Client request / response from a specific jpd instance

Question

Hi all,
I have a business process whose instances are long running and need to be
individually accessed by multiple clients (mostly pageflow controllers on
numerous portlets).
How can I possibly target a client receive/send call to/from a specific
instance of a business process (not a specific JPD class, rather a specific
INSTANCE of a JPD that is already running and has not necesarily need
started by the current pageflow controller etc.)???
This seems like a pretty fundamental requirement - I'd hate to have to use
message brokers and message filter for all interchanges. Is that my only
option?
I looked into dynamic binding, but that seems to be a method for dynamically
selecting between multiple JPD classes - and not running instances of those
classes.
cheers,
Markus

Answer 1

Where is this getInstanceId() method. This does not seem to be a method of ProcessDefinition.
I can only see the getConversationId() and setConversationId() methods. The getConversationId()
method returns null.
"Markus Blumrich" <[email protected]> wrote:
This helps immensely - thank you for taking the time to post.
Really I think BEA should address this rather basic scenario in a more
developer friendly way - and if they have, then publish a how-to.
cheers,
Markus
"Yueming Xu" <[email protected]> wrote in message
news:[email protected]...
We had the same request, and I figured it out the hard way. The solutionis actually
pretty simple.
(1) When the JPD processes the initial request, it should usegetInstanceId()
to get the conversation ID and store it somewhere the client app canfind
(e.g.,
in an Entity bean), or return it to your client, and manage it at theclient.
(2) At a later time, client app may retrieve the conversation ID, andthen
send
follow-up requests to the JPD instance (which is actually an Entitybean
whose
primary key is the conversation ID).
(3) To send a request to a specific JPD instance using a process control,you
need to first call setConversationID(), and then call the request method.
Hope this helps.
Yueming
"Markus Blumrich" <[email protected]> wrote:
Hi all,
I have a business process whose instances are long running and need
to
be
individually accessed by multiple clients (mostly pageflow controllers
on
numerous portlets).
How can I possibly target a client receive/send call to/from a specific
instance of a business process (not a specific JPD class, rather aspecific
INSTANCE of a JPD that is already running and has not necesarily need
started by the current pageflow controller etc.)???
This seems like a pretty fundamental requirement - I'd hate to haveto
use
message brokers and message filter for all interchanges. Is that myonly
option?
I looked into dynamic binding, but that seems to be a method fordynamically
selecting between multiple JPD classes - and not running instancesof
those
classes.
cheers,
Markus