Usage of SplitN Join in ALBPM Studio

Question

Hi,
Can any one give usage of splitN-join activity in ALBPM..It would be very helpful if you could provide any sample code.. directly to run. I am trying it very hardly...but no vain. Please help me out...

Answer 1

A Multiple activity (called "Split-N" in releases before Oracle BPM 10g) is used in three scenarios:
(1) Voting design pattern - It's fairly common to want to form a committee at runtime of participants. The size of the committee can be a decision made at runtime. A copy of the work item instance is assigned to each of the people on the committee. Each participant has a "vote", but cannot act on the other committee member's work item instances votes since the instance is assigned to each person specifically using participant.next for the copied instance.
(2) RFP design pattern - The companies responding to the proposal are assigned the instance typically as the copied instance flows into an activity that is inside a parametric role. The parametric role in this example would be based on the supplier's name so only people in that supplier's company can respond the the proposal.
(3) Changing granularity of a work item instance. Although not suggested for work item instances that can break down into hundreds of individual work items, it is a simple technique to have a single batch job (e.g. batch of claims coming in) and breaking this down into its invidual components (e.g. each individual claim would become a separate work item instance inside the Multiple / Join).
Use Multiple when you're using any of these patterns and the number of copies spawned is determined at runtime.
A Split activity on the other hand is used when you do not need to determine the number of copies spawned at runtime. There is always more than one transition coming out of a Split activity. A copy of the instance variable flows through each of the unconditional transition leaving the Split and through each of the conditional transitions that evaluate as true coming out of the Split.
Here's some sample logic typically found inside a Multiple. This sample shows how to do a voting pattern as described above.
role as Role
// You need a "location" instance variable with the parametric value set before it reaches
//  this Multiple activity
logMessage "The location used for the parametric role will be:"  +  location using severity = DEBUG
logMessage "Hello Split Started to work: Desc :" + this.description
   + "Status :" + this.status
   + "Priority :" + this.priority using severity = DEBUG
role=Role.findParametric(name : "Customer", parameter : location)
logMessage "Role :"+role.name using severity = DEBUG
participants as Participant[]=role.participants
// this example sends a copy of the instance to participants assigned
//   to a specific parameter (based on location) in a parametric role
for each usr in participants do
   logMessage "Participant :" + usr.name using severity = DEBUG
   copy = clone(this)
   // if you have separated or predefined variables, set them
   //    individually as shown here
   copy.location = location
   // if you want to assign the instance spawned by the Multiple
   //    to a specific participant, do this:
   copy.participant.next = usr
end Dan