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1 package org.myoodb.transactions;
25
26 public class Client
27 {
28 public static int PORT = 54321;
29 public static String  USERNAME = "admin";
30 public static String PASSWORD = "admin";
31
32 public static String NEIGHBORHOOD[][] =
33 {
34 {"John", "Smith"}, {"Mary", "Smith"}, {"Mark", "Johson"}, {"Barb", "Johson"}, {"Jack", "Smith"}, {"Kate", "Smith"}, {"Jean", "Smith"}, };
42
43 public static void main(String args[]) throws Exception
44 {
45 org.myoodb.MyOodbDatabase db = org.myoodb.MyOodbDatabase.open("myoodb://localhost:" + PORT, USERNAME, PASSWORD);
46
47
49 Family family = (Family) db.getRoot("The Smith Family");
50
51 if (family == null)
52 {
53 System.out.println("Create The Smith Family");
54
55 family = (Family) db.createRoot(FamilyDbImpl.class, "The Smith Family");
56 family.setName("Smith");
58 }
59 else
60 {
61 System.out.println("The Smith Family already created");
62 }
63
64 for (int i = 0; i < NEIGHBORHOOD.length; i++)
65 {
66 org.myoodb.MyOodbTransaction tx = db.createTransaction();
67 tx.begin();
68
69 Person person = (Person) db.createObject(PersonDbImpl.class);
70 person.setName(NEIGHBORHOOD[i][0]);
72
73 System.out.println(" Checking if Person " + person + " is part of the Smith Family");
74
75 System.out.println(" Is Person locked: " + person.isLocked());
76
77 if (NEIGHBORHOOD[i][1].equals("Smith") == false)
78 {
79 System.out.println(" Person " + person + " is not part of the Smith Family");
80
81 tx.rollback();
83 continue;
84 }
85
86 tx.begin();
88 family.add(person);
89
90 if (family.size() > 4)
91 {
92 System.out.println(" The Smith Family has reached their Maximum size: " + person);
93
94 tx.rollback();
96 tx.rollback();
98 continue;
99 }
100
101 tx.commit();
102
103 tx.commit();
104
105 System.out.println(" Person " + person + " is now offically part of the Smith Family");
106 }
107 }
108 }
109
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Java API By Example, From Geeks To Geeks.