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1
9
10 package addressbook;
11
12 import addressbook.Address;
13 import java.util.ArrayList  ;
14 import java.util.Collection ;
15 import java.util.List ;
16 import javax.persistence.EntityManager;
17 import javax.persistence.EntityManagerFactory;
18 import javax.persistence.EntityTransaction;
19
20
24 public class DBHelper {
25
26
27 private DBHelper() {
28 }
29
30 private static Collection <Person> createPersons() {
31 Collection <Person> retVal = new ArrayList <Person>(5);
32 Person p = new Person();
33 p.setName("Tomas");
34 p.setSurname("Novak");
35 Address a = new Address();
36 a.setCity("Brno");
37 a.setCountry("Czech Republic");
38 a.setStreet("Za Skolou 15");
39 p.setAddress(a);
40 retVal.add(p);
41
42 p = new Person();
43 p.setName("Petr");
44 p.setSurname("Hanzelka");
45 a = new Address();
46 a.setCity("Prague");
47 a.setCountry("Czech Republic");
48 a.setStreet("Delostrelecka 8");
49 p.setAddress(a);
50 retVal.add(p);
51
52 p = new Person();
53 p.setName("Jan");
54 p.setSurname("Koudelka");
55 a = new Address();
56 a.setCity("Trnava");
57 a.setCountry("Slovak Republic");
58 a.setStreet("Slovakova 3");
59 p.setAddress(a);
60 retVal.add(p);
61
62 p = new Person();
63 p.setAddress(a);
64 p.setName("Petr");
65 p.setSurname("Novak");
66 a = new Address();
67 a.setCity("Prague");
68 a.setCountry("Czech Republic");
69 a.setStreet("Za Skolou 15");
70 retVal.add(p);
71
72 p = new Person();
73 p.setName("Alexandr");
74 p.setSurname("Nikiticenko");
75 a = new Address();
76 a.setCity("Moscow");
77 a.setCountry("Russia");
78 a.setStreet("Main Street 17e");
79 p.setAddress(a);
80 retVal.add(p);
81 return retVal;
82 }
83 }
84
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Java API By Example, From Geeks To Geeks.