jsr339-experts@jax-rs-spec.java.net

[jsr339-experts] Re: [jax-rs-spec users] Re: Re: Please review: Feature, Configurable API update proposal.

From: Marek Potociar <marek.potociar_at_oracle.com>
Date: Fri, 19 Oct 2012 12:18:05 +0200

On Oct 17, 2012, at 6:52 PM, Sergey Beryozkin <sberyozkin_at_talend.com> wrote:

> On 17/10/12 14:44, Marek Potociar wrote:
>>
>> On Oct 16, 2012, at 2:11 PM, Sergey Beryozkin<sberyozkin_at_talend.com> wrote:
>>
>>> What is the difference between getEnabledFeatures and getFeatureInstances ?
>>
>> Features returned by getEnabledFeatures() are those ones that have been already enabled by runtime (i.e. the providers and properties registered by the feature are already part of the configuration).
>> OTOH getFeatureClasses() and getFeatureInstances() methods are just a list of all the features that have been registered (by the user) in the configuration. Please, check also the javadoc of the methods.
>>
>>> Does getFeatureInstances include the instances instantiated from classes referred to from getFeatureClasses ?
>>
>> No, it's just a list of all the features instances that were registered by the user (either using Configuration.register(Object, ...) on the client side or instances returned from Application.getSingletons() on the server side).
>>
>
> Thanks... I'm a bit tired right now and thus feeling very slow :-), it took me a number of minutes to grasp the answer - hope Bill will do it for 5 secs :-). So far I'm just thinking that that Configurable implementation I prototyped for supporting DynamicFeature in CXF will have few extra empty methods added to it - which is where my concern is...
>
> Cheers, Sergey

So you assume your users that register a feature do not need to check if there is such feature already enabled or see if the proper (pre-requisite) providers and/or properties are in place? Weird...

Marek