Examples of javax.enterprise.inject.spi.InjectionPoint

javax.enterprise.inject.spi.InjectionPoint
Provides access to metadata about an injection point. May represent an {@linkplain javax.inject.Inject injected field} or aparameter of a {@linkplain javax.inject.Inject bean constructor}, {@linkplain javax.inject.Inject initializer method}, {@linkplain javax.enterprise.inject.Produces producer method}, {@linkplain javax.enterprise.inject.Disposes disposer method}or {@linkplain javax.enterprise.event.Observes observer method}.

If the injection point is a dynamically selected reference obtained then the metadata obtain reflects the injection point of the {@link Instance}, with the required type and any additional required qualifers defined by {@linkplain Instance Instance.select()}.

Occasionally, a bean with scope {@link javax.enterprise.context.Dependent @Dependent} needs to access metadata relatingto the object to which it belongs. The bean may inject an {@code InjectionPoint} representing the injection point into whichthe bean was injected.

For example, the following producer method creates injectable Logger s. The log category of a Logger depends upon the class of the object into which it is injected.
```
 @Produces Logger createLogger(InjectionPoint injectionPoint) { return Logger.getLogger(injectionPoint.getMember().getDeclaringClass().getName()); } 
```
Only {@linkplain javax.enterprise.context.Dependent dependent} objects, may obtain information about the injection point towhich they belong.
@author Gavin King @author Pete Muir


    @SuppressWarnings("unchecked")
    @Test
    @SpecAssertions({ @SpecAssertion(section = "11.5.7", id = "a"), @SpecAssertion(section = "11.5.7", id = "ba") })
    public void testProducerMethodInjectionPoint1() {
        InjectionPoint ip = extension.getProducerAlpha();
        assertNotNull(ip);
        assertTrue(annotationSetMatches(ip.getQualifiers(), Foo.class));
        assertNotNull(ip.getBean());
        assertEquals(extension.getProducingBean(), ip.getBean());
        verifyType(ip, Alpha.class, Integer.class);
        verifyAnnotated(ip);
        verifyMember(ip, InjectingBean.class);
        assertFalse(ip.isDelegate());
        assertFalse(ip.isTransient());
    }

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    @SuppressWarnings("unchecked")
    @Test
    @SpecAssertions({ @SpecAssertion(section = "11.5.7", id = "a"), @SpecAssertion(section = "11.5.7", id = "ba") })
    public void testProducerMethodInjectionPoint2() {
        InjectionPoint ip = extension.getProducerBravo();
        assertNotNull(ip);
        assertTrue(annotationSetMatches(ip.getQualifiers(), Bar.class));
        assertNotNull(ip.getBean());
        assertEquals(extension.getProducingBean(), ip.getBean());
        verifyType(ip, Bravo.class, Integer.class);
        verifyAnnotated(ip);
        verifyMember(ip, InjectingBean.class);
        assertFalse(ip.isDelegate());
        assertFalse(ip.isTransient());
    }

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    @SpecAssertions({ @SpecAssertion(section = "11.3.21", id = "a") })
    public void testField() {
        AnnotatedType<?> type = getCurrentManager().createAnnotatedType(Library.class);
        assertEquals(type.getFields().size(), 1);
        AnnotatedField<?> field = type.getFields().iterator().next();
        InjectionPoint ip = getCurrentManager().createInjectionPoint(field);
        validateParameterizedType(ip.getType(), Book.class, String.class);
        annotationSetMatches(ip.getQualifiers(), Monograph.class, Fictional.class);
        assertNull(ip.getBean());
        assertEquals(field.getJavaMember(), ip.getMember());
        assertNotNull(ip.getAnnotated());
        assertFalse(ip.isDelegate());
        assertTrue(ip.isTransient());
    }

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    public void testConstructorParameter() {
        AnnotatedType<?> type = getCurrentManager().createAnnotatedType(Library.class);
        assertEquals(type.getConstructors().size(), 1);
        AnnotatedConstructor<?> constructor = type.getConstructors().iterator().next();
        AnnotatedParameter<?> parameter = constructor.getParameters().get(1);
        InjectionPoint ip = getCurrentManager().createInjectionPoint(parameter);
        validateParameterizedType(ip.getType(), Book.class, String.class);
        annotationSetMatches(ip.getQualifiers(), Fictional.class);
        assertNull(ip.getBean());
        assertEquals(constructor.getJavaMember(), ip.getMember());
        assertNotNull(ip.getAnnotated());
        assertFalse(ip.isDelegate());
        assertFalse(ip.isTransient());
    }

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    public void testMethodParameter() {
        AnnotatedType<?> type = getCurrentManager().createAnnotatedType(Library.class);
        assertEquals(1, type.getMethods().size());
        AnnotatedMethod<?> method = type.getMethods().iterator().next();
        AnnotatedParameter<?> parameter = method.getParameters().get(2);
        InjectionPoint ip = getCurrentManager().createInjectionPoint(parameter);
        validateParameterizedType(ip.getType(), Book.class, Integer.class);
        annotationSetMatches(ip.getQualifiers(), Default.class);
        assertNull(ip.getBean());
        assertEquals(method.getJavaMember(), ip.getMember());
        assertNotNull(ip.getAnnotated());
        assertFalse(ip.isDelegate());
        assertFalse(ip.isTransient());
    }

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    @SpecAssertion(section = "10.3", id = "a")
    public void testInjectedAnyEventCanFireEvent() {
        Billing billing = getInstanceByType(Billing.class);
        billing.reset();
        Bean<MiniBar> miniBarBean = getUniqueBean(MiniBar.class);
        InjectionPoint eventInjection = null;
        for (InjectionPoint candidate : miniBarBean.getInjectionPoints()) {
            if (candidate.getMember().getName().equals("miniBarEvent")) {
                eventInjection = candidate;
                break;
            }
        }


        assert eventInjection != null;
        assert eventInjection.getQualifiers().size() == 1;
        assert eventInjection.getQualifiers().contains(AnyLiteral.INSTANCE);


        CreationalContext<MiniBar> miniBarCc = getCurrentManager().createCreationalContext(miniBarBean);
        MiniBar miniBar = miniBarBean.create(miniBarCc);
        miniBar.stock();
        assert billing.isActive();

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    public void testInjectedEventCanHaveBindings() {
        Billing billing = getInstanceByType(Billing.class);
        billing.reset();
        Bean<MiniBar> miniBarBean = getUniqueBean(MiniBar.class);


        InjectionPoint eventInjection = null;
        for (InjectionPoint candidate : miniBarBean.getInjectionPoints()) {
            if (candidate.getMember().getName().equals("itemLiftedEvent")) {
                eventInjection = candidate;
                break;
            }
        }


        assert eventInjection != null;
        assert eventInjection.getQualifiers().size() == 1;
        assert eventInjection.getQualifiers().contains(new AnnotationLiteral<Lifted>() {
        });


        CreationalContext<MiniBar> miniBarCc = getCurrentManager().createCreationalContext(miniBarBean);
        MiniBar miniBar = miniBarBean.create(miniBarCc);
        miniBar.stock();

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    return Collections.emptySet();
  }


  @Override
  public Object create(final CreationalContext creationalContext) {
    final InjectionPoint injectionPoint = Container.instance().services().get(CurrentInjectionPoint.class).peek();
    return ConversationalEventImpl.of(injectionPoint, manager, bus);
  }

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    return Collections.emptySet();
  }


  @Override
  public Object create(final CreationalContext creationalContext) {
    final InjectionPoint injectionPoint = Container.instance().services().get(CurrentInjectionPoint.class).peek();
    final Set<Annotation> qualifiers = injectionPoint.getQualifiers();
    
//    final ParameterizedType injectionPointType = (ParameterizedType) injectionPoint.getType();
//    final Type innerType = injectionPointType.getActualTypeArguments()[0];
//    Class senderType = null;
//

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   public void wireCrossContainerServices(@Observes AfterBeanDiscovery event, final BeanManager manager)
   {
      // needs to happen in the addon that is requesting the service
      for (final Entry<InjectionPoint, Class<?>> entry : requestedServices.entrySet())
      {
         final InjectionPoint injectionPoint = entry.getKey();
         final Annotated annotated = injectionPoint.getAnnotated();
         final Member member = injectionPoint.getMember();


         Set<Type> typeClosure = annotated.getTypeClosure();
         Class<?> beanClass = entry.getValue();


         Bean<?> serviceBean = new BeanBuilder<Object>(manager)

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