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1
21 package com.db4o.test;
22
23 import com.db4o.*;
24 import com.db4o.query.*;
25
26 public class CountAnnotatedSheep {
27 public final static int NUMSHEEP=10;
28
29 public void configure() {
30 Db4o.configure().activationDepth(0);
31 Db4o.configure().updateDepth(0);
32 }
33
34 public void store() {
35 Sheep parent=null;
36 SheepNotAnnotated noParent=null;
37 for(int i=0;i<10;i++) {
38 Sheep sheep=new Sheep(String.valueOf(i+1),parent);
39 SheepNotAnnotated noSheep=new SheepNotAnnotated(sheep.getName(),noParent);
40 Test.store(sheep);
41 Test.store(noSheep);
42 parent=sheep;
43 noParent=noSheep;
44 }
45 }
46
47 public void testRead() {
48 Test.objectContainer().purge();
49 Sheep curSheep = (Sheep) fetch(Sheep.class,String.valueOf(NUMSHEEP));
50 int sheepCount=1;
51 while(curSheep.parent!=null) {
52 Test.ensure(curSheep.constructorCalled());
53 curSheep=curSheep.parent;
54 sheepCount++;
55 }
56 Test.ensureEquals(NUMSHEEP,sheepCount);
57
58 SheepNotAnnotated curNoSheep = (SheepNotAnnotated) fetch(SheepNotAnnotated.class,String.valueOf(NUMSHEEP));
59 Test.ensure(!curNoSheep.constructorCalled());
60 Test.ensure(curNoSheep.parent==null);
61 }
62
63 public void testUpdate() {
64 Test.objectContainer().purge();
65 Sheep curSheep = (Sheep) fetch(Sheep.class,String.valueOf(NUMSHEEP));
66 String  oldName=curSheep.getName();
67 curSheep.setName(oldName+"X");
68 Test.store(curSheep);
69 SheepNotAnnotated curNoSheep = (SheepNotAnnotated) fetch(SheepNotAnnotated.class,String.valueOf(NUMSHEEP));
70 Test.objectContainer().ext().activate(curNoSheep,1);
71 String oldNoName=curNoSheep.getName();
72 curNoSheep.setName(oldNoName+"X");
73 Test.store(curNoSheep);
74 Test.commit();
75 Test.reOpen();
76 fetch(Sheep.class,oldName+"X");
77 }
80
81 private Object fetch(Class clazz,String name) {
82 Query noSheepQuery=Test.query();
83 noSheepQuery.constrain(clazz);
84 noSheepQuery.descend("name").constrain(name);
85 ObjectSet noSheep=noSheepQuery.execute();
86 Test.ensureEquals(1,noSheep.size());
87 return noSheep.next();
88 }
89
90 }
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