Creating collection of Spring Beans

BeanCollectionConfig.java

@Configuration
public class MyConfiguration implements BeanFactoryPostProcessor {
    //--- Usual @Bean functions go here ---

    private static String[] params = {"param1", "param2", "param3", "param50"};

    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        Arrays.asList(params).forEach(param -> createAndRegister((BeanDefinitionRegistry)beanFactory, param));
    }

    /*
     * The bean definition is created and the bean is registered with the Spring Container
    */
    private void createAndRegister(BeanDefinitionRegistry registry, String param) {
        registry.registerBeanDefinition(getCustomBeanName(param),
                BeanDefinitionBuilder.genericBeanDefinition(MyClass.class).addConstructorArgValue(param).getBeanDefinition());
    }

    /*
     * This gives the name of the bean corresponding to a param. The bean gets registered in the Spring container with this name
    */
    private String getCustomBeanNameString param) {
        return param + "Bean";
    }  
    
}