I am new to apache camel and I am testing camel-jpa to poll from table and
display records
Following is main class
EntityManagerFactory entityManagerFactory =
Persistence.createEntityManagerFactory("LoanServicePU");
CamelContext camelContext = new DefaultCamelContext();
JpaComponent jpa = new JpaComponent();
jpa.setEntityManagerFactory(entityManagerFactory);
JpaTransactionManager myTM=new JpaTransactionManager();
myTM.setEntityManagerFactory(entityManagerFactory);
jpa.setTransactionManager( myTM );
jpa.setCamelContext(camelContext);
camelContext.addRoutes(new JpaRouteBuilder());
camelContext.addComponent("jpa",jpa);
camelContext.start();
Thread.sleep(10000);
camelContext.stop();
System.out.println("Done");
Following is jparouter class
public void configure() throws Exception {
from("jpa://com.pns.ab.model.LoanRequest?consumeDelete=false;"
+ "consumer.delay=2000;maxMessagesPerPoll=1000;"
+
"consumer.namedQuery=selectLoanRequests").to("stream:out");
}
I configured persistence.xml and its under META-INF, in fact in eclipse I
start Java Project and then set JPA facet
But I am getting following error:
[main] INFO org.apache.camel.impl.DefaultCamelContext - Apache Camel 2.12.3
(CamelContext: camel-1) started in 1.426 seconds
[Camel (camel-1) thread #0 - jpa://com.pns.ab.model.LoanRequest] WARN
org.apache.camel.component.jpa.JpaConsumer - Consumer
Consumer[jpa://com.pns.ab.model.LoanRequest?consumeDelete=false%3Bconsumer.delay%3D2000&consumer.namedQuery=selectLoanRequests]
failed polling endpoint:
Endpoint[jpa://com.pns.ab.model.LoanRequest?consumeDelete=false%3Bconsumer.delay%3D2000&consumer.namedQuery=selectLoanRequests].
Will try again at next poll. Caused by:
[javax.persistence.TransactionRequiredException - joinTransaction has been
called on a resource-local EntityManager which is unable to register for a
JTA transaction.]
javax.persistence.TransactionRequiredException: joinTransaction has been
called on a resource-local EntityManager which is unable to register for a
JTA transaction.
at
org.eclipse.persistence.internal.jpa.transaction.EntityTransactionWrapper.registerIfRequired(EntityTransactionWrapper.java:91)
at
org.eclipse.persistence.internal.jpa.EntityManagerImpl.joinTransaction(EntityMa
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