How to copy the attribute values of one instance into another instance.

Question

Say I have 3 instances and two attributes name ,id.
inst1 : id:1 ,name:abc
inst2: id:2 ,name:bcd
inst3: id:3 ,name:efg
now I want
inst: id:1 ,name:abc
bcd
efg
i.e is need to abort instance inst2 & inst3 before that copy the names bcd & efg to inst1.
Please let me know how to do this its very urgent.

Answer 1

Hi,
The tricky part of this is to provide your third instance a way to find the other two instances. Finding instances in a process is a bit like finding rows in a database. When doing a SELECT statement in a database, you have a primary key that will guarantee you that you'll only retrieve one row. In Oracle BPM there are a couple ways to do this. One way is to use the instance's id (the predefined variable id.id) to search for the two instances. Another is to use a "correlation" to find the instances.
This example assumes you'd like to look at instances based on a search filter. This filter assumes that you have a customerId variable that both of the instances share. It only returns those instances currently inside the process (the SearchScope logic below being set to "StatusScope.ONLY_INPROCESS" in the logic below). The only incoming variable it needs is the "customerId" variable that has already been set to some value in the other instance. Note that this uses the Fuego.Papi.ClientBusinessProcess object. This logic creates a search filter and only returns instances that meet a certain criteria (the two instances in the process). Once you get the instance, the "getVar()" method retrieves the "name" instance variable. This assumes that you have an instance variable "customerNames" defined as a String array that you are using to store the names retrieved from the two instances. The "abort()" method aborts the two instances it finds in the search.
cbp as ClientBusinessProcess = ClientBusinessProcess()
connectTo(cbp, processId : "/NameOfYourProcessHere")
instF as InstanceFilter = InstanceFilter()
create(instF, processService : cbp.processService, viewId : "TypeSearch")
instF.searchScope = SearchScope(participantScope : ParticipantScope.ALL,
                              statusScope : StatusScope.ONLY_INPROCESS)
logMessage "Customer Id is: " + customerId  using severity = DEBUG
addAttributeTo(instF, variable : "customerId",
                          comparator : IS, value : customerId)
for each inst in getInstancesByFilter(cbp, filter : instF) do
   // get the value of the order's amount for the instance
    instanceVarValue as Object = getVar(inst, var : "name")
    customerNames[] = String(instanceVarValue)
    logMessage "Customer name is: " + String(instanceVarValue) 
             using severity = DEBUG
    // aborts the instance in the process
    inst.abort()
endHope this helps,
Dan