I was wondering: Imagine a scenario where eg
//POJO
public class User {
private String userName;
private String name;
private String surname;
private List<Blog> blogList;
//All getters and setters are found here and assume they're generated.
}
public class Blog {
private String title;
private String content;
private User author;
private Date datePublished;
private Date dateLastModified;
//All getters and setters have been generated (by Eclipse or NetBeans)
}
Imagine that these objects have been correctly mapped into their respective Hibernate configuration files.
My question:
How would I retrieve my user with the list of all the user blogs on code level? (ie, not allow hibernate to populate blogList
automatically for me. I want to add paging (ie from list 5, retrieve 20 list) and also, if you think carefully, this might be an infinite loop as a Blog has a User
entity which has a List<Blog>
entity.
How do I prevent this?
PS Just out of curiousity, how would I let Hibernate populate my blogList
on the configuration side?
Thanks in advance.
fetchType=FetchType.LAZY
) so that the collection elements are not fetched when the owning object is Query
with setFirstResult(..)
and setMaxResults(..)
in order to achieve paging. (and get rid of the collection then)
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.