Spring static initialization of a bean

Question

Hey, how one should deal with static initializations in Spring ? I mean, my bean has a static initialization

private static final Map exce         


        

Answer 1

You should be able to mark the class with the @Component annotation, then add a non static setter with @Autowired(required=true) annotation for setting the static variable.

Here's a link for more info.

Answer 2

Having static dependencies on other beans is not a Spring way.

However, if you want to keep it static, you can initialize it lazily - in that case depends-on can enforce proper initialization order.

EDIT: By lazy loading I mean something like this (I use lazy initialization with holder class idiom here, other lazy initialization idioms can be used instead):

private static class ExceptionMappingHolder {
    private static final Map<String, String> exceptionMapping = 
        ErrorExceptionMapping.getExceptionMapping(); 
}

and use ExceptionMappingHolder.exceptionMapping instead of exceptionMapping.