Examples of javax.enterprise.inject.spi.BeanManager

javax.enterprise.inject.spi.BeanManager
Allows a portable extension to interact directly with the container. Provides operations for obtaining contextual references for beans, along with many other operations of use to portable extensions.

Any bean may obtain an instance of BeanManager by injecting it:
```
 @Inject BeanManager manager; 
```
Java EE components may obtain an instance of BeanManager from {@linkplain javax.naming JNDI} by looking up the name{@code java:comp/BeanManager}.

Any operation of BeanManager may be called at any time during the execution of the application.
@author Gavin King @author Pete Muir @author Clint Popetz @author David Allen


   protected void injectClass(Object testCase)
   {
      try
      {
         BeanManager beanManager = getBeanManager();
         if (beanManager != null)
         {
            injectNonContextualInstance(beanManager, testCase);
         }
         else

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    public void testResolve()
    {
        Collection<Class<?>> classes = new ArrayList<Class<?>>();
        startContainer(classes);


        BeanManager bm = getInstance(BeanManager.class);
        Assert.assertNotNull(bm);


        // this must not throw a NPE
        Assert.assertNull(bm.resolve(null));


        Assert.assertNull(bm.resolve(Collections.EMPTY_SET));


        shutDownContainer();
    }

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    /**
     * Fires event before bean discovery.
     */
    private void fireBeforeBeanDiscoveryEvent()
    {
        BeanManager manager = webBeansContext.getBeanManagerImpl();
        manager.fireEvent(new BeforeBeanDiscoveryImpl(webBeansContext));
    }

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        synchronized(instance)
        {
            List<Object> decoratorStack = new ArrayList<Object>();
            List<Decorator<?>> decoratorList = component.getDecoratorStack();
            Iterator<Decorator<?>> itList = decoratorList.iterator();
            BeanManager manager = component.getWebBeansContext().getBeanManagerImpl();
            while (itList.hasNext())
            {
                Object decoratorInstance ;
                WebBeansDecorator<Object> decorator = (WebBeansDecorator<Object>) itList.next();
                decoratorInstance = ownerCreationalContext.getDependentDecorator(instance, decorator);
                if(decoratorInstance == null)
                {
                    decoratorInstance = manager.getReference(decorator, decorator.getBeanClass(), ownerCreationalContext);


                    decorator.setInjections(decoratorInstance, ownerCreationalContext);
                    decorator.setDelegate(decoratorInstance, delegate);


                    ownerCreationalContext.addDependent(instance, decorator, decoratorInstance);

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    {
        try
        {
            deploy(deploymentClasses);
            
            BeanManager manager = WebBeansContext.getInstance().getBeanManagerImpl();
            Set<Bean<?>> beans = manager.getBeans(Car.class, new Annotation[0]);
            Bean<?> carBean = beans.iterator().next();
            
            Car car = (Car)manager.getReference(carBean , Car.class , manager.createCreationalContext(carBean));
            
            return Tck.testsFor(car, false, true);
            
        } catch(DeploymentException e)
        {

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        classes.add(PersonalDataBean.class);
        classes.add(CircularDependentScopedBean.class);
        classes.add(CircularApplicationScopedBean.class);
        startContainer(classes);


        BeanManager bm = getBeanManager();
        Set<Bean<?>> beans = getBeanManager().getBeans(PersonalDataBean.class);
        Assert.assertNotNull(beans);
        Assert.assertTrue(beans.size() == 1);
        Bean pdbBean = beans.iterator().next();
        CreationalContext<PersonalDataBean> pdbCreational = bm.createCreationalContext(pdbBean);
        Assert.assertNotNull(pdbCreational);


        // oki, now let's serializeBean the CreationalContext
        byte[] serial = serializeObject(pdbCreational);
        CreationalContext<?> cc2 = (CreationalContext<?>) deSerializeObject(serial);

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     * @return conversation instance
     */
    @SuppressWarnings("unchecked")
    public Conversation getConversationBeanReference()
    {
        BeanManager beanManager = webBeansContext.getBeanManagerImpl();
        Bean<Conversation> bean = (Bean<Conversation>)beanManager.getBeans(Conversation.class, new DefaultLiteral()).iterator().next();
        Conversation conversation =(Conversation) beanManager.getReference(bean, Conversation.class, beanManager.createCreationalContext(bean));


        return conversation;
    }

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   @Override
   @SuppressWarnings({ "unchecked" })
   public <T, K, V> void onPreExecute(Callable<T> task, Cache<K, V> inputCache) {
      BeanManager bm = InfinispanExtension.getBeanManagerController().getRegisteredBeanManager();
      ContextInputCache.set(inputCache);
      Class<Callable<T>> clazz = (Class<Callable<T>>) task.getClass();
      AnnotatedType<Callable<T>> type = bm.createAnnotatedType(clazz);
      InjectionTarget<Callable<T>> it = bm.createInjectionTarget(type);
      CreationalContext<Callable<T>> ctx = bm.createCreationalContext(null);
      it.inject(task, ctx);
      it.postConstruct(task);    
   }

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   @Override
   @SuppressWarnings({ "unchecked" })
   public <T> void onPostExecute(Callable<T> task) {
      try {
         BeanManager bm = InfinispanExtension.getBeanManagerController().getRegisteredBeanManager();
         Class<Callable<T>> clazz = (Class<Callable<T>>) task.getClass();
         AnnotatedType<Callable<T>> type = bm.createAnnotatedType(clazz);
         InjectionTarget<Callable<T>> it = bm.createInjectionTarget(type);
         it.preDestroy(task);
         it.dispose(task);
      } finally {
         ContextInputCache.clean();
      }

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   private Map<ClassLoader, BeanManager> beanManagers = new ConcurrentHashMap<ClassLoader, BeanManager>();


   public BeanManager getRegisteredBeanManager() {
      ClassLoader classLoader = getClassLoader(null);
      
      BeanManager bm = resolveBeanManager(classLoader);


      if (bm == null) {
         bm = getBeanManager();


         if (bm == null) {

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