org.springframework.beans.factory.BeanNotOfRequiredTypeException#org.springframework.beans.factory.config.DependencyDescriptor源码实例Demo

@Override
protected Map<String, Object> findAutowireCandidates(String beanName, Class<?> requiredType,
                                                     DependencyDescriptor descriptor) {

    if (!requiredType.equals(Provider.class)) {
        return super.findAutowireCandidates(beanName, requiredType, descriptor);
    }

    DependencyDescriptor providedDescriptor = new DependencyDescriptor(descriptor);
    providedDescriptor.increaseNestingLevel();
    Class<?> type = providedDescriptor.getDependencyType();
    Set<String> candidates = findAutowireCandidates(beanName, type, providedDescriptor).keySet();
    return candidates.stream()
            .collect(toMap(Function.identity(), name -> new DependencyProvider(this, descriptor, name)));

}
 

@Override
public Object resolveDependency(DependencyDescriptor descriptor, String beanName,
		Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException {

	descriptor.initParameterNameDiscovery(getParameterNameDiscoverer());
	if (descriptor.getDependencyType().equals(ObjectFactory.class)) {
		return new DependencyObjectFactory(descriptor, beanName);
	}
	else if (descriptor.getDependencyType().equals(javaxInjectProviderClass)) {
		return new DependencyProviderFactory().createDependencyProvider(descriptor, beanName);
	}
	else {
		Object result = getAutowireCandidateResolver().getLazyResolutionProxyIfNecessary(descriptor, beanName);
		if (result == null) {
			result = doResolveDependency(descriptor, beanName, autowiredBeanNames, typeConverter);
		}
		return result;
	}
}
 

/**
 * Determine whether the provided bean definition is an autowire candidate.
 * <p>To be considered a candidate the bean's <em>autowire-candidate</em>
 * attribute must not have been set to 'false'. Also, if an annotation on
 * the field or parameter to be autowired is recognized by this bean factory
 * as a <em>qualifier</em>, the bean must 'match' against the annotation as
 * well as any attributes it may contain. The bean definition must contain
 * the same qualifier or match by meta attributes. A "value" attribute will
 * fallback to match against the bean name or an alias if a qualifier or
 * attribute does not match.
 * @see Qualifier
 */
@Override
public boolean isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) {
	boolean match = super.isAutowireCandidate(bdHolder, descriptor);
	if (match) {
		match = checkQualifiers(bdHolder, descriptor.getAnnotations());
		if (match) {
			MethodParameter methodParam = descriptor.getMethodParameter();
			if (methodParam != null) {
				Method method = methodParam.getMethod();
				if (method == null || void.class == method.getReturnType()) {
					match = checkQualifiers(bdHolder, methodParam.getMethodAnnotations());
				}
			}
		}
	}
	return match;
}
 

@Ignore
@Test
public void testAutowireCandidateWithFieldDescriptor() throws Exception {
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
	lbf.registerBeanDefinition(JUERGEN, person1);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	lbf.registerBeanDefinition(MARK, person2);
	DependencyDescriptor qualifiedDescriptor = new DependencyDescriptor(
			QualifiedTestBean.class.getDeclaredField("qualified"), false);
	DependencyDescriptor nonqualifiedDescriptor = new DependencyDescriptor(
			QualifiedTestBean.class.getDeclaredField("nonqualified"), false);
	assertTrue(lbf.isAutowireCandidate(JUERGEN, null));
	assertTrue(lbf.isAutowireCandidate(JUERGEN, nonqualifiedDescriptor));
	assertTrue(lbf.isAutowireCandidate(JUERGEN, qualifiedDescriptor));
	assertTrue(lbf.isAutowireCandidate(MARK, null));
	assertTrue(lbf.isAutowireCandidate(MARK, nonqualifiedDescriptor));
	assertFalse(lbf.isAutowireCandidate(MARK, qualifiedDescriptor));
}
 

@Override
public Object resolveDependency(DependencyDescriptor descriptor, String beanName,
		Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException {

	descriptor.initParameterNameDiscovery(getParameterNameDiscoverer());
	if (descriptor.getDependencyType().equals(javaUtilOptionalClass)) {
		return new OptionalDependencyFactory().createOptionalDependency(descriptor, beanName);
	}
	else if (ObjectFactory.class == descriptor.getDependencyType()) {
		return new DependencyObjectFactory(descriptor, beanName);
	}
	else if (javaxInjectProviderClass == descriptor.getDependencyType()) {
		return new DependencyProviderFactory().createDependencyProvider(descriptor, beanName);
	}
	else {
		Object result = getAutowireCandidateResolver().getLazyResolutionProxyIfNecessary(descriptor, beanName);
		if (result == null) {
			result = doResolveDependency(descriptor, beanName, autowiredBeanNames, typeConverter);
		}
		return result;
	}
}
 

/**
 * Determine the autowire candidate in the given set of beans.
 * <p>Looks for {@code @Primary} and {@code @Priority} (in that order).
 * @param candidateBeans a Map of candidate names and candidate instances
 * that match the required type, as returned by {@link #findAutowireCandidates}
 * @param descriptor the target dependency to match against
 * @return the name of the autowire candidate, or {@code null} if none found
 */
protected String determineAutowireCandidate(Map<String, Object> candidateBeans, DependencyDescriptor descriptor) {
	Class<?> requiredType = descriptor.getDependencyType();
	String primaryCandidate = determinePrimaryCandidate(candidateBeans, requiredType);
	if (primaryCandidate != null) {
		return primaryCandidate;
	}
	String priorityCandidate = determineHighestPriorityCandidate(candidateBeans, requiredType);
	if (priorityCandidate != null) {
		return priorityCandidate;
	}
	// Fallback
	for (Map.Entry<String, Object> entry : candidateBeans.entrySet()) {
		String candidateBeanName = entry.getKey();
		Object beanInstance = entry.getValue();
		if ((beanInstance != null && this.resolvableDependencies.containsValue(beanInstance)) ||
				matchesBeanName(candidateBeanName, descriptor.getDependencyName())) {
			return candidateBeanName;
		}
	}
	return null;
}
 

/**
 * Determine the autowire candidate in the given set of beans.
 * <p>Looks for {@code @Primary} and {@code @Priority} (in that order).
 * @param candidates a Map of candidate names and candidate instances
 * that match the required type, as returned by {@link #findAutowireCandidates}
 * @param descriptor the target dependency to match against
 * @return the name of the autowire candidate, or {@code null} if none found
 */
@Nullable
protected String determineAutowireCandidate(Map<String, Object> candidates, DependencyDescriptor descriptor) {
	Class<?> requiredType = descriptor.getDependencyType();
	String primaryCandidate = determinePrimaryCandidate(candidates, requiredType);
	if (primaryCandidate != null) {
		return primaryCandidate;
	}
	String priorityCandidate = determineHighestPriorityCandidate(candidates, requiredType);
	if (priorityCandidate != null) {
		return priorityCandidate;
	}
	// Fallback
	for (Map.Entry<String, Object> entry : candidates.entrySet()) {
		String candidateName = entry.getKey();
		Object beanInstance = entry.getValue();
		if ((beanInstance != null && this.resolvableDependencies.containsValue(beanInstance)) ||
				matchesBeanName(candidateName, descriptor.getDependencyName())) {
			return candidateName;
		}
	}
	return null;
}
 

@Override
public Object getIfUnique() throws BeansException {
	DependencyDescriptor descriptorToUse = new DependencyDescriptor(descriptor) {
		@Override
		public boolean isRequired() {
			return false;
		}
		@Override
		public Object resolveNotUnique(Class<?> type, Map<String, Object> matchingBeans) {
			return null;
		}
	};
	if (this.optional) {
		return new OptionalDependencyFactory().createOptionalDependency(descriptorToUse, this.beanName);
	}
	else {
		return doResolveDependency(descriptorToUse, this.beanName, null, null);
	}
}
 

@Override
@Nullable
public Object getIfUnique() throws BeansException {
	DependencyDescriptor descriptorToUse = new DependencyDescriptor(this.descriptor) {
		@Override
		public boolean isRequired() {
			return false;
		}
		@Override
		@Nullable
		public Object resolveNotUnique(ResolvableType type, Map<String, Object> matchingBeans) {
			return null;
		}
	};
	if (this.optional) {
		return createOptionalDependency(descriptorToUse, this.beanName);
	}
	else {
		return doResolveDependency(descriptorToUse, this.beanName, null, null);
	}
}
 

@Override
@Nullable
public Object getIfUnique() throws BeansException {
	DependencyDescriptor descriptorToUse = new DependencyDescriptor(this.descriptor) {
		@Override
		public boolean isRequired() {
			return false;
		}
		@Override
		@Nullable
		public Object resolveNotUnique(ResolvableType type, Map<String, Object> matchingBeans) {
			return null;
		}
	};
	if (this.optional) {
		return createOptionalDependency(descriptorToUse, this.beanName);
	}
	else {
		return doResolveDependency(descriptorToUse, this.beanName, null, null);
	}
}
 

@Override
@Nullable
public Object resolveDependency(DependencyDescriptor descriptor, @Nullable String requestingBeanName,
		@Nullable Set<String> autowiredBeanNames, @Nullable TypeConverter typeConverter) throws BeansException {

	descriptor.initParameterNameDiscovery(getParameterNameDiscoverer());
	if (Optional.class == descriptor.getDependencyType()) {
		return createOptionalDependency(descriptor, requestingBeanName);
	}
	else if (ObjectFactory.class == descriptor.getDependencyType() ||
			ObjectProvider.class == descriptor.getDependencyType()) {
		return new DependencyObjectProvider(descriptor, requestingBeanName);
	}
	else if (javaxInjectProviderClass == descriptor.getDependencyType()) {
		return new Jsr330Factory().createDependencyProvider(descriptor, requestingBeanName);
	}
	else {
		Object result = getAutowireCandidateResolver().getLazyResolutionProxyIfNecessary(
				descriptor, requestingBeanName);
		if (result == null) {
			result = doResolveDependency(descriptor, requestingBeanName, autowiredBeanNames, typeConverter);
		}
		return result;
	}
}
 

@Test
public void resolveDependencyForAnnotatedParametersInTopLevelClassConstructor() throws Exception {
	Constructor<?> constructor = AutowirableClass.class.getConstructor(String.class, String.class, String.class, String.class);

	AutowireCapableBeanFactory beanFactory = mock(AutowireCapableBeanFactory.class);
	// Configure the mocked BeanFactory to return the DependencyDescriptor for convenience and
	// to avoid using an ArgumentCaptor.
	given(beanFactory.resolveDependency(any(), isNull())).willAnswer(invocation -> invocation.getArgument(0));

	Parameter[] parameters = constructor.getParameters();
	for (int parameterIndex = 0; parameterIndex < parameters.length; parameterIndex++) {
		Parameter parameter = parameters[parameterIndex];
		DependencyDescriptor intermediateDependencyDescriptor = (DependencyDescriptor) ParameterResolutionDelegate.resolveDependency(
				parameter, parameterIndex, AutowirableClass.class, beanFactory);
		assertEquals(constructor, intermediateDependencyDescriptor.getAnnotatedElement());
		assertEquals(parameter, intermediateDependencyDescriptor.getMethodParameter().getParameter());
	}
}
 

@Ignore
@Test
public void testAutowireCandidateWithFieldDescriptor() throws Exception {
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	ConstructorArgumentValues cavs1 = new ConstructorArgumentValues();
	cavs1.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition person1 = new RootBeanDefinition(Person.class, cavs1, null);
	person1.addQualifier(new AutowireCandidateQualifier(TestQualifier.class));
	lbf.registerBeanDefinition(JUERGEN, person1);
	ConstructorArgumentValues cavs2 = new ConstructorArgumentValues();
	cavs2.addGenericArgumentValue(MARK);
	RootBeanDefinition person2 = new RootBeanDefinition(Person.class, cavs2, null);
	lbf.registerBeanDefinition(MARK, person2);
	DependencyDescriptor qualifiedDescriptor = new DependencyDescriptor(
			QualifiedTestBean.class.getDeclaredField("qualified"), false);
	DependencyDescriptor nonqualifiedDescriptor = new DependencyDescriptor(
			QualifiedTestBean.class.getDeclaredField("nonqualified"), false);
	assertTrue(lbf.isAutowireCandidate(JUERGEN, null));
	assertTrue(lbf.isAutowireCandidate(JUERGEN, nonqualifiedDescriptor));
	assertTrue(lbf.isAutowireCandidate(JUERGEN, qualifiedDescriptor));
	assertTrue(lbf.isAutowireCandidate(MARK, null));
	assertTrue(lbf.isAutowireCandidate(MARK, nonqualifiedDescriptor));
	assertFalse(lbf.isAutowireCandidate(MARK, qualifiedDescriptor));
}
 

/**
 * Determine the autowire candidate in the given set of beans.
 * <p>Looks for {@code @Primary} and {@code @Priority} (in that order).
 * @param candidates a Map of candidate names and candidate instances
 * that match the required type, as returned by {@link #findAutowireCandidates}
 * @param descriptor the target dependency to match against
 * @return the name of the autowire candidate, or {@code null} if none found
 */
protected String determineAutowireCandidate(Map<String, Object> candidates, DependencyDescriptor descriptor) {
	Class<?> requiredType = descriptor.getDependencyType();
	String primaryCandidate = determinePrimaryCandidate(candidates, requiredType);
	if (primaryCandidate != null) {
		return primaryCandidate;
	}
	String priorityCandidate = determineHighestPriorityCandidate(candidates, requiredType);
	if (priorityCandidate != null) {
		return priorityCandidate;
	}
	// Fallback
	for (Map.Entry<String, Object> entry : candidates.entrySet()) {
		String candidateName = entry.getKey();
		Object beanInstance = entry.getValue();
		if ((beanInstance != null && this.resolvableDependencies.containsValue(beanInstance)) ||
				matchesBeanName(candidateName, descriptor.getDependencyName())) {
			return candidateName;
		}
	}
	return null;
}
 

@Override
   public boolean isAutowireCandidate(String beanName, DependencyDescriptor descriptor)
		throws NoSuchBeanDefinitionException {

	// Consider FactoryBeans as autowiring candidates.
	boolean isFactoryBean = (descriptor != null && descriptor.getDependencyType() != null &&
			FactoryBean.class.isAssignableFrom(descriptor.getDependencyType()));
	if (isFactoryBean) {
		beanName = BeanFactoryUtils.transformedBeanName(beanName);
	}

	if (containsBeanDefinition(beanName)) {
		return isAutowireCandidate(beanName, getMergedLocalBeanDefinition(beanName), descriptor);
	}
	else if (containsSingleton(beanName)) {
		return isAutowireCandidate(beanName, new RootBeanDefinition(getType(beanName)), descriptor);
	}
	else if (getParentBeanFactory() instanceof ConfigurableListableBeanFactory) {
		// No bean definition found in this factory -> delegate to parent.
		return ((ConfigurableListableBeanFactory) getParentBeanFactory()).isAutowireCandidate(beanName, descriptor);
	}
	else {
		return true;
	}
}
 

@Override
public Object resolveDependency(DependencyDescriptor descriptor, String beanName, Set<String> autowiredBeanNames,
                                TypeConverter typeConverter) throws BeansException {
    Field field = descriptor.getField();

    if (field != null && Logger.class == descriptor.getDependencyType()) {
        return LoggerFactory.getLogger(getDeclaringClass(descriptor));
    }

    if (field != null && Config.class.isAssignableFrom(field.getType())) {
        return getConfig(field.getType());
    }
    MethodParameter methodParam = descriptor.getMethodParameter();
    if (methodParam != null && Config.class.isAssignableFrom(methodParam.getParameterType())) {
        return getConfig(methodParam.getParameterType());
    }
    return super.resolveDependency(descriptor, beanName, autowiredBeanNames, typeConverter);
}
 

/**
 * Determine whether the specified bean definition qualifies as an autowire candidate,
 * to be injected into other beans which declare a dependency of matching type.
 * @param beanName the name of the bean definition to check
 * @param descriptor the descriptor of the dependency to resolve
 * @param resolver the AutowireCandidateResolver to use for the actual resolution algorithm
 * @return whether the bean should be considered as autowire candidate
 */
protected boolean isAutowireCandidate(String beanName, DependencyDescriptor descriptor, AutowireCandidateResolver resolver)
		throws NoSuchBeanDefinitionException {

	String beanDefinitionName = BeanFactoryUtils.transformedBeanName(beanName);
	if (containsBeanDefinition(beanDefinitionName)) {
		return isAutowireCandidate(beanName, getMergedLocalBeanDefinition(beanDefinitionName), descriptor, resolver);
	}
	else if (containsSingleton(beanName)) {
		return isAutowireCandidate(beanName, new RootBeanDefinition(getType(beanName)), descriptor, resolver);
	}

	BeanFactory parent = getParentBeanFactory();
	if (parent instanceof DefaultListableBeanFactory) {
		// No bean definition found in this factory -> delegate to parent.
		return ((DefaultListableBeanFactory) parent).isAutowireCandidate(beanName, descriptor, resolver);
	}
	else if (parent instanceof ConfigurableListableBeanFactory) {
		// If no DefaultListableBeanFactory, can't pass the resolver along.
		return ((ConfigurableListableBeanFactory) parent).isAutowireCandidate(beanName, descriptor);
	}
	else {
		return true;
	}
}
 

/**
 * Determine whether the specified bean definition qualifies as an autowire candidate,
 * to be injected into other beans which declare a dependency of matching type.
 * @param beanName the name of the bean definition to check
 * @param mbd the merged bean definition to check
 * @param descriptor the descriptor of the dependency to resolve
 * @param resolver the AutowireCandidateResolver to use for the actual resolution algorithm
 * @return whether the bean should be considered as autowire candidate
 */
protected boolean isAutowireCandidate(String beanName, RootBeanDefinition mbd,
		DependencyDescriptor descriptor, AutowireCandidateResolver resolver) {

	String beanDefinitionName = BeanFactoryUtils.transformedBeanName(beanName);
	resolveBeanClass(mbd, beanDefinitionName);
	if (mbd.isFactoryMethodUnique) {
		boolean resolve;
		synchronized (mbd.constructorArgumentLock) {
			resolve = (mbd.resolvedConstructorOrFactoryMethod == null);
		}
		if (resolve) {
			new ConstructorResolver(this).resolveFactoryMethodIfPossible(mbd);
		}
	}
	return resolver.isAutowireCandidate(
			new BeanDefinitionHolder(mbd, beanName, getAliases(beanDefinitionName)), descriptor);
}
 

/**
 * Build a DependencyDescriptor for the underlying field/method.
 */
public final DependencyDescriptor getDependencyDescriptor() {
	if (this.isField) {
		return new LookupDependencyDescriptor((Field) this.member, this.lookupType);
	}
	else {
		return new LookupDependencyDescriptor((Method) this.member, this.lookupType);
	}
}
 

/**
 * Resolve the specified cached method argument or field value.
 */
@Nullable
private Object resolvedCachedArgument(@Nullable String beanName, @Nullable Object cachedArgument) {
	if (cachedArgument instanceof DependencyDescriptor) {
		DependencyDescriptor descriptor = (DependencyDescriptor) cachedArgument;
		Assert.state(this.beanFactory != null, "No BeanFactory available");
		return this.beanFactory.resolveDependency(descriptor, beanName, null, null);
	}
	else {
		return cachedArgument;
	}
}
 

/**
 * Determine whether the given dependency declares an autowired annotation,
 * checking its required flag.
 * @see Autowired#required()
 */
@Override
public boolean isRequired(DependencyDescriptor descriptor) {
	if (!super.isRequired(descriptor)) {
		return false;
	}
	Autowired autowired = descriptor.getAnnotation(Autowired.class);
	return (autowired == null || autowired.required());
}
 

@Test
public void testAutowireCandidateExplicitlyFalseWithIrrelevantDescriptor() throws Exception {
	DefaultListableBeanFactory lbf = new DefaultListableBeanFactory();
	ConstructorArgumentValues cavs = new ConstructorArgumentValues();
	cavs.addGenericArgumentValue(JUERGEN);
	RootBeanDefinition rbd = new RootBeanDefinition(Person.class, cavs, null);
	rbd.setAutowireCandidate(false);
	lbf.registerBeanDefinition(JUERGEN, rbd);
	assertFalse(lbf.isAutowireCandidate(JUERGEN, null));
	assertFalse(lbf.isAutowireCandidate(JUERGEN,
			new DependencyDescriptor(Person.class.getDeclaredField("name"), false)));
	assertFalse(lbf.isAutowireCandidate(JUERGEN,
			new DependencyDescriptor(Person.class.getDeclaredField("name"), true)));
}
 

public static Object resolveDependency(Parameter parameter, Class<?> containingClass, ApplicationContext applicationContext) {

        boolean required = findMergedAnnotation(parameter, Autowired.class).map(Autowired::required)
            .orElse(true);
        MethodParameter methodParameter = (parameter.getDeclaringExecutable() instanceof Method ? MethodParameterFactory.createSynthesizingMethodParameter(parameter) : MethodParameterFactory.createMethodParameter(parameter));
        DependencyDescriptor descriptor = new DependencyDescriptor(methodParameter, required);
        descriptor.setContainingClass(containingClass);

        return applicationContext.getAutowireCapableBeanFactory()
            .resolveDependency(descriptor, null);
    }
 

/**
 * Resolve the specified cached method argument or field value.
 */
private Object resolvedCachedArgument(String beanName, Object cachedArgument) {
	if (cachedArgument instanceof DependencyDescriptor) {
		DependencyDescriptor descriptor = (DependencyDescriptor) cachedArgument;
		return this.beanFactory.resolveDependency(descriptor, beanName, null, null);
	}
	else {
		return cachedArgument;
	}
}
 

/**
 * Raise a NoSuchBeanDefinitionException for an unresolvable dependency.
 */
private void raiseNoSuchBeanDefinitionException(
		Class<?> type, String dependencyDescription, DependencyDescriptor descriptor)
		throws NoSuchBeanDefinitionException {

	throw new NoSuchBeanDefinitionException(type, dependencyDescription,
			"expected at least 1 bean which qualifies as autowire candidate for this dependency. " +
			"Dependency annotations: " + ObjectUtils.nullSafeToString(descriptor.getAnnotations()));
}
 

@Override
public Object resolveBeanByName(String name, DependencyDescriptor descriptor) {
	InjectionPoint previousInjectionPoint = ConstructorResolver.setCurrentInjectionPoint(descriptor);
	try {
		return getBean(name, descriptor.getDependencyType());
	}
	finally {
		ConstructorResolver.setCurrentInjectionPoint(previousInjectionPoint);
	}
}
 

/**
 * Determine whether the given dependency declares an autowired annotation,
 * checking its required flag.
 * @see Autowired#required()
 */
@Override
public boolean isRequired(DependencyDescriptor descriptor) {
	if (!super.isRequired(descriptor)) {
		return false;
	}
	Autowired autowired = descriptor.getAnnotation(Autowired.class);
	return (autowired == null || autowired.required());
}
 

@Override
public boolean isAutowireCandidate(BeanDefinitionHolder bdHolder, DependencyDescriptor descriptor) {
	if (!super.isAutowireCandidate(bdHolder, descriptor)) {
		// If explicitly false, do not proceed with any other checks...
		return false;
	}
	return checkGenericTypeMatch(bdHolder, descriptor);
}
 

/**
 * Raise a NoSuchBeanDefinitionException or BeanNotOfRequiredTypeException
 * for an unresolvable dependency.
 */
private void raiseNoMatchingBeanFound(
		Class<?> type, ResolvableType resolvableType, DependencyDescriptor descriptor) throws BeansException {

	checkBeanNotOfRequiredType(type, descriptor);

	throw new NoSuchBeanDefinitionException(resolvableType,
			"expected at least 1 bean which qualifies as autowire candidate. " +
			"Dependency annotations: " + ObjectUtils.nullSafeToString(descriptor.getAnnotations()));
}
 

@Override
   public Object resolveDependency(DependencyDescriptor descriptor, String beanName,
		Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException  {

	descriptor.initParameterNameDiscovery(getParameterNameDiscoverer());
	if (descriptor.getDependencyType().equals(ObjectFactory.class)) {
		return new DependencyObjectFactory(descriptor, beanName);
	}
	else if (descriptor.getDependencyType().equals(javaxInjectProviderClass)) {
		return new DependencyProviderFactory().createDependencyProvider(descriptor, beanName);
	}
	else {
		return doResolveDependency(descriptor, descriptor.getDependencyType(), beanName, autowiredBeanNames, typeConverter);
	}
}