Actually I don't have a real use case. At least not yet.
But here is an issue about it in Apache Wink jira:
https://issues.apache.org/jira/browse/WINK-47
On Fri, Jul 10, 2009 at 5:02 PM, Marc Hadley <Marc.Hadley_at_sun.com> wrote:
> On Jul 10, 2009, at 9:47 AM, Michael Elman wrote:
>
> So it seems to be bug in Jersey.
>> If I declare the following ContextResolver:
>>
>> @Provider
>> @Produces(MediaType.APPLICATION_FORM_URLENCODED)
>> public class MyContextResolver implements
>> ContextResolver<MyContextResolver.MyClass> {
>>
>> private static final MyClass MYCLASS = new MyClass();
>>
>> public static class MyClass {
>>
>> }
>>
>> public MyClass getContext(Class<?> type) {
>> return MYCLASS;
>> }
>> }
>>
>>
>> "providers.getContextResolver(MyClass.class, MediaType.WILDCARD_TYPE)"
>> returns null, while
>> "MediaType.WILDCARD_TYPE.isCompatible(MediaType.APPLICATION_FORM_URLENCODED_TYPE))"
>> is true.
>>
>> I'm curious why you need to pass a wildcard media type to
> getContextResolver. If you are calling this from a MessageBodyReader or
> MessageBodyWriter you should already have a concrete media type - right ?
> Perhaps you are working with multipart data ?
>
> Marc.
>
>
>
>
>> On Fri, Jul 10, 2009 at 4:22 PM, Marc Hadley <Marc.Hadley_at_sun.com> wrote:
>> Its doesn't say explicitly but the intent is that matching works as if
>> MediaType.isCompatible method was used. This method supports wildcards and
>> is commutative.
>>
>> Marc.
>>
>>
>> On Jul 10, 2009, at 2:18 AM, Michael Elman wrote:
>>
>> Hi,
>>
>> I'm somewhat confused how "*" in the Media Type value should be treated,
>> when using the javax.ws.rs.ext.Providers interface to get the providers
>> (MessageBodyReaders/Writers and ContextResolvers)
>> I mean should it be treated as a wildcard or as string?
>>
>> For example if I have the following providers:
>>
>> @Produces("text/plain")
>> class ProviderA implements MessageBodyWriter
>>
>> @Produces("text/*")
>> class ProviderB implements MessageBodyWriter
>>
>> @Produces("text/xml")
>> class ProviderC implements MessageBodyWriter
>>
>> If "*" is treated as a string, only ProviderB is matching.
>> If "*" is treated as a wildcard, all three providers are matching.
>>
>> So what is correct?
>>
>> Thanks,
>> Michael.
>>
>>
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