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1
21 package com.db4o.test;
22
23 import com.db4o.ObjectContainer;
24 import com.db4o.ObjectSet;
25 import com.db4o.ext.ExtDb4o;
26 import com.db4o.ext.MemoryFile;
27
28 public class AnnotationTest {
29
30 public static void main(String  [] args) {
31 MemoryFile file = new MemoryFile();
32 ObjectContainer db = ExtDb4o.openMemoryFile(file);
33 try {
34 fillDBwithSheeps(db);
35 db = ExtDb4o.openMemoryFile(file);
36 retriveSheep(db);
37
38 db = ExtDb4o.openMemoryFile(file);
39 System.out.println("\n");
40 updateSheep(db);
41
42 db = ExtDb4o.openMemoryFile(file);
43 System.out.println("\n");
44 deleteSheep(db);
45
46 } finally {
47 db.close();
48 }
49 }
50
51 private static void updateSheep(ObjectContainer db) {
52 System.out.println("updating annotated sheeps");
53 Sheep sheep = (Sheep) db.get(new Sheep("test7", null)).next();
54 sheep.setName(sheep.getName() + "_new");
55 db.set(sheep);
56 ObjectSet<Sheep> result = db.get(Sheep.class);
57 while (result.hasNext()) {
58 System.out.println(result.next());
59 }
60
61 System.out.println("updating not annotated sheeps");
62 SheepNotAnnotated notAnnot = (SheepNotAnnotated) db.get(
63 new SheepNotAnnotated("notAnnotTest7", null)).next();
64 notAnnot.setName(notAnnot.getName() + "_new");
65 db.set(notAnnot);
66 ObjectSet<SheepNotAnnotated> res = db.get(SheepNotAnnotated.class);
67 while (res.hasNext()) {
68 System.out.println(res.next());
69
70 }
71
72 db.close();
73 }
74
75 private static void deleteSheep(ObjectContainer db) {
76 System.out.println("deleting annotated sheeps");
77 Sheep sheep = (Sheep) db.get(new Sheep("test15", null)).next();
78 db.delete(sheep);
79 ObjectSet<Sheep> result = db.get(Sheep.class);
80 while (result.hasNext()) {
81 System.out.println(">>" + (Sheep) result.next());
82 }
83 System.out.println("deleting not annotated sheeps");
84 SheepNotAnnotated notAnnot = (SheepNotAnnotated) db.get(
85 new SheepNotAnnotated("notAnnotTest15", null)).next();
86 db.delete(notAnnot);
87 ObjectSet<SheepNotAnnotated> res = db.get(SheepNotAnnotated.class);
88 while (res.hasNext()) {
89 System.out.println(">>>" + (SheepNotAnnotated) res.next());
90 }
91 db.commit();
92 db.close();
93 }
94
95 private static void retriveSheep(ObjectContainer db) {
96 System.out.println("retriving annotated sheeps");
97 ObjectSet<Sheep> result = db.get(new Sheep("test23", null));
98 System.out.println((Sheep) result.next());
99
100 System.out.println("retriving not annotated sheeps");
101 ObjectSet<SheepNotAnnotated> res = db.get(new SheepNotAnnotated(
102 "notAnnotTest23", null));
103 System.out.println((SheepNotAnnotated) res.next());
104 db.close();
105 }
106
107 private static void fillDBwithSheeps(ObjectContainer db) {
108 Sheep parent = null;
109 for (int i = 0; i < 36; i++) {
110 Sheep sheep = new Sheep("test" + i, parent);
111 db.set(sheep);
112 parent = sheep;
113 }
114
115 SheepNotAnnotated notAnnotParent = null;
116 for (int j = 0; j < 36; j++) {
117 SheepNotAnnotated notAnnotChild = new SheepNotAnnotated(
118 "notAnnotTest" + j, notAnnotParent);
119 db.set(notAnnotChild);
120 notAnnotParent = notAnnotChild;
121 }
122
123 db.commit();
124 db.close();
125 }
126
127 }
128 |
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