dependencies {
  compile 'com.kkmoving.open:oosqlite:1.0'
}

 public class User extends OOSqliteEntity {   
      private static final int NAME_COL_ID = 1;
      private static final int AGE_COL_ID = 2; 

      @Indexing
      @ColumnTag(NAME_COL_ID)    
      String name;  

      @ColumnTag(AGE_COL_ID)
      int age;    

      @Transient    
      boolean choosen;        

      float score;        
 }

public class DemoApplication extends Application {
    @Override    
    public void onCreate() {
        super.onCreate();        
        DatabaseManager.init(this);    
    }
}

public class DatabaseManager {    

    public static void init(Context context) {        
        OODatabase database = new OODatabase("app.db", 1); 
        database.registerEntity(User.class);

        OOSqliteManager.getInstance().register(database);
        OOSqliteManager.getInstance().initAllDatabase(context);    
    }   
}

User.insert(user);

User.query(User.class, null);

User.update(user);

User.delete(user);