That's my question too.
The JSR 311 Spec refers to it but it was not clear to me
On 6/15/08, Mark Volkmann <mark_at_ociweb.com> wrote:
> On Jun 15, 2008, at 7:31 PM, Victor Grazi wrote:
>
>> Hmm, am I missing something - what then is the use of "Entity
>> Providers"?
>
> Documentation on Jersey and JAX-RS seems so scarce now. Maybe I'm just
> not looking in the right place. Where can I read about entity
> providers in Jersey?
>
>> On Sun, Jun 15, 2008 at 10:02 AM, Mark Volkmann <mark_at_ociweb.com>
>> wrote:
>> On Jun 15, 2008, at 1:04 AM, Victor Grazi wrote:
>>
>> Using the JAX-RS API, I am assuming there is a way to automatically
>> transform custom objects to any of a number of supported output
>> formats.
>> But it is not clear to me how it is done or what the life cycle
>> would be.
>>
>> For example, I would like to be able to create a method that returns
>> a Java object (of a specified type @GET public MyClass
>> someGetMethod() - no @ProduceMime specified), and depending on the
>> Content-Type in the HTTP request, have a custom converter
>> automatically invoked that would serialize that Java object to any
>> of the Content-Types supported by my application (xml, plain text,
>> etc), and automatically return the converted result in the response.
>>
>> This would allow me to create a single method that returns a Java
>> type, and have that type automatically converted to the output
>> format specified by the client, without having to create a method
>> implementation for each Content-Type in the request.
>>
>> Of course I would expect the developer to create the transformation
>> code for each return type and output format, I am just not clear on
>> what the interfaces are, how to hook it in, and in general how (or
>> if) it works.
>>
>> If this is possible, can anyone please point me to some code samples
>> and/or explanation?
>>
>>
>> It is my understanding the JAX-RS doesn't address this. I'm
>> convinced that the best way to do this for XML is to use XStream.
>> You can find a quick tutorial I put together on XStream at
>> http://www.ociweb.com/mark/programming/XStream.html
>> .
>>
>> ---
>> Mark Volkmann
>>
>>
>>
>>
>>
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>
>
> ---
> Mark Volkmann
>
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>
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