[seam-issues] [JBoss JIRA] Created: (SEAMJMS-3) Event Mapping Observer Method Interfaces - Egress

[Jordan Ganoff (JIRA)]

Event Mapping Observer Method Interfaces - Egress
-------------------------------------------------

                 Key: SEAMJMS-3
                 URL: https://jira.jboss.org/browse/SEAMJMS-3
             Project: Seam JMS
          Issue Type: Feature Request
            Reporter: Jordan Ganoff
            Priority: Blocker


Implement the egress routing (forwarding CDI events to a JMS destination) as per the spec.

>From JSR-299-20090521.pdf:

10.7. JMS event mappings
An event type may be mapped to JMS topic.
An event mapping is a special kind of observer method that is declared by an interface, for example:
interface EventMappings {
void mapLoggedInEvent(@Observes LoggedInEvent event, @Events Topic eventTopic);
}
Where the parameter of type Topic resolves to the following message destination:
@Resource(name="java:global/env/jms/Events")
@Produces @Events Topic eventTopic;
The event parameter specifies the mapped event type and bindings. Every message destination representing a topic that
any injected parameter resolves to is a mapped topic.
An event mapping may be specified as a member of any interface.
All observers of mapped event types must be asynchronous observer methods. If an observer for a mapped event type is
not an asynchronous observer method, the container automatically detects the problem and treats it as a deployment prob-
lem, as defined in Section 12.4, "Problems detected automatically by the container".
For every event mapping, the container must:
• send a message containing the serialized event and its event bindings to every mapped topic whenever an event with
   the mapped event type and bindings is fired, and
• monitor every mapped topic for messages containing events of that mapped event type and bindings and notify all loc-
   al observers whenever a message containing an event is received.
Thus, events with the mapped event type and bindings are distributed to other processes which have the same event map-
ping.


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