涓涓悓Hibernate鐩稿悓鐨凱OJO錛屾病鏈変換浣曟柟娉曪紝涔熸病鏈夎窡DB4O鏈変換浣曡﹀悎銆?br>
1
package name.lgn.db4o.test.model;
2
3
public class Person 
{
4
5 private String firstName;
6
7 private String lastName;
8
9 private int age;
10
11
public Person(String firstName, String lastName, int age) {
12 this.firstName = firstName;
13 this.lastName = lastName;
14 this.age = age;
15
}
16
17 public String getFirstName() {
18 return firstName;
19 }
20
21 public void setFirstName(String value) {
22 firstName = value;
23 }
24
25 public String getLastName() {
26 return lastName;
27 }
28
29 public void setLastName(String value) {
30 lastName = value;
31 }
32
33 public int getAge() {
34 return age;
35 }
36
37 public void setAge(int value) {
38 age = value;
39 }
40
41
}
42
package name.lgn.db4o.test.model;2
3
public class Person {4
5
private String firstName;6
7
private String lastName;8
9
private int age;10
11
public Person(String firstName, String lastName, int age) {12
this.firstName = firstName;13
this.lastName = lastName;14
this.age = age;15
}16
17
public String getFirstName() {18
return firstName;19
}20
21
public void setFirstName(String value) {22
firstName = value;23
}24
25
public String getLastName() {26
return lastName;27
}28
29
public void setLastName(String value) {30
lastName = value;31
}32
33
public int getAge() {34
return age;35
}36
37
public void setAge(int value) {38
age = value;39
}40
41
}42
鍦ㄧ湅錛孌B4O鐨勮В鍐蟲柟妗堬細
1package name.lgn.db4o.test;
2
3import name.lgn.db4o.test.model.Person;
4
5import org.junit.Test;
6
7import com.db4o.Db4o;
8import com.db4o.ObjectContainer;
9import com.db4o.ObjectSet;
10
11public class TestDB4O {
12
13 @Test
14 public void testDB() {
15 ObjectContainer db = null;
16 try {
17 db = Db4o.openFile("persons.data");
18
19 Person brian = new Person("Brian", "Goetz", 39);
20 Person jason = new Person("Jason", "Hunter", 35);
21 Person clinton = new Person("Brian", "Sletten", 38);
22 Person david = new Person("David", "Geary", 55);
23 Person glenn = new Person("Glenn", "Vanderberg", 40);
24 Person neal = new Person("Neal", "Ford", 39);
25
26 db.set(brian);
27 db.set(jason);
28 db.set(clinton);
29 db.set(david);
30 db.set(glenn);
31 db.set(neal);
32
33 db.commit();
34
35 // Find all the Brians
36 ObjectSet brians = db.get(new Person("Brian", null, 0));
37 while (brians.hasNext())
38 System.out.println(brians.next());
39
40 } catch (Exception e) {
41 e.printStackTrace();
42 } finally {
43 if (db != null)
44 db.close();
45 }
46
47 }
48}
49
瀛樺叆鏁版嵁鐢╠b.set(...);鍙栧嚭鏁版嵁鐢╠b.get(...),鏄笉鏄潪甯鎬翰鍒囧拰綆鍗曪紵package name.lgn.db4o.test;2
3
import name.lgn.db4o.test.model.Person;4
5
import org.junit.Test;6
7
import com.db4o.Db4o;8
import com.db4o.ObjectContainer;9
import com.db4o.ObjectSet;10
11
public class TestDB4O {12
13
@Test14
public void testDB() {15
ObjectContainer db = null;16
try {17
db = Db4o.openFile("persons.data");18
19
Person brian = new Person("Brian", "Goetz", 39);20
Person jason = new Person("Jason", "Hunter", 35);21
Person clinton = new Person("Brian", "Sletten", 38);22
Person david = new Person("David", "Geary", 55);23
Person glenn = new Person("Glenn", "Vanderberg", 40);24
Person neal = new Person("Neal", "Ford", 39);25
26
db.set(brian);27
db.set(jason);28
db.set(clinton);29
db.set(david);30
db.set(glenn);31
db.set(neal);32
33
db.commit();34
35
// Find all the Brians36
ObjectSet brians = db.get(new Person("Brian", null, 0));37
while (brians.hasNext())38
System.out.println(brians.next());39
40
} catch (Exception e) {41
e.printStackTrace();42
} finally {43
if (db != null)44
db.close();45
}46
47
}48
}49
瀵逛簬涓嶉渶瑕佷嬌鐢ㄥぇ鍨婦B錛屼絾鍙堥渶瑕佸瓨鍌ㄦ暟鎹殑鏃跺欎笉闇瑕佸啀鐢╤ibernate+hsqldb浜嗭紝鍙渶瑕佷嬌鐢―B4O錛屽氨鍏ㄥ甫浜嗭紝鍙堟湁綆鍗曠殑鏁版嵁搴撴搷浣滐紝鍙堟湁鏁版嵁鐨勫瓨鍌紝榪樻湁鏁版嵁瀹屾暣鎬х殑淇濊瘉錛岀畝鍗曟柟渚匡紝浣曚箰涓嶄負鍛紵RCP寮婧愰」鐩憲鍚嶇殑RSSOWL鍦?.0涓篃宸茬粡鎶婂師鏈夌殑hiberante+hsqldb鏇挎崲涓篋B4O鐨勮В鍐蟲柟妗堜簡銆?br> 铏界劧OODBMS鐨勮礬榪樻湁寰堥暱錛岃屼笖灝辯幇鍦ㄧ湅錛屽拰RDBMS榪樻湁寰堥暱鐨勮窛紱伙紝浣嗘槸浠嶥B4O涓婏紝鎴戜滑榪樻槸鐪嬪埌浜嗗笇鏈涖傚湪DB4O鐨勭溂涓璈ibernate錛宩do絳夌瓑閮芥槸鏆傛椂鐨勮В鍐蟲柟妗堬紝瀵逛簬OODBMS鏉ヨORM鏈潵灝辨槸涓嶅瓨鍦ㄧ殑涓滆タ錛孫RM浠呬粎鏄負浜嗚В鍐砇DBMS鍒癘O鐨勬槧灝勶紝鑰孫ODBMS鏈潵灝辨槸鍘熺敓鐨勶紝鍏嶅幓浜嗕腑闂村眰錛屽厤鍘諱簡鐑︽伡銆?br>
涓嬭澆 db4o錛氳繖鏄竴縐嶇敤浜?Java 鐨勫紑婧愬璞℃暟鎹簱銆?
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