package businessLogic; import java.rmi.RemoteException; import java.util.Vector; import dataAccess.DB4oManager; import domain.Owner; public class OwnerManager implements OwnerManagerInterface { DB4oManager dbMngr; public OwnerManager() { try { dbMngr = DB4oManager.getInstance(); } catch (Exception e) { e.printStackTrace(); } } /** * This method existing owners * */ public Vector getOwners() throws RemoteException, Exception { return dbMngr.getOwners(); } }