[jboss-user] [JBoss jBPM] - Re: Custom nodes problem

Olivier_Debels do-not-reply at jboss.com
Thu Sep 20 09:58:36 EDT 2007

I was thinking about adding a custom node which contains an action which actually is a container for other actions.  This container action has a fixed set of pluggable actions.  For example suppose I want a node where I need to perform A, B and C in sequence.  I could model it using three consecutive nodes or I could add a node with configuration:

  | <node>
  |     <A class="com.xxxxxxx.ImplementationA">
  |     <B class="com.xxxxxxx.ImplementationB">
  |     <C class="com.xxxxxxx.implementationC">
  | </node>

Of course I could also create a single action with:

  | <node>
  |     <containerAction class="com.xxxxx.containerAction">
  |           <A class="com.xxxxxxx.ImplementationA">
  |           <B class="com.xxxxxxx.ImplementationB">
  |           <C class="com.xxxxxxx.implementationC">
  |     </containerAction>
  | </node>

But then I need to parse the configuration of A, B and C actions myself.  I woud end up with a containerAction containing a configuration property with xml containing other action configuration.

So I felt the need to have action configuration which is recursive and some kind of container actions.

Since I don't see a way to do this right now in Jbpm (only one action allowed) because I prefer not to parse configuration in the execution of the handler and don't want to add a separate node for each action child, I came up with the multiple action node idea.

Anyway, I'm still searching the best solution, also considering the limited time constraint (you know how it feels ;-)).



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