Hi Pardeep,
I have gotten this functionality to work.
I am using SQL Server, but that is just a difference in the persistence.xml or
datasource.
You are seeing SessionInfo data, so your persistence is there, did you add this?
<class>org.drools.persistence.processinstance.variabletypes.JPAPersistedVariable</class>
Here is the main points of my code.
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("org.drools.persistence.jpa");
env = KnowledgeBaseFactory.newEnvironment();
env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
VariablePersistenceStrategyFactory.getVariablePersistenceStrategy()
.setPersister("javax.persistence.Entity",
"org.drools.persistence.processinstance.persisters.JPAVariablePersister");
session = JPAKnowledgeService.newStatefulKnowledgeSession(knowledgeBase,
null, env);
KnowledgeRuntimeLogger logger =
KnowledgeRuntimeLoggerFactory.newFileLogger(session, "log/claimsdemo");
trackingProcessEventListener = new TrackingProcessEventListener();
session.addEventListener(trackingProcessEventListener);
Map<String, Object> parameterMap =
new HashMap<String, Object>();
parameterMap.put("claim", claim);
processInstance = session.startProcess(CLAIM_FLOW, parameterMap);
Bill
________________________________
From: "[email protected]" <[email protected]>
To: [email protected]
Sent: Thu, October 29, 2009 5:56:18 AM
Subject: [rules-users] Drools Persistence Prob : No values going into
'VaraibleInstanceInfo' Table
Hi,
I am working on persisting Drools session info into the database.
For that I have taken a sample project from
http://blog.athico.com/2009/09/drools-flow-variable-persistence.html.
When I tried to debug the project, no values are inserted into the table
'VaraibleInstanceInfo' table.
However In between the debugging I am able to see data going into the table
'SessionInfo' , 'ProcessInstaceInfo', WorkItemInfo' table. But no data is going
into the 'VaraibleInstanceInfo' and 'ProcessInstanceEventInfo' table.
I have taken the code for VariableInstanceInfo.java,
SerializablePersistedVariable.java, JPAPersistedVariable.java and other
required classes for running the project from
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-persistence-jpa/src/main/java/org/drools/persistence/processinstance/
Kindly tell me what going wrong in this. I am using Mysql database for
persistence storage.
Thanks & Regards
Pardeep Ruhil
L&T Infotech Ltd
Mumbai
Ph: +919820283884
Larsen & Toubro Infotech Ltd.
www.Lntinfotech.com
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