What is an EJB, and what does it do? - Stack Overflow
An EJB is a Java component, containing business logic, that you deploy in a container, and that benefits from technical services provided by the container, usually in a declarative way, thanks …
java - What does the @EJBs annotation do? - Stack Overflow
I know roughly what this construction does: it creates a SomeType EJB and injects the object into another EJB. @EJB(name="name1") SomeType someVariable Now I have a class which …
java - Why should we use EJB? - Stack Overflow
What is EJB, and why we should use it? Please explain in simple language. Thank you.
EJB. What is, why it exist and HOW it works? - Stack Overflow
Feb 27, 2010 · Every EJB book I've seen talks about the EJB life cycle and how it interacts with the app server. I wouldn't have to read tons to find it.
What is the difference between @Inject and @EJB - Stack Overflow
May 10, 2016 · I'm currently learning the new Java EE 6 component models and am confused with the latest dependency injection mechanism. So here are my questions: 1) What is the …
Web Services vs EJB vs RMI, advantages and disadvantages?
Jan 6, 2010 · 9 Between EJB and RMI, EJB would certainly be better - it has everything RMI has and much more via the container (object pooling, transaction management, etc.) Between EJB …
java - Should I use @EJB or @Inject - Stack Overflow
The @EJB is used to inject EJB's only and is available for quite some time now. @Inject can inject any managed bean and is a part of the new CDI specification (since Java EE 6). In …
Difference between Java Bean and Enterprise Java Beans?
An EJB (Enterprise Java Bean) is much more complex They only reside in application servers that handle EJBs (Tomcat doesn't hold EJBs). There are 3 types of EJBs: Session: Usually contain …
java - Exception while preparing the app : Unable to load the EJB ...
Jan 14, 2025 · java.lang.RuntimeException: Unable to load the EJB module. DeploymentContext does not contain any EJB. Check the archive to ensure correct packaging for …
jpa - Testing an EJB with JUnit - Stack Overflow
Jun 24, 2011 · How should I test an EJB 3.1 which gets an instance of EntityManager injected? A possible EJB: @Stateless @LocalBean public class CommentService { @PersistenceContext …