5.9.3. Camel JPA エンドポイント / ルート設定

@PersistenceContext
EntityManager em;

@Inject
UserTransaction userTransaction;

WildFlyCamelContext camelctx = contextFactory.createCamelContext(getClass().getClassLoader());

EntityManagerFactory entityManagerFactory = em.getEntityManagerFactory();

// Configure a transaction manager
JtaTransactionManager transactionManager = new JtaTransactionManager();
transactionManager.setUserTransaction(userTransaction);
transactionManager.afterPropertiesSet();

// Configure the JPA endpoint to use the correct EntityManagerFactory and JtaTransactionManager
final JpaEndpoint jpaEndpoint = new JpaEndpoint();
jpaEndpoint.setCamelContext(camelctx);
jpaEndpoint.setEntityType(Customer.class);
jpaEndpoint.setEntityManagerFactory(entityManagerFactory);
jpaEndpoint.setTransactionManager(transactionManager);

camelctx.addRoutes(new RouteBuilder() {
@Override
public void configure() throws Exception {
    from("direct:start")
    .to(jpaEndpoint);
}
});

camelctx.start();

Customer customer = new Customer("John", "Doe");
ProducerTemplate producer = camelctx.createProducerTemplate();
producer.sendBody("direct:start", customer);

// Query the in memory database customer table to verify that a record was saved
CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
CriteriaQuery<Long> query = criteriaBuilder.createQuery(Long.class);
query.select(criteriaBuilder.count(query.from(Customer.class)));

long recordCount = em.createQuery(query).getSingleResult();

Assert.assertEquals(1L, recordCount);