request factory list of children behavior when persist()

[Yan]

Hi there, 

I am having a hard time to understand this. 

One Entity Proxy (parent) contains a list of other Entity Proxy (children).  I build bi-directional relationship in JPA. 

On client side, I get a list of children and then immediately enable edit in RF, and send it to backend to persist.

From client, I am retrieving the children list populated correctly, but when I persist the exact same object to backend, I see one less child object (it is set to null) in the setter() in EntityProxy. The size of children list is still the same, but obviously one of the child is now null. 

Why is that the case?

Thanks,

Yan

[Yan]

This seems to have something to do with my Child entity proxy in turn contains a collection of ValueProxy object. 

And, if the child proxy does not have any valueproxy object, then I see this behavior (i.e., request factory sends in NULL instead of the object).

Thanks,

Yan

[TimOnGmail]

Same thing (or similar) is happening to me - see: https://groups.google.com/forum/?fromgroups=#!searchin/google-web-toolkit/list$20of$20valueproxy/google-web-toolkit/-VkVe6BZ_D8/DYv_WSXB9-4J

Did you ever get this figured out?

- Tim

[TimOnGmail]

Nevermind about the below - I found it was my fault.  See the link below for info.

- Tim