I have a legacy application which uses Spring for bean management (AnnotationConfigWebApplicationContext) and CDI (inject, brought by jersey-spring dependency) for DI.
I have the following situation:
@Service
@RequestScoped
@Scope(value = "request")
public class InjectedClass {
private SomeEnum someAttribute;
public void getSomeAttribute() {
return someAttribute;
}
}
@Service
public class MiddleLayer {
@Inject
public MiddleLayer(InjectedClass injectedClass) {
}
private void middleLayerMethod() {
if (someAttribute == SomeEnum.Y) {
// do something specific
}
}
}
// controller
public class SomeController {
@Inject
// In this flow injectedClass instance is initialised with SomeAttribute = Y by ContainerRequestFilter
public SomeController(MiddleLayer middleLayer) {
}
public void someMethod () {
MethodResult result = middleLayer.middleLayerMethod();
// do some additional things with result
}
}
@Component
public class PeriodicActivity {
@Inject
// I need this MiddleLayer to be injected with injectedClass instance where SomeAttribute = X, since it doesn't go via request filter
public PeriodicActivity(MiddleLayer middleLayer) {
}
public void method () {
MethodResult result = middleLayer.middleLayerMethod();
// do some other things with result
}
}
Without DI what I need to happen would look like this:
public class PeriodicActivity() {
InjectedClass injectedClassObjA = new InjectedClass();
injectedClassObjA.setSomeAttribute(X);
MiddleLayer middleLayer = new MiddleLayer(injectedClassObjA);
middleLayer.middleLayerMethod();
}
I am looking to do something similar with dependencies. After some reading I am starting to wonder whether it is possible.
