Darin Wilcox [
http://community.jboss.org/people/zoikks] created the discussion
"Processing"
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http://community.jboss.org/message/641864#641864
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Hello,
I am using jBPM 5.1.0.Final to execute some processes. I started a process with
parameters where one of the parameters is an ArrayList<?> named
"itemList". I'm trying to access the "itemList" from within a
rule using the following syntax:
when
$process : WorkflowProcessInstance()
$a : ArrayList() from ((ArrayList)$process.getVariable("arrayList"))
then
System.out.println("Size: " + $a.size());
However, the condition never seems to be true when I use an ArrayList (I assume the same
thing would happen using any object that implements Collection). I have used other
singular objects such as String without a problem and read it properly from the process in
the condition portion. Additionally, the arrayList object is accessible in the
consequence as long I don't check for it in the condition.
Can anyone tell me why the ArrayList cannot be read from the process parameters in the
condition portion of a rule?
Are there any options to this scenario other than loading the elements from the ArrayList
into working memory and running a "from collect" on them?
I have attached code that demonstrates the issue.
Thanks.
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