| RE: [alf-dev] Why WS-Notification Rejected |
|
Yes, that is essentially the reasoning. To illustrate
the point, it seems unreasonable to require a client only tool to have the
infrastructure to allow subscription to events it may want to raise to ALF when
a simple Web Service call is sufficient. Further, client only tools are
not instantiated in one location and are not instantiated continuously which makes it hard to subscribe to their events.
Clearly there are ways around this but it just adds further
complexity to a mechanism that is already more complex then we
need. Thus we will start with the simple solution now and possiby add the
WS-Notification mechanism in the future if there is a compelling case to do so.
Tim From: alf-dev-bounces@xxxxxxxxxxx [mailto:alf-dev-bounces@xxxxxxxxxxx] On Behalf Of Robert Brady Sent: Thursday, September 29, 2005 1:04 PM To: alf-dev@xxxxxxxxxxx Subject: [alf-dev] Why WS-Notification Rejected Is my understanding that
WS-Notification was rejected for the following disadvantages
correct? WS-Notification vs. Ordinary WS ========================= Advantages of
WS-N * Standardized pub/subscribe/notify
pattern * Centralized configuration of ALF
via tool subscription * An implementation exists in Java
already (Apache Pubscribe) Disadvantages of
WS-N * Heavyweight, Onerous
implementation: Each tool needs to run a WS implementing WS-N and its
dependencies (e.g., a subscription is a stateful resource modeled as a WS-Resource,
utilizing WS-ResourceLifetime operations). * Functionality required that's not
used: Alf would be the only tool subscriber, so the WS-Topics spec of WS-N not
needed. Thanks -Bob ********************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. |