Spring. Resolve circular dependency with java config and without @Autowired

Question

I\'ve got circular dependency and java config. While resolving it with xml config is very easy I can\'t resolve it with java config without @Autowired. Beans:

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Answer 1

Another approach using @Autowired and @Component is to use this pattern:

@Component
class A {
    private B b;

    public B getB() {
        return b;
    }

    public void setB(final B b) {
        this.b = b;
    }
}


@Component
class B {
    private final A a;

    @Autowired
    public B(final A a) {
        this.a = a;
        a.setB(this);
    }

    public A getA() {
        return a;
    }
}

This eliminates the need for a separate @Configuration-class. Furthermore, the setB-method can possibly be package-protected if the classes exist in the same package to minimize scoping as much as possible.