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1 import org.ozoneDB.OzoneObject;
2 import java.util.*;
3
4 public class GarageImpl extends OzoneObject implements Garage {
5
6
10 final static long serialVersionUID = 1L;
11
12 private Hashtable cars;
13
14 public GarageImpl() {
15 cars = new Hashtable();
16 }
17
18 public void addCar_update( String  name, int yearOfConst ) throws Exception {
19 Car car = (Car)database().createObject( CarImpl.class.getName() );
20 car.setName( name );
21 car.setYearOfConst( yearOfConst );
22 cars.put( car.name(), car );
23 }
24
25 public Car carForName( String name ) {
26 return (Car)cars.get( name );
27 }
28
29 public Car removeCar_update( String name ) {
30 return (Car)cars.remove( name );
31 }
32
33 public Vector oldtimers() {
34 Vector result = new Vector();
35 for (Enumeration e=cars.elements(); e.hasMoreElements(); ) {
36 Car car = (Car)e.nextElement();
37 if (car.age() >= 20) {
38 result.add( car );
39 }
40 }
41 return result;
42 }
43
44 public void onDelete() {
45 for (Enumeration e=cars.elements(); e.hasMoreElements(); ) {
46 Car car = (Car)e.nextElement();
47 database().deleteObject( car );
48 }
49 }
50 }
51 |
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