+1 Carsten
Felix Meschberger wrote: > Hi, > > While working on FELIX-1841, Pierre de Rop and I came across a missing > feature in the Declarative Services Specification 1.1: Functionality to > propagate service property updates for a bound service. > > In the current SCR trunk we implemented a workaround, which just calls > the bind method in case of such updates (guarded by a configuration > property due to non-compliant behaviour). This workaround may work or > not, but it is probably better to come up with a real solution. > > Therefore I propse the extension of Declarative Services 1.1 by adding > an "updated" method declaration in the service reference element. The > full proposal is written in FELIX-1893 [1] to which I also attached a > patched implementing this proposal. > > In short: > > * Extend the <reference> with an updated element naming a method > which is called when service registration properties of a bound > service are updated > * Define new namespace supporting this attribute. Only components > using this namespace (or a future newer one) will have support > for the updated attribute. Otherwise the attribute is ignored. > * The updated method has the same signature prototype specification > and lookup algorithm as the bind and unbind methods. > * Backwards compatibility is guaranteed by requiring a new namespace > for components using the updated method and by defaulting to > no propagation of updated service registration properties. > > If we agree on this proposal, I would like to bring it to the OSGi Dev > List (and file an enahcement bug with OSGi). > > WDYT ? > > Regards > Felix > > [1] https://issues.apache.org/jira/browse/FELIX-1893 > -- Carsten Ziegeler [email protected]
