* <pre>
* JpaBuilder builder = ...
* TransactionProxyFactory<Service> factory = new TransactionProxyFactory<Service>(
* builder, Service.class);
* Service service = new JpaService(factory.getTransactionScopedEntityManager());
* Service proxy = factory.getProxy(service);
* <pre>
* JpaBuilder builder = ...
* TransactionProxyFactory<Service> factory = new TransactionProxyFactory<Service>(
* builder, Service.class);
* Service service = new JpaService(factory.getTransactionScopedEntityManager());
* Service proxy = factory.getProxy(service);