Comments on: Hibernate Annotations for a One-To-Many Mapping Featuring a Many Side, Composite, Primary Key having a Composite, Foreign, Sub-Key

By: Rakesh

Rakesh — Tue, 12 Jul 2011 12:24:40 +0000

Hi
I am getting below error at

@ManyToOne
Parent parentForeignKey;

in ChildPrimaryKey class
Attribute “parentForeignKey” has invalid mapping type in this context

By: martykube

martykube — Fri, 20 May 2011 00:50:22 +0000

Hi,
Sure, I am always looking for good content. What do you have in mind?
Marty

By: Marisha Sorzano

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By: Harshit

Harshit — Wed, 23 Mar 2011 17:47:42 +0000

Hi,
Thanks for the article.. It works and help in understanding adding foreign key …

By: martykube

martykube — Wed, 12 Jan 2011 01:52:00 +0000

Hi Abaile,
Thanks for the input – that makes a lot of sense. I developed this example against a small database and didn’t notice that the eager fetch sucked in the whole DB!
Marty

By: abaile

abaile — Tue, 11 Jan 2011 16:37:14 +0000

I had the same StackOerflowError problem. It was do to the hql pulling neer ending rows for some reason. To solve this, take the fetch=FetchType.EAGER out of the Parent Class @OneToMany annotation. This fixed it for me and was still pulling the right rows.

By: Bryan

Bryan — Tue, 02 Nov 2010 19:43:22 +0000

Fantastic post, the only example of this I’ve been able to find.

I’ve implemented this in my code, and loading by primary key, inserting, and deleting are all working great.

When I try to get hibernate to return more than a single record however, I get a StackOverflowError.

I’ve tried everything I can think of, any help would be greatly appreciated.

By: Edgar.MS

Edgar.MS — Wed, 09 Sep 2009 14:53:08 +0000

Hi again, the error was very foolish.

I was defined a List from org.hibernate.mapping.List instead of java.util.List, when I changed this import the example worked fine.

Sorry & Thanks.

By: martykube

martykube — Wed, 09 Sep 2009 12:57:06 +0000

Hi Edgar,

What type of list do you have in the parent class? My searching has shown two cases where this exception pops up.
1) When the collection is a user defined type
2) When you should be using a set instead of a list

HTH,
Marty

By: Edgar.MS

Edgar.MS — Wed, 09 Sep 2009 11:45:45 +0000

Hi, I’m other Edgar.

I was following this example and I have a problem with the list in the parent class. The error is ” Illegal attempt to map a non collection as a @OneToMany, @ManyToMany or @CollectionOfElements “.

Do you know this error and why I have it ??

Thanks in advance.

By: Edgar

Edgar — Wed, 24 Jun 2009 03:22:37 +0000

Thanks so much for this post. I was working with a case of a composite-key that contained a foreign-key. No doubt it would have taken a lot longer to figure out if you hadn’t spent the time to do this write-up. Thanks for your time and the excellent details.

By: Tarjei

Tarjei — Thu, 29 Jan 2009 12:51:02 +0000

Thanks for the nice writeup. I used it for a simple case of one table with a composite key.

In my experience, it is then better to use the @IdClass annotation. This may be worth knowing for people (like me) who dropped by this post and just needed composite keys.

Thanks.

By: Marco

Marco — Sun, 16 Nov 2008 18:35:26 +0000

In first time, thanks a lot for this post.

I would like to know as I make a search using “criteria by example” passing a specific primary key ?

Thank you more one time.