@Override public boolean isAutowireCandidate(String beanName, DependencyDescriptor descriptor) throws NoSuchBeanDefinitionException { return isAutowireCandidate(beanName, descriptor, getAutowireCandidateResolver()); }
private boolean isRequired(DependencyDescriptor descriptor) { return getAutowireCandidateResolver().isRequired(descriptor); }
@Override public void copyConfigurationFrom(ConfigurableBeanFactory otherFactory) { super.copyConfigurationFrom(otherFactory); if (otherFactory instanceof DefaultListableBeanFactory) { DefaultListableBeanFactory otherListableFactory = (DefaultListableBeanFactory) otherFactory; this.allowBeanDefinitionOverriding = otherListableFactory.allowBeanDefinitionOverriding; this.allowEagerClassLoading = otherListableFactory.allowEagerClassLoading; this.dependencyComparator = otherListableFactory.dependencyComparator; // A clone of the AutowireCandidateResolver since it is potentially BeanFactoryAware... setAutowireCandidateResolver(BeanUtils.instantiateClass(getAutowireCandidateResolver().getClass())); // Make resolvable dependencies (e.g. ResourceLoader) available here as well... this.resolvableDependencies.putAll(otherListableFactory.resolvableDependencies); } }
@Override public boolean isAutowireCandidate(String beanName, DependencyDescriptor descriptor) throws NoSuchBeanDefinitionException { return isAutowireCandidate(beanName, descriptor, getAutowireCandidateResolver()); }
private boolean isRequired(DependencyDescriptor descriptor) { return getAutowireCandidateResolver().isRequired(descriptor); }
if (!(dlbf.getAutowireCandidateResolver() instanceof QualifierAnnotationAutowireCandidateResolver)) { dlbf.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver()); (QualifierAnnotationAutowireCandidateResolver) dlbf.getAutowireCandidateResolver(); for (Object value : this.customQualifierTypes) { Class<? extends Annotation> customType = null;
@Override public void copyConfigurationFrom(ConfigurableBeanFactory otherFactory) { super.copyConfigurationFrom(otherFactory); if (otherFactory instanceof DefaultListableBeanFactory) { DefaultListableBeanFactory otherListableFactory = (DefaultListableBeanFactory) otherFactory; this.allowBeanDefinitionOverriding = otherListableFactory.allowBeanDefinitionOverriding; this.allowEagerClassLoading = otherListableFactory.allowEagerClassLoading; this.dependencyComparator = otherListableFactory.dependencyComparator; // A clone of the AutowireCandidateResolver since it is potentially BeanFactoryAware... setAutowireCandidateResolver(BeanUtils.instantiateClass(getAutowireCandidateResolver().getClass())); // Make resolvable dependencies (e.g. ResourceLoader) available here as well... this.resolvableDependencies.putAll(otherListableFactory.resolvableDependencies); } }
if (!(dlbf.getAutowireCandidateResolver() instanceof QualifierAnnotationAutowireCandidateResolver)) { dlbf.setAutowireCandidateResolver(new QualifierAnnotationAutowireCandidateResolver()); (QualifierAnnotationAutowireCandidateResolver) dlbf.getAutowireCandidateResolver(); for (Object value : this.customQualifierTypes) { Class<? extends Annotation> customType = null;
beanFactory.setDependencyComparator(AnnotationAwareOrderComparator.INSTANCE); if (!(beanFactory.getAutowireCandidateResolver() instanceof ContextAnnotationAutowireCandidateResolver)) { beanFactory.setAutowireCandidateResolver(new ContextAnnotationAutowireCandidateResolver());
/** * Raise a BeanNotOfRequiredTypeException for an unresolvable dependency, if applicable, * i.e. if the target type of the bean would match but an exposed proxy doesn't. */ private void checkBeanNotOfRequiredType(Class<?> type, DependencyDescriptor descriptor) { for (String beanName : this.beanDefinitionNames) { RootBeanDefinition mbd = getMergedLocalBeanDefinition(beanName); Class<?> targetType = mbd.getTargetType(); if (targetType != null && type.isAssignableFrom(targetType) && isAutowireCandidate(beanName, mbd, descriptor, getAutowireCandidateResolver())) { // Probably a proxy interfering with target type match -> throw meaningful exception. Object beanInstance = getSingleton(beanName, false); Class<?> beanType = (beanInstance != null && beanInstance.getClass() != NullBean.class ? beanInstance.getClass() : predictBeanType(beanName, mbd)); if (beanType != null && !type.isAssignableFrom(beanType)) { throw new BeanNotOfRequiredTypeException(beanName, type, beanType); } } } BeanFactory parent = getParentBeanFactory(); if (parent instanceof DefaultListableBeanFactory) { ((DefaultListableBeanFactory) parent).checkBeanNotOfRequiredType(type, descriptor); } }
@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; } }
for (String candidate : candidateNames) { if (!isSelfReference(beanName, candidate) && isAutowireCandidate(candidate, fallbackDescriptor) && (!multiple || getAutowireCandidateResolver().hasQualifier(descriptor))) { addCandidateEntry(result, candidate, descriptor, requiredType);
beanFactory.setDependencyComparator(AnnotationAwareOrderComparator.INSTANCE); if (!(beanFactory.getAutowireCandidateResolver() instanceof ContextAnnotationAutowireCandidateResolver)) { beanFactory.setAutowireCandidateResolver(new ContextAnnotationAutowireCandidateResolver());
/** * Raise a BeanNotOfRequiredTypeException for an unresolvable dependency, if applicable, * i.e. if the target type of the bean would match but an exposed proxy doesn't. */ private void checkBeanNotOfRequiredType(Class<?> type, DependencyDescriptor descriptor) { for (String beanName : this.beanDefinitionNames) { RootBeanDefinition mbd = getMergedLocalBeanDefinition(beanName); Class<?> targetType = mbd.getTargetType(); if (targetType != null && type.isAssignableFrom(targetType) && isAutowireCandidate(beanName, mbd, descriptor, getAutowireCandidateResolver())) { // Probably a proxy interfering with target type match -> throw meaningful exception. Object beanInstance = getSingleton(beanName, false); Class<?> beanType = (beanInstance != null && beanInstance.getClass() != NullBean.class ? beanInstance.getClass() : predictBeanType(beanName, mbd)); if (beanType != null && !type.isAssignableFrom(beanType)) { throw new BeanNotOfRequiredTypeException(beanName, type, beanType); } } } BeanFactory parent = getParentBeanFactory(); if (parent instanceof DefaultListableBeanFactory) { ((DefaultListableBeanFactory) parent).checkBeanNotOfRequiredType(type, descriptor); } }
Object value = getAutowireCandidateResolver().getSuggestedValue(descriptor); if (value != null) { if (value instanceof String) {
@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; } }
for (String candidate : candidateNames) { if (!isSelfReference(beanName, candidate) && isAutowireCandidate(candidate, fallbackDescriptor) && (!multiple || getAutowireCandidateResolver().hasQualifier(descriptor))) { addCandidateEntry(result, candidate, descriptor, requiredType);
Object value = getAutowireCandidateResolver().getSuggestedValue(descriptor); if (value != null) { if (value instanceof String) {
@Test public void testQualifiedByAttributesWithCustomQualifierRegistered() { StaticApplicationContext context = new StaticApplicationContext(); BeanDefinitionReader reader = new XmlBeanDefinitionReader(context); reader.loadBeanDefinitions(CONFIG_LOCATION); QualifierAnnotationAutowireCandidateResolver resolver = (QualifierAnnotationAutowireCandidateResolver) context.getDefaultListableBeanFactory().getAutowireCandidateResolver(); resolver.addQualifierType(MultipleAttributeQualifier.class); context.registerSingleton("testBean", MultiQualifierClient.class); context.refresh(); MultiQualifierClient testBean = (MultiQualifierClient) context.getBean("testBean"); assertNotNull( testBean.factoryTheta); assertNotNull( testBean.implTheta); }
/** * 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 * @return whether the bean should be considered as autowire candidate */ protected boolean isAutowireCandidate(String beanName, RootBeanDefinition mbd, DependencyDescriptor descriptor) { resolveBeanClass(mbd, beanName); if (mbd.isFactoryMethodUnique) { boolean resolve; synchronized (mbd.constructorArgumentLock) { resolve = (mbd.resolvedConstructorOrFactoryMethod == null); } if (resolve) { new ConstructorResolver(this).resolveFactoryMethodIfPossible(mbd); } } return getAutowireCandidateResolver().isAutowireCandidate( new BeanDefinitionHolder(mbd, beanName, getAliases(beanName)), descriptor); }