Hi,
I have a composite that needs to support quite a few CDI event generators and observer methods. I would like to minimize the number of injected Event fields and dynamically fire events using the Event.select() method. While the simple event case works:
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.FIELD, ElementType.PARAMETER })
public static @interface MyQualifier {
}
...
@Inject
@MyQualifier
Event<MyEvent> myEvent;
...
myEvent.fire(new MyEvent())
...
public void eventListener(@Observes @MyQualifier MyEvent event) {
I am having problems with more advanced event triggering. For example, if I try to use an extension of AnnotationLiteral to dynamically fire an event I receive this compilation error:
public static class MyQualifierAnnotationLiteral extends AnnotationLiteral<Topic>{
}
[ERROR] Line 129: No source code is available for type javax.enterprise.util.AnnotationLiteral<T>; did you forget to inherit a required module?
Also if I try to use an enumeration as an annotation parameter
public enum MyEnum{
SomeValue;
}
@Qualifier
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.FIELD, ElementType.PARAMETER })
public static @interface MyQualifier {
MyEnum value();
}
MyQualifierImpl implements MyQualifier{
MyEnum value(){
return MyEnum.SomeValue;
}
@Override
public Class<? extends Annotation> annotationType() {
return MyQualifier.class
}
}
...
@Inject
Event<MyEvent> myEvent;
...
myEvent.select(new MyQualifierImpl() ).fire(new MyEvent());
...
public void eventListener(@Observes @MyQualifier(SomeValue) @MyQualifier MyEvent event) {
The qualifier is ignored and the observer method is invoked for every MyEvent fired.
