorkEntity entity)
 {
     insertEntities.Add(entity);
 }