I am facing another problem in my little test-webapp. I have an EJB module (created via maven-pom) that basically wraps the data-access, so all it does is some DAOs i开发者_JAVA技巧mplemented as State
Stateless session beans do not maintain state. So does it mean they should not have instanc开发者_JAVA百科e variables?
The Java EE 6 Tutorial says: To improve performance, you might choose a stateless session bean if it has any of these traits:
This question already has answers here: How to inject @EJB, @PersistenceContext, @Inject, @Autowired, etc in @FacesConverter?
I\'m struggling to find a simple example that builds and deploys a message driven bean onto Oracle Middleware 11g (i.e., Weblogic). I\'m using dependency injection.
According to many examples it is possible to inject an EntityManager into @Stateless or @Singleton EJBs like this:
Does running an EJBQL UPDATE开发者_StackOverflow社区 statement defeat the performance benefits of container managed persistance when compared to modifing the accessors on a managed entity?
Are remote EJB calls, made from the same application server, alwa开发者_JAVA技巧ys optimized as local, in-memory calls, and is serialization of data skipped in this scenario?
I am having a EJB 3.0 Session Bean which implements the Local interface, and I have a pure POJO also.
Question 1: As per the book I follow to learn EJB author told that every lookup creates a new stateful session bean. So, what I did is defined a method init() with @PostConstruct annotation with a sys
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