Hi Gregory,
Did you get any answers/help to this?
IMHO the JAX-RS auto-generation from entities needs more work. Note
that it is not something the Jersey team has developed. I need to
determine if this is being actively developed further, i am not sure
it is at the moment.
Paul.
On Apr 5, 2010, at 7:58 AM, Gregory Gerard wrote:
> This is a combination of JPA and transaction semantics that I'm not
> clear on.
>
> If I use a sequence table, my object's PK will be set after calling
> em.persist(obj). If I use IDENTITY, it's null. Doesn't matter if
> it's Derby or MySQL (nor should it but I just wanted to rule out the
> DB).
>
> Hmm. I call em.flush() and em.refresh(obj) to get back a usable
> identity to tell my client.
>
> However, when using NetBeans' automatic entity generation thingy
> with JAX-RS, things don't work of course.
>
> When I create an object using curl, the location header returned is
> incorrect in two ways and I'm not sure why.
>
> 1. If I don't tweak the generated code (resolveEntity is where I
> chose to put the em.flush() and em.refresh() calls), the location
> header comes back as null making it impossible to have something URN-
> like for chasing the resource down.
> 2. The Location header also doesn't include the name of the
> collection where said entity could be looked up again.
>
> Has anyone else noticed this? Is the automatic generation worth
> pursuing or is it not considered appropriate for production? It
> seems like decent code and technique -- I can't be the first to have
> run across this issue but I haven't found any updates to NetBeans
> that would fix it.
>
> I really don't want to add a DAO layer -- it's so repulsive, but I
> don't see an alternative since every entity needs to be flushed and
> refreshed to be useful in a web service or page.
>
> thanks,
> greg
>
> curl -v -X POST --data-binary @asite.xml -H"Content-Type:
> application/xml" -H"Accept: application/xml" http://localhost:8080/com.ggerard.gravity/resources/sites
> * About to connect() to localhost port 8080 (#0)
> * Trying 127.0.0.1... connected
> * Connected to localhost (127.0.0.1) port 8080 (#0)
>> POST /com.ggerard.gravity/resources/sites HTTP/1.1
>> User-Agent: curl/7.19.6 (i386-apple-darwin10.0.0) libcurl/7.19.6
>> zlib/1.2.3
>> Host: localhost:8080
>> Content-Type: application/xml
>> Accept: application/xml
>> Content-Length: 615
>>
> < HTTP/1.1 201 Created
> < X-Powered-By: Servlet/3.0
> < Server: GlassFish v3
> < Location: http://localhost:8080/com.ggerard.gravity/resources/1/
> < Content-Length: 0
> < Date: Mon, 05 Apr 2010 05:41:07 GMT
> <
> * Connection #0 to host localhost left intact
> * Closing connection #0
>
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