"bcn" wrote :
| 1. Can you really use the EJB annotation only in the main class (and only
for static fields)?
|
That's what the spec says.
"bcn" wrote :
| In real-world application that would make it almost useless.
|
|
Why do you think so?
>From what i understand, they do have a valid reason for making this
>restriction. Consider you have a Main class into which you have to inject the
>bean. Remember that when you use 'java' to run this class, it invokes the
>static main method. So if you want to access the injected EJB, that member too
>should be static. In some of the examples, users usually create an object of
>the same class in the static main method and then use the instance variables:
| public class MyClass {
|
| @EJB
| private MyEJB bean;
|
| public static void main(String args[])
| {
| MyClass obj = new MyClass();
| obj.callMyMethod();
| }
|
| public void callMyMethod()
| {
| bean.xxxMethod();
| }
| }
Consider this scenario shown above. A new object of the class was created and
then used to access the bean. The application client container has no way to
inject the @EJB for this newly created object (since it has no control on it).
That's the reason (in my opinion) why the field has to be static.
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