// Kotlin code, Java format:

@Component

class ClassWithDependencyFactory(

    dependency: DependencyRepository,

) {

    private val stuffListCache: List<String> = dependency.getAllStuff()

            ?.map { c -> c.code }

            ?: error("Failed to Stuff list")

​

    fun factoryMethodStuff() = stuffListCache

    @PostConstruct

    private fun storeSingleton() {

        instance = this

    }

    companion object {

        fun instance() = instance

    }

}

​

private lateinit var instance: ClassWithDependencyFactory

​

## Another example with Companion Object setter:

@Bean

fun factory(dependency: DependencyRepository) = ClassWithDependencyFactory(dependency).also{ClassWithDependencyFactory.setInstance(it)}

​

class ClassWithDependencyFactory(

    dependency: DependencyRepository,

) {

    private val stuffListCache: List<String> = dependency.getAllStuff()

            ?.map { c -> c.code }

            ?: error("Failed to Stuff list")

    fun factoryMethodStuff() = stuffListCache

    companion object {

        private lateinit var instance: ClassWithDependencyFactory

        fun setInstance(i : ClassWithDependencyFactory) {

            this.instance = i

        }

        fun instance() = instance

    }

}