在 Spring 配置中自动装配/注入一个类型的单个 bean 和一个类型的 bean 列表的 bean

Question

I have following set up in my spring configuration

@Bean
public Myclass myClassOne() {
    return new MyClass();
}

@Bean
public Myclass myClassTwo() {
    return new MyClass();
}

@Bean
public YourClass processAndCreateYourClass(List<MyClass> allMyclasses) {
    //Some business logic to process all myclasses beans so that I can create YourClass bean
     return new YourClass();
}

This works as expected and I get a list of all myclasses injected in processAndCreateYourClass (without autowired annotation) BUT what If I have one more bean like following

@Bean
public List<Myclass> listOfMyClasses() {
    //return list of my classes from here
}

in processAndCreateYourClass method I was expecting union of all individually declared myclass beans and list returned by listOfMyClasses . But that doesn't seem to be the case. Is it fair to expect that behavior from Spring or there is better elegant solution for this?

Answer 1

Mmm.. i recommend to you use qualifiers to add your beans to the "processAndCreateYourClass".

Something like this will have maintainability and easy to read.

@Bean
public YourClass processAndCreateYourClass(@Qualifier("myClassOne") Myclass1, @Qualifier("myClassTwo") Myclass2) {
    //Some business logic to process all myclasses beans so that I can create YourClass bean
     return new YourClass();
}