Inject @EJB bean based on conditions

Question

A newbie question: is there anyway that I can inject different beans based on a condition that I set in a properties file. Here\'s what I want to achieve:

I set some

Answer 1

I don't think you can modify the type of the bean being injected. I would say this is a Java restriction as it is a strongly typed language :)

You can however have the scenario where multiple beans implement the same interface, and you want to inject a specific implementation of that interface, as follows:

@Local
public interface MyBean {
}

@Stateless
public class MyBeanImpl1 implements MyBean {
}

@Stateless
public class MyBeanImpl2 implements MyBean {
}

Then you could do:

public MyClass {

@EJB(beanName="MyBeanImpl1")
MyBean myBean;

}

or

public MyClass {

@EJB(beanName="MyBeanImpl2")
MyBean myBean;

}

Depending on the implementation you want to inject.