[jax-rs-spec users] [jsr339-experts] Re: No way to disable a Feature

From: Bill Burke <>
Date: Tue, 13 Dec 2011 09:20:15 -0500

On 12/13/11 6:11 AM, Marek Potociar wrote:
> On 12/12/2011 03:48 PM, Bill Burke wrote:
>> While the Feature interface has a onDisable() method, there's no way for the onDisable() method to be able to unregister
>> providers. The Configuration.getProviderXXXX() methods return immutable sets.
> Please clarify - are you suggesting to remove onDisable() and deffer the disabling mechanism to the Feature
> implementation or to add a common API for feature disabling?

I'll clarify. The Configuration interface has no way to unregister a
provider at the moment.

>> Also, the Configuration.setProperty() method should state that if the property value is null, then this means to delete
>> the property....OR...a removeProperty() method should be added.
> Can you (or anyone) think of a valid use case when a property can be expected to contain 'null' value? If not, I'll
> update the setProperty(...) javadoc shortly.

Servlet spec works in the same way IIRC.

Bill Burke
JBoss, a division of Red Hat