8:09 p.m.
Gary Struthers [http://community.jboss.org/people/GaryS] created the discussion
"rule.ConsequenceException only with JPA"
To view the discussion, visit: http://community.jboss.org/message/620233#620233
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I've adapted Salaboy's /04-jBPM5-PersistentEmergencyServiceProcess to my process
and rule. I copied it's 2 process managers and jpa configuration and adapted his test
class. The h2 database connection works. I made another process manager that doesn't
use
JPAKnowledgeService, it just calls kbase.newStatefulKnowledgeSession()
My rule execute with kbase.newStatefulKnowledgeSession()
AFTER RULEFLOW COMPLETED process...
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 4.788 sec
But with JPAKnowledgeService
Hibernate: update ProcessInstanceInfo set lastModificationDate=?, lastReadDate=?,
processId=?, processInstanceByteArray=?, startDate=?, state=?, OPTLOCK=? where
InstanceId=? and OPTLOCK=?
BEFORE ACTIVATION FIRED rule:applicationReady activationId:applicationReady [3, 2]
declarations: $process=WorkflowProcessInstance1 [processId=XXX,state=1](2);
$vars=FreshmanReadPIvars [XXX](3) ruleflow-group: assignApplication
1 09/08 17:44:59,788[main] ERROR
drools.persistence.SingleSessionCommandService.rollbackTransaction - Could not commit
session
org.drools.runtime.rule.ConsequenceException: rule: applicationReady
at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
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3:03 p.m.
New subject: [jBPM] - Re: rule.ConsequenceException only with JPA
Gary Struthers [http://community.jboss.org/people/GaryS] created the discussion
"Re: rule.ConsequenceException only with JPA"
To view the discussion, visit: http://community.jboss.org/message/620458#620458
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I made the problem go away but I don't understand why. I have a rule that updates a
field in a process variable pojo.
rule "applicationReady"
ruleflow-group "assignApplication"
when
$process: WorkflowProcessInstance();
$vars :PIvars() from (PIvars)$process.getVariable("vars");
eval($vars.getAppId() == 0);
then
System.out.println("!!Begin firing rule applicationReady " + $vars);
$vars.setApplicationReady(true);
# $process.setVariable("vars", $vars);
System.out.println("!!End firing rule applicationReady" + $vars);
end
Commenting out $process.setVariable("vars", $vars); works with both JPA and
without. My pojo is inserted as a Fact. Salaboy's example
rule "New Ambulance for Heart Attack Emergencies"
ruleflow-group "select_vehicle"
when
$process: WorkflowProcessInstance()
Emergency(type == "Heart Attack") from
$process.getVariable("emergency")
then
System.out.println("A new Ambuance is being created!");
Ambulance ambulance = new Ambulance("MyAmbulance");
((WorkflowProcessInstance)kcontext.getKnowledgeRuntime().getProcessInstance($process.getId())).setVariable("vehicle",
ambulance);
insert(ambulance);
end
Creates a new pojo, where mine just sets a field variable and in my case I'm not sure
what is the reliable way to do it.
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Gary Struthers