Android ORMapping库

 1 //实体类
 2 @Table(name = "dog")
 3 public class Dog {
 4     private boolean alive;
 5     private int id;
 6     private String name;
 7 
 8     public Dog() {
 9 
10     }
11 
12     public Dog(boolean alive, String name) {
13         this.alive = alive;
14         this.name = name;
15     }
16 
17     @Id(name = "id")
18     @Column(name = "id", type = DataType.Integer)
19     public int getId() {
20         return id;
21     }
22 
23     @Column(name = "name", type = DataType.Varchar, length = 20)
24     public String getName() {
25         return name;
26     }
27 
28     @Column(name = "alive", type = DataType.Boolean)
29     public boolean isAlive() {
30         return alive;
31     }
32 
33     public void setAlive(boolean alive) {
34         this.alive = alive;
35     }
36 
37     public void setId(int id) {
38         this.id = id;
39     }
40 
41     public void setName(String name) {
42         this.name = name;
43     }
44 }
45 
46 //添加
47 AnnotationDao dao = new AnnotationDao(this, Dog.class);
48 
49 String name = "dog1";
50 boolean alive = true;
51 
52 Dog dog = new Dog(alive, name);
53 dao.insert(dog);
54 
55 //查找
56 //列出所有对象
57 List list = dao.list();
58 //根据ID查询
59 dao.query(3);
60 
61 //删除
62 dao.delete(dog);
63 
64 //更新，更新时需要保证id字段跟数据库中的值是对应的，也就是之前调用list或query取出来的
65 dog.setName("dog2");
66 dao.update(dog);