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Flexible constructor resolution in AutowireCapableBeanFactory.createBean(Class)

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Closes gh-29855
See gh-29823
This commit is contained in:
Juergen Hoeller
2023-01-19 17:10:42 +01:00
parent 94fc24b6fb
commit 0e8838db90
6 changed files with 15 additions and 17 deletions
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4
spring-beans/src/main/java/org/springframework/beans/factory/config/AutowireCapableBeanFactory.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2019 the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -130,6 +130,8 @@ public interface AutowireCapableBeanFactory extends BeanFactory {
* {@link BeanPostProcessor BeanPostProcessors}.
* <p>Note: This is intended for creating a fresh instance, populating annotated
* fields and methods as well as applying all standard bean initialization callbacks.
* Constructor resolution is done via {@link #AUTOWIRE_CONSTRUCTOR}, also influenced
* by {@link SmartInstantiationAwareBeanPostProcessor#determineCandidateConstructors}.
* It does <i>not</i> imply traditional by-name or by-type autowiring of properties;
* use {@link #createBean(Class, int, boolean)} for those purposes.
* @param beanClass the class of the bean to create

5
spring-beans/src/main/java/org/springframework/beans/factory/support/AbstractAutowireCapableBeanFactory.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2022 the original author or authors.
* Copyright 2002-2023 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -314,8 +314,9 @@ public abstract class AbstractAutowireCapableBeanFactory extends AbstractBeanFac
@Override
@SuppressWarnings("unchecked")
public <T> T createBean(Class<T> beanClass) throws BeansException {
// Use prototype bean definition, to avoid registering bean as dependent bean.
// Use non-singleton bean definition, to avoid registering bean as dependent bean.
RootBeanDefinition bd = new RootBeanDefinition(beanClass);
bd.setAutowireMode(AUTOWIRE_CONSTRUCTOR);
bd.setScope(SCOPE_PROTOTYPE);
bd.allowCaching = ClassUtils.isCacheSafe(beanClass, getBeanClassLoader());
return (T) createBean(beanClass.getName(), bd, null);