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1
2
3 package com.db4odoc.f1.activating;
4
5 import java.io.File  ;
6 import java.util.List ;
7
8 import com.db4o.Db4o;
9 import com.db4o.ObjectContainer;
10 import com.db4o.ObjectSet;
11 import com.db4odoc.f1.Util;
12 import com.db4o.P2LinkedList;
13
14
15
16 public class ActivationExample {
17
18 public static void main(String [] args){
19 testActivationDefault();
20 testActivationConfig();
21 testCascadeActivate();
22 testMaxActivate();
23 testMinActivate();
24 testActivateDeactivate();
25 testCollectionDef();
26 testCollectionActivation();
27 }
28
30 public static void storeSensorPanel(){
31 new File (Util.YAPFILENAME).delete();
32 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
33 try {
34 SensorPanel list = new SensorPanel().createList(10);
36 db.set(list);
38 } finally {
39 db.close();
40 }
41 }
42
44 public static void testActivationConfig(){
45 storeSensorPanel();
46 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
47 try {
48 db.ext().configure().activationDepth(1);
49 System.out.println("Object container activation depth = 1");
50 ObjectSet result = db.get(new SensorPanel(1));
51 listResult(result);
52 if (result.size() >0) {
53 SensorPanel sensor = (SensorPanel)result.get(0);
54 SensorPanel next = sensor.next;
55 while (next != null){
56 System.out.println(next);
57 next = next.next;
58 }
59 }
60 } finally {
61 db.close();
62 }
63 }
64
66 public static void testActivationDefault(){
67 storeSensorPanel();
68 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
69 try {
70 System.out.println("Default activation depth");
71 ObjectSet result = db.get(new SensorPanel(1));
72 listResult(result);
73 if (result.size() >0) {
74 SensorPanel sensor = (SensorPanel)result.get(0);
75 SensorPanel next = sensor.next;
76 while (next != null){
77 System.out.println(next);
78 next = next.next;
79 }
80 }
81 } finally {
82 db.close();
83 }
84 }
85
87 public static void testCascadeActivate(){
88 storeSensorPanel();
89 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
90 db.ext().configure().objectClass(SensorPanel.class).cascadeOnActivate(true);
91 try {
92 System.out.println("Cascade activation");
93 ObjectSet result = db.get(new SensorPanel(1));
94 listResult(result);
95 if (result.size() >0) {
96 SensorPanel sensor = (SensorPanel)result.get(0);
97 SensorPanel next = sensor.next;
98 while (next != null){
99 System.out.println(next);
100 next = next.next;
101 }
102 }
103 } finally {
104 db.close();
105 }
106 }
107
109 public static void testMinActivate(){
110 storeSensorPanel();
111 Db4o.configure().objectClass(SensorPanel.class).minimumActivationDepth(1);
115 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
116 try {
117 System.out.println("Minimum activation depth = 1");
118 ObjectSet result = db.get(new SensorPanel(1));
119 listResult(result);
120 if (result.size() >0) {
121 SensorPanel sensor = (SensorPanel)result.get(0);
122 SensorPanel next = sensor.next;
123 while (next != null){
124 System.out.println(next);
125 next = next.next;
126 }
127 }
128 } finally {
129 db.close();
130 Db4o.configure().objectClass(SensorPanel.class).minimumActivationDepth(0);
131 }
132 }
133
135 public static void testMaxActivate() {
136 storeSensorPanel();
137 Db4o.configure().objectClass(SensorPanel.class).maximumActivationDepth(2);
140
141 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
142 try {
143 System.out.println("Maximum activation depth = 2 (default = 5)");
144 ObjectSet result = db.get(new SensorPanel(1));
145 listResult(result);
146 if (result.size() > 0) {
147 SensorPanel sensor = (SensorPanel) result.get(0);
148 SensorPanel next = sensor.next;
149 while (next != null) {
150 System.out.println(next);
151 next = next.next;
152 }
153 }
154 } finally {
155 db.close();
156 Db4o.configure().objectClass(SensorPanel.class).maximumActivationDepth(Integer.MAX_VALUE);
157 }
158 }
159
161 public static void testActivateDeactivate(){
162 storeSensorPanel();
163 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
164 db.ext().configure().activationDepth(0);
165 try {
166 System.out.println("Object container activation depth = 0" );
167 ObjectSet result = db.get(new SensorPanel(1));
168 System.out.println("Sensor1:");
169 listResult(result);
170 SensorPanel sensor1 = (SensorPanel)result.get(0);
171 testActivated(sensor1);
172
173 System.out.println("Sensor1 activated:");
174 db.activate(sensor1,4);
175 testActivated(sensor1);
176
177 System.out.println("Sensor5 activated:");
178 result = db.get(new SensorPanel(5));
179 SensorPanel sensor5 = (SensorPanel)result.get(0);
180 db.activate(sensor5,4);
181 listResult(result);
182 testActivated(sensor5);
183
184 System.out.println("Sensor1 deactivated:");
185 db.deactivate(sensor1,5);
186 testActivated(sensor1);
187
188 System.out.println("Sensor 5 AFTER DEACTIVATE OF Sensor1.");
193 testActivated(sensor5);
194 } finally {
195 db.close();
196 }
197 }
198
200 public static void testActivated(SensorPanel sensor){
201 SensorPanel next = sensor;
202 do {
203 next = next.next;
204 System.out.println(next);
205 } while (next != null);
206 }
207
209 public static void storeCollection(){
210 new File (Util.YAPFILENAME).delete();
211 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
212 try {
213 List list = db.ext().collections().newLinkedList();
214 for (int i =0; i < 10; i++){
215 SensorPanel sensor = new SensorPanel(i);
216 list.add(sensor);
217 }
218 db.set(list);
219 } finally {
220 db.close();
221 }
222 }
223
225 public static void testCollectionDef(){
226 storeCollection();
227 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
228 db.ext().configure().activationDepth(5);
229 try {
230 ObjectSet result = db.get(List .class);
231 listResult(result);
232 P2LinkedList list = (P2LinkedList)result.get(0);
233 System.out.println("Default List activation depth: " + list.activationDepth());
234 for (int i = 0; i < list.size(); i++){
235 System.out.println("List element: " + list.get(i));
236 }
237 } finally {
238 db.close();
239 }
240 }
241
243 public static void testCollectionActivation(){
244 storeCollection();
245 ObjectContainer db = Db4o.openFile(Util.YAPFILENAME);
246 db.ext().configure().activationDepth(5);
247 try {
248 ObjectSet result = db.get(List .class);
249 listResult(result);
250 P2LinkedList list = (P2LinkedList)result.get(0);
251 System.out.println("Setting list activation depth to 0 ");
252 list.activationDepth(0);
253 for (int i = 0; i < list.size(); i++){
254 System.out.println("List element: " + list.get(i));
255 }
256 } finally {
257 db.close();
258 }
259 }
260
262 public static void listResult(ObjectSet result) {
263 System.out.println(result.size());
264 while(result.hasNext()) {
265 System.out.println(result.next());
266 }
267 }
268
270 }
271 |
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