6:53 a.m.
Alex Manly [http://community.jboss.org/people/alexmanly] created the discussion
"Re: Drools, Spring integration and JTA in container"
To view the discussion, visit: http://community.jboss.org/message/598807#598807
--------------------------------------------------------------
I have this same problem.
In the spring config I create the Transaction manager as follows:
<jee:jndi-lookup id="entityManagerFactory"
jndi-name="persistence/rd-domain-pu" />
<tx:jta-transaction-manager />
This creates a transaction manager with the type:
org.springframework.transaction.jta.JtaTransactionManager
My drools spring config is this:
<drools:kbase id="kbase1">
<drools:resources>
<drools:resource id="cloneFlow" type="DRF"
source="classpath:Clone.rf"/>
<drools:resource id="approvalFlow" type="DRF"
source="classpath:Approval.rf"/>
</drools:resources>
<drools:configuration>
<drools:mbeans enabled="true" />
<drools:event-processing-mode mode="STREAM" />
</drools:configuration>
</drools:kbase>
<drools:ksession id="jpaSingleSessionCommandService"
type="stateful" kbase="kbase1"
name="stateful-session">
<drools:configuration>
<drools:jpa-persistence>
<drools:transaction-manager ref="transactionManager"
/>
<drools:entity-manager-factory ref="entityManagerFactory"
/>
<drools:variable-persisters>
<drools:persister
for-class="javax.persistence.Entity"
implementation="org.drools.persistence.processinstance.persisters.JPAVariablePersister"/>
<drools:persister for-class="java.io.Serializable"
implementation="org.drools.persistence.processinstance.persisters.SerializableVariablePersister"/>
</drools:variable-persisters>
</drools:jpa-persistence>
<drools:work-item-handlers>
<drools:work-item-handler name="Human Task"
ref="humanTaskHandler"/>
</drools:work-item-handlers>
<drools:keep-reference enabled="true" />
<drools:clock-type type="REALTIME" />
</drools:configuration>
<drools:script>
<drools:start-process process-id="1"/>
<drools:fire-all-rules/>
</drools:script>
</drools:ksession>
No when the spring context is loaded I get the same error and the problem is the
initTransactionManager method in SingleSessionComand:
The problem is the class does start with "org.springframework" (in the first if
statement. But the class does not contain "jpa" in the second if statement.
Which means the line comment: //configure spring for JPA and distributed transactions
public void initTransactionManager(Environment env) {
Object tm = env.get( EnvironmentName.TRANSACTION_MANAGER );
if ( tm != null && tm.getClass().getName().startsWith(
"org.springframework" ) ) {
try {
Class<?> cls = Class.forName(
"org.drools.container.spring.beans.persistence.DroolsSpringTransactionManager"
);
Constructor<?> con = cls.getConstructors()[0];
this.txm = (TransactionManager) con.newInstance( tm );
logger.debug( "Instantiating DroolsSpringTransactionManager"
);
if ( tm.getClass().getName().toLowerCase().contains( "jpa" ) )
{
// configure spring for JPA and local transactions
cls = Class.forName(
"org.drools.container.spring.beans.persistence.DroolsSpringJpaManager" );
con = cls.getConstructors()[0];
this.jpm = ( JpaManager) con.newInstance( new Object[] { this.env }
);
} else {
// configure spring for JPA and distributed transactions
}
} catch ( Exception e ) {
logger.warn( "Could not instatiate
DroolsSpringTransactionManager" );
throw new RuntimeException( "Could not instatiate
org.drools.container.spring.beans.persistence.DroolsSpringTransactionManager", e );
}
} else {
logger.debug( "Instantiating JtaTransactionManager" );
this.txm = new JtaTransactionManager( env.get( EnvironmentName.TRANSACTION ),
env.get(
EnvironmentName.TRANSACTION_SYNCHRONIZATION_REGISTRY ),
tm );
this.jpm = new DefaultJpaManager(this.env);
}
}
Does anyone from Drools development know when the code will support a
"org.springframework.transaction.jta.JtaTransactionManager" class?
Thanks in advance
--------------------------------------------------------------
Reply to this message by going to Community
[http://community.jboss.org/message/598807#598807]
Start a new discussion in jBPM at Community
[http://community.jboss.org/choose-container!input.jspa?contentType=1&...]