多個一對多1個表greenDAO

Question

我有2個型號是這樣的：

@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型章type1和2，目前，當我得到chapters1，greenDAO返回所有type1和2，我怎麼能Book類中只有type1或2？

Answer 1

嘗試執行此查詢

Select from Chapter where type = [1 or 2]