Hello Ram,
I'm running a simple J2SE application (a hello world), I'm trying to persist
a simple drools workflow into Oracle DB.
Here's my configuration :
Oracle 10.2.0.4.0
drools-decisiontables-5.0.1.jar
hibernate-core-3.3.0.SP1.jar
...
persistence.xml :
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<persistence
version="1.0"
xsi:schemaLocation=
"http://java.sun.com/xml/ns/persistence
http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd
http://java.sun.com/xml/ns/persistence/orm
http://java.sun.com/xml/ns/persistence/orm_1_0.xsd"
xmlns:orm="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/persistence">
<persistence-unit name="org.drools.persistence.jpa"
transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>org.drools.persistence.processinstance.ProcessInstanceInfo</class>
<class>org.drools.persistence.processinstance.ProcessInstanceEventInfo</class>
<class>org.drools.persistence.processinstance.WorkItemInfo</class>
<properties>
<property name="hibernate.dialect"
value="org.hibernate.dialect.Oracle10gDialect"/>
<property name="hibernate.connection.driver_class"
value="oracle.jdbc.OracleDriver"/>
<property name="hibernate.connection.url"
<property name="hibernate.connection.username" value="xxxx"/>
<property name="hibernate.connection.password" value="xxxx"/>
<property name="hibernate.connection.autocommit" value="true" />
<property name="hibernate.max_fetch_depth" value="3"/>
<property name="hibernate.hbm2ddl.auto" value="update" />
<property name="hibernate.show_sql" value="true" />
<property name="hibernate.transaction.manager_lookup_class"
value="org.hibernate.transaction.JBossTransactionManagerLookup" />
</properties>
</persistence-unit>
</persistence>
----
orm.xml :
<?xml version="1.0" encoding="UTF-8"?>
<entity-mappings xmlns="http://java.sun.com/xml/ns/persistence/orm"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence/orm orm_1_0.xsd"
version="1.0">
<named-query name="ProcessInstancesWaitingForEvent">
<query>
select
processInstanceInfo.processInstanceId
from
ProcessInstanceInfo processInstanceInfo
where
:type in elements(processInstanceInfo.eventTypes)
</query>
</named-query>
</entity-mappings>
---
the code :
public static final void main(String[] args) {
try {
KnowledgeBuilder kbuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newClassPathResource("ruleflow.rf"),
ResourceType.DRF);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() > 0) {
for (KnowledgeBuilderError error: errors) {
System.err.println(error);
}
throw new IllegalArgumentException("Could not parse
knowledge.");
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
// create the entity manager factory and register it in the
environment
EntityManagerFactory emf = Persistence.createEntityManagerFactory(
"org.drools.persistence.jpa" );
Environment env = KnowledgeBaseFactory.newEnvironment();
env.set( EnvironmentName.ENTITY_MANAGER_FACTORY, emf );
// env.set( EnvironmentName.TRANSACTION_MANAGER, XXXXXXXXXXX );
// create a new knowledge session that uses JPA to store the runtime
state
StatefulKnowledgeSession ksession =
JPAKnowledgeService.newStatefulKnowledgeSession( kbase, null, env );
// invoke methods on your method here
ksession.startProcess( "com.sample.ruleflow" );
ksession.fireAllRules();
ksession.dispose();
} catch (Throwable t) {
t.printStackTrace();
}
}
I don't know If I miss something
--
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