提交 1ac8e1c9 编写于 作者: J Juergen Hoeller

Polishing

(cherry picked from commit a4a71a89)
上级 8b5d3559
......@@ -318,8 +318,8 @@ public interface AutowireCapableBeanFactory extends BeanFactory {
* @param requiredType type the bean must match; can be an interface or superclass.
* {@code null} is disallowed.
* @return the bean name plus bean instance
* @throws NoSuchBeanDefinitionException if no bean of the given type was found
* @throws NoUniqueBeanDefinitionException if more than one bean of the given type was found
* @throws NoSuchBeanDefinitionException if no matching bean was found
* @throws NoUniqueBeanDefinitionException if more than one matching bean was found
* @throws BeansException if the bean could not be created
* @since 4.3.3
* @see #getBean(Class)
......@@ -328,30 +328,30 @@ public interface AutowireCapableBeanFactory extends BeanFactory {
/**
* Resolve the specified dependency against the beans defined in this factory.
* @param descriptor the descriptor for the dependency
* @param requestingBeanName the name of the bean which declares the present dependency
* @param descriptor the descriptor for the dependency (field/method/constructor)
* @param requestingBeanName the name of the bean which declares the given dependency
* @return the resolved object, or {@code null} if none found
* @throws NoSuchBeanDefinitionException if no matching bean was found
* @throws NoUniqueBeanDefinitionException if more than one matching bean was found
* @throws BeansException if dependency resolution failed for any other reason
* @see #resolveDependency(DependencyDescriptor, String, Set, TypeConverter)
* @since 2.5
* @see #resolveDependency(DependencyDescriptor, String, Set, TypeConverter)
*/
Object resolveDependency(DependencyDescriptor descriptor, String requestingBeanName) throws BeansException;
/**
* Resolve the specified dependency against the beans defined in this factory.
* @param descriptor the descriptor for the dependency
* @param requestingBeanName the name of the bean which declares the present dependency
* @param autowiredBeanNames a Set that all names of autowired beans (used for resolving
* the present dependency) are supposed to be added to
* @param descriptor the descriptor for the dependency (field/method/constructor)
* @param requestingBeanName the name of the bean which declares the given dependency
* @param autowiredBeanNames a Set that all names of autowired beans (used for
* resolving the given dependency) are supposed to be added to
* @param typeConverter the TypeConverter to use for populating arrays and collections
* @return the resolved object, or {@code null} if none found
* @throws NoSuchBeanDefinitionException if no matching bean was found
* @throws NoUniqueBeanDefinitionException if more than one matching bean was found
* @throws BeansException if dependency resolution failed for any other reason
* @see DependencyDescriptor
* @since 2.5
* @see DependencyDescriptor
*/
Object resolveDependency(DependencyDescriptor descriptor, String requestingBeanName,
Set<String> autowiredBeanNames, TypeConverter typeConverter) throws BeansException;
......
......@@ -979,6 +979,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
private <T> NamedBeanHolder<T> resolveNamedBean(Class<T> requiredType, Object... args) throws BeansException {
Assert.notNull(requiredType, "Required type must not be null");
String[] beanNames = getBeanNamesForType(requiredType);
if (beanNames.length > 1) {
ArrayList<String> autowireCandidates = new ArrayList<>();
for (String beanName : beanNames) {
......@@ -990,6 +991,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
beanNames = autowireCandidates.toArray(new String[autowireCandidates.size()]);
}
}
if (beanNames.length == 1) {
String beanName = beanNames[0];
return new NamedBeanHolder<>(beanName, getBean(beanName, requiredType, args));
......@@ -1009,6 +1011,7 @@ public class DefaultListableBeanFactory extends AbstractAutowireCapableBeanFacto
}
throw new NoUniqueBeanDefinitionException(requiredType, candidates.keySet());
}
return null;
}
......
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