Spring: define and wire a bean in the same class

Question

By using Java Config, how can I wire a bean in the same class when it is defined?

For example:

@Bean
public Foo foo() {
    return new Foo();
}

@Autowired
private Foo foo;

@Bean
public Bar bar() {
    return new Bar(foo);
}

Note: this code returns an error.

Answer 1

@Bean
public Foo foo() {
    return new Foo();
}


@Bean
public Bar bar() {
    return new Bar(foo());
}

Alternatively the Bar bean could also be configured as so:

@Bean
public Bar bar(Foo foo) {
    return new Bar(foo);
}