Publish enum members as spring beans-CodePudding

Let's say I have a preexisting enum.

enum Foo {
  FOO1,
  FOO2,
  ...
}

I now want to publish all members as spring beans. I could do:

@Bean("FOO1")
public Foo foo1(){
   return Foo.FOO1;
}


@Bean("FOO2")
public Foo foo2(){
   return Foo.FOO2;
}

...

And so on. Is there a way publish all enum members at once?

Commenters asked why I want to do this:

There is another component BarService with

 @Autowired
 List<Bar> allTheBars;

It collects plenty of Bars already.

I need to make all members of enum Foo available to BarService, too. It would be easiest to have them implement Bar and turn them into beans. Alternatively I could add them manually within BarService but that requires me to change BarService.

CodePudding user response：

There is always only one instance per enum value in a single JVM instance. You could just use Foo.FOO1 wherever you need it in the code without having to inject it as a bean.

CodePudding user response：

You can define your Enum in one of configuration something like:

@Bean(name="EnumBeans")
    Foo[] enums() {
        return Foo.values();
}

Now, this will give you all values / members as soon as you access them:

    @Autowired
    @Qualifier(value="EnumBeans")
    Foo[] enums;
    ..
    public void accessor(){
    for(Foo e:enums) {
    System.out.println(e);
    }
   }