Reusable generic base class DAOs with Android Room

Question

Is there any way to create reusable generic base class DAOs with Android Room?

public interface BaseDao {

  @Insert
  void insert(T object);

  @Up         


        

Answer 1

AFAIK, you can do it only for insert(), update(), and delete(), as it doesn't require specific SQL statement that needs to be verified at compile time.

example:

BaseDao.java

public interface BaseDao {

    @Insert
    void insert(T obj);

    @Insert
    void insert(T... obj);

    @Update
    void update(T obj);

    @Delete
    void delete(T obj);
}

UserDao.java

@Dao
abstract class UserDao implements BaseDao {

    @Query("SELECT * FROM User")
    abstract List getUser();

}

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