Using @Qualifier based on @Inject field CDI

Question

I'm having trouble with CDI conditional injection to use a kind of Strategy in EJB's injections.

My actual scenario is that:

public class someManagedBean {

    @Inject 
    @MyOwnQualifier(condition = someBean.getSomeCondition()) // not work because someBean is not already injected at this point
    private BeanInterface myEJB;

    @Inject
    SomeBean someBean;
}

@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD})
public @interface MyOwnQualifier {
    SomeCondition condition();
}

public class BeanInterfaceFactory {
    @Produces
    @MyOwnQualifier(condition = RoleCondition.ADMIN) 
    public BeanInterface getBeanInterfaceEJBImpl() {
        return new BeanInterfaceEJBImpl();
    }
}

public enum RoleCondition {
    ADMIN("ADMIN User");
}

Ok, scenario explained. Now the problem is that I need to get the value from someBean.getSomeCondition() that returns a RoleCondition, necessary for my @MyOwnQualifier. But at this time someBean is not already injected by CDI.

How I can make this line to work?

@Inject 
@MyOwnQualifier(condition = someBean.getSomeCondition()) // not work because some is not already injected at this point
private BeanInterface myEJB;

How is the right way to dynamically inject beans using qualifiers based on another injection's property value?

Answer 1

Try this...

public class someManagedBean {

    @Inject 
    @MyOwnQualifier
    private BeanInterface myEJB;
}

@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.FIELD, ElementType.METHOD})
public @interface MyOwnQualifier {
    SomeCondition condition();
}

public class BeanInterfaceFactory {

    @Inject
    SomeBean someBean

    @Produces
    @MyOwnQualifier
    public BeanInterface getBeanInterfaceEJBImpl() {
        if(someBean.getCondition()) {         
            return new BeanInterfaceEJBImpl();
        } else {
           ....
        }
    }
}

public enum RoleCondition {
    ADMIN("ADMIN User");
}