PS. Be careful. I just checked the links in this post and the code page
was retrieved from my cache. The new version does *not* have and error
message at the top. Hit refresh if it does. :-)
Douglas
Douglas McCarroll wrote:
> Douglas McCarroll wrote:
>
>> Thanks. I'll let you know how it goes.
>>
>
> Still stuck. :-)
>
> Same "Page request made for item with id = '{filmId=null}'" error.
>
> I believe that I've implemented Jeff's suggestions.
>
> I've refreshed this code listing so that it reflects my current code:
>
> http://www.brightworks.com/technology/tech_questions/hibernate_lazy_associations/code.txt
>
> Here's my current logging output:
>
> http://www.brightworks.com/technology/tech_questions/hibernate_lazy_associations/debug_log_02.txt
>
> Here's a nice variable view showing what HibernateAssembler.fill() returns:
>
> http://www.brightworks.com/technology/tech_questions/hibernate_lazy_associations/actor_destination_fill_result_at_app_startup.jpg
>
> The comments and questions that follow are addressed to Jeff Vroom in
> particular, but all are welcome to contribute...
>
> 1. Jeff explained a while back in this thread that FDMS and Hibernate
> currently don't do lazy loading in the same way -
> http://tech.groups.yahoo.com/group/flexcoders/message/57339 - I assume
> that this explains why fill() is returning so much data on Films in what
> is supposed to be a lazy fill() of Actors.
>
> 2. In any case, both the fill() results and the logging output - which I
> believe shows the data being sent over the wire - show the associated
> films as having a filmId of zero (in Java) or null (passed over the wire).
>
> 3. Jeff said that I should set the association properties for my
> filmActors destination as one-to-one. I'm guessing that this should be
> many-to-one, but am not sure. I've tried both it doesn't help my current
> problem, but I'd love a definitive answer on which this should be.
> Victor Rubba sent me some code that uses many-to-one for an intermediate
> object (albeit one with numeric ID, rather than complex object ID like
> mine). This is working code so it seems to support my guess.
>
> 4. I'm wondering what general approach I should take to resolving this.
> Here are my options:
>
> a. I can continue to post code and logs and hope that Jeff (or
> someone else) spots my error or identifies a bug in FDMS.
>
> b. I can dig in with the debugger. I'm already looking at
> HibernateAssembler.java (thanks, Adobe, for making source public!). Now
> it occurs to me that Hibernate itself is open source. Should I be
> digging into that and trying to figure out why it's giving me Film
> instances without ID values? This could be dangerous - I might learn
> more Java! :-) Seriously, what's the likelihood that I could help to
> resolve this problem by doing this, given that I have more time to put
> into this than Jeff does?
>
> c. I could re-zip the whole project and repost it if anyone else
> would like to play with it.
>
> d. Other suggestions?
>
> e. All of the above? :-)
>
> 5. Jeff said, "I think the hibernate assembler is missing an error test
> for <snip>. I’ll fix that right away as that would have saved you a lot
> of time."
> Can I get a copy of the fixed code?
>
> Finally, thanks to Jeff and to all for all your input so far.
>
> Douglas
>
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