目前我正在创建一个类中的greenDAO DB连接(该类在每个静态方法中打开连接),并在需要时使用它。但我不确定这是否是最佳做法。 有人可以建议更好的方法吗?
我的代码:
import com.knowlarity.sr.db.dao.DaoMaster;
import com.knowlarity.sr.db.dao.DaoMaster.DevOpenHelper;
import com.knowlarity.sr.db.dao.DaoSession;
import com.knowlarity.sr.db.dao.IEntity;
public class DbUtils {
private static Object lockCallRecord =new Object();
private DbUtils(){};
public static boolean saveEntity(Context context , IEntity entity){
boolean t=false;
DevOpenHelper helper=null;
SQLiteDatabase db=null;
DaoMaster daoMaster=null;
DaoSession daoSession =null;
try{
helper = new DaoMaster.DevOpenHelper(context, IConstant.DB_STRING, null);
db = helper.getReadableDatabase();
daoMaster = new DaoMaster(db);
daoSession = daoMaster.newSession();
//Some business logic here for fetching and inserting the data.
}catch (Exception e){
Log.e("saveEntity", e.getStackTrace().toString());
}finally{
if(daoSession!=null)daoSession.clear();
daoMaster=null;
if(db.isOpen())db.close();
helper.close();
}
return t;
}