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1
2
3 package com.db4odoc.f1.symbian;
4
5
6 import java.io.File  ;
7 import java.io.IOException ;
8
9
10 import com.db4o.Db4o;
11 import com.db4o.ObjectContainer;
12 import com.db4o.ObjectSet;
13
14
15
16 public class SymbianTest {
17
18 public static final String YAPFILENAME = "formula1.yap";
19
20 public static void main(String [] args) throws IOException {
21 setObjects();
22 setObjectsSymbian();
23 getObjects();
24 getObjectsSymbian();
25 }
26
28 public static void setObjects(){
29 System.out.println("\nSetting objects using RandomAccessFileAdapter");
30 new File (YAPFILENAME).delete();
31 Db4o.configure().io(new com.db4o.io.RandomAccessFileAdapter());
32 try {
33 ObjectContainer db = Db4o.openFile(YAPFILENAME);
34 try {
35 db.set(new SymbianTest());
36 } finally {
37 db.close();
38 }
39 } catch (Exception ex){
40 System.out.println("Exception accessing file: " + ex.getMessage());
41 }
42 }
43
45 public static void setObjectsSymbian(){
46 System.out.println("\nSetting objects using SymbianIoAdapter");
47 new File (YAPFILENAME).delete();
48 Db4o.configure().io(new com.db4o.io.SymbianIoAdapter());
49 try {
50 ObjectContainer db = Db4o.openFile(YAPFILENAME);
51 try {
52 db.set(new SymbianTest());
53 } finally {
54 db.close();
55 }
56 } catch (Exception ex){
57 System.out.println("Exception accessing file: " + ex.getMessage());
58 }
59 }
60
62 public static void getObjects(){
63 System.out.println("\nRetrieving objects using RandomAccessFileAdapter");
64 Db4o.configure().io(new com.db4o.io.RandomAccessFileAdapter());
65 try {
66 ObjectContainer db = Db4o.openFile(YAPFILENAME);
67 try {
68 ObjectSet result=db.get(new Object ());
69 System.out.println("Objects in the database: " + result.size());
70 } finally {
71 db.close();
72 }
73 } catch (Exception ex){
74 System.out.println("Exception accessing file: " + ex.getMessage());
75 }
76 }
77
79 public static void getObjectsSymbian(){
80 System.out.println("\nRetrieving objects using SymbianIoAdapter");
81 Db4o.configure().io(new com.db4o.io.SymbianIoAdapter());
82 try {
83 ObjectContainer db = Db4o.openFile(YAPFILENAME);
84 try {
85 ObjectSet result=db.get(new Object ());
86 System.out.println("Objects in the database: " + result.size());
87 } finally {
88 db.close();
89 }
90 } catch (Exception ex){
91 System.out.println("Exception accessing file: " + ex.getMessage());
92 }
93 }
94 }
96
97 |
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