我有两个这样的模型：

@Entity
public class Book {

    @Id
    Long _id;

    String name;

    @ToMany(referencedJoinProperty = "bookId")
    List<Chapter> chapters1;

    @ToMany(referencedJoinProperty = "bookId")
    List<Chapter> chapters2;
}


@Entity
public class Chapter {

    @Id
    Long _id;

    String name;
    int type;
    long bookId;
    @ToOne(joinProperty = "bookId")
    Book book;
}

有2种类型的章节type1和2，目前，当我得到chapters1时，GreenDAO返回所有type1和2，我怎么能在Book类中只得到type1或2？