Is there a formal bug report I can subscribe to?
Gili
Marc Hadley wrote:
>
> On Jan 20, 2009, at 7:22 AM, Gili wrote:
>
>>
>> Alternatively, simply add Request.evaluatePreconditions()
>> with no
>> arguments that would indicate that the resource does not exist. This
>> would be backwards compatible.
>>
> I think adding a new method as you suggest would be best. I'll add
> this to the list of proposed changes for JAX-RS 1.1.
>
> Marc.
>
>>
>> Paul Sandoz (via Nabble) wrote:
>>
>> >
>> > On Jan 20, 2009, at 2:25 AM, Gili wrote:
>> >
>> > >
>> > > I hope I didn't jump the gun, but upon taking at the Jersey
>> source-
>> > > code I
>> > > don't think it is technically possible to get this to work. I
>> filed
>> > > https://jersey.dev.java.net/issues/show_bug.cgi?id=185 but I
>> believe
>> > > this is
>> > > actually a bug in the specification. It's my understanding that
>> Marc
>> > > Hadley
>> > > reads this mailing list so hopefully he will run across this
>> post.
>> > >
>> >
>> > Yes, i think this is an oversight in the spec.
>> >
>> > So what you are proposing is if a null value for an entity tag is
>> > passed in then the application is stating the resource does not
>> exist.
>> > And a null value will be returned for the case of If-None-Match: *
>> is
>> > present.
>> >
>> > We may be able to resolve in the maintenance release, but i need to
>> > discuss with Marc.
>> >
>> > A workaround is to do the following:
>> >
>> > public void put (...., @HeaderParam("If-None-Match") String
>> value) {
>> > if (value.equals("*") {
>> > } else {
>> > }
>> > }
>> >
>> > Paul.
>> >
>> > > Gili
>> > >
>> > >
>> > > Gili wrote:
>> > >>
>> > >> Hi,
>> > >>
>> > >> My client issues an HTTP PUT with If-None-Match: * because it
>> > >> wishes to
>> > >> ensure the operation only proceeds if the resource does not
>> already
>> > >> exist.
>> > >> I'm not sure how to implement this using
>> > >> Request.evaluatePreconditions on
>> > >> the server side. I want to be able to support both If-None-
>> Match and
>> > >> If-Match headers on the server.
>> > >>
>> > >> If the resource doesn't exist then I can't invoke
>> > >> Request.evaluatePreconditions(EntityTag) because I have no
>> > >> EntityTag. If I
>> > >> omit this call altogether but the client specifies If-Match:
>> > >> <value> then
>> > >> I will fail to handle this header and the call with go ahead
>> even
>> > >> though
>> > >> it should not. Any ideas?
>> > >>
>> > >> Thank you,
>> > >> Gili
>> > >>
>> > >
>> > > --
>> > > View this message in context:
>> >
>> http://n2.nabble.com/Request.evaluatePreconditions-and-If-None-Match%3A*-tp2184385p2184454.html
>> > > Sent from the Jersey mailing list archive at Nabble.com.
>> > >
>> > >
>> > >
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>> > This email is a reply to your post @
>> >
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>> >
>>
>> View this message in context: Re: [Jersey]
>> Request.evaluatePreconditions and If-None-Match:*
>> Sent from the Jersey mailing list archive at Nabble.com.
>
> ---
> Marc Hadley <marc.hadley at sun.com>
> CTO Office, Sun Microsystems.
>
>
>
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