users@jersey.java.net

[Jersey] Re: Parameter converter order from Jersey 1.x to Jersey 2.x

From: Behrooz Nobakht <nobeh5_at_gmail.com>
Date: Wed, 17 Jun 2015 18:38:18 +0200

Digging in my Jersey archive, I found this
https://java.net/projects/jersey/lists/users/archive/2014-09/message/137

I think I can already confirm the answer for my previous email.
Any other comments?

On Wed, Jun 17, 2015 at 4:30 PM, Behrooz Nobakht <nobeh5_at_gmail.com> wrote:

> Hi,
>
> I have tried to dig documentation of JAX-RS 1.0 and JAX-RS 2.0 to
> be able to analyze and compare, however, no luck.
>
> Our situation is the following:
>
> - We upgrade from Jersey 1.x to Jersey 2.x in a large code base.
> - Some of the REST resources on Jersey 1.x used Java enum types as query
> parameters.
> - We had customized enum message body reader/writer in Jersey 1.x.
> - We also upgraded the above to Jersey 2.x compat.
>
> I would like to confirm the following regarding Jersey 1.x and Jersey 2.x:
>
> - In Jersey 1.x, there was no difference between ParamConverterProvider
> and MessageBodyReaderWriter.
> In other words, you could use either to provide the necessary parameters
> into the resources method parameters.
> - In Jersey 2.x, because of compatibility with JAX-RS 2.0, there is an
> explicit difference between
> ParamConverterProvider and MessageBodyReaderWriter. In other words, one
> should explicit and specific
> implementations for params and response/request body although the
> implementations might be similar.
>
> Our observation was that our enum string values started to be rejected as
> of the upgrade to Jersey 2.x.
> The issue was the our custom enum serializers were not picked up for
> parameter conversion and that's
> why Jersey's internal param converter for enum values rejected lower case
> strings for enums.
>
> The only way I could explain this was the above theory about the
> difference of ParamCoverterProvider
> and MessageBodyReaderWriters from Jersey 1.x to Jersey 2.x.
> Is this correct?
>
> Thanks,
> Behrooz
>
>


-- 
-- Behrooz Nobakht