class PreferenceScopeValidatorImpl implements PreferenceScopeValidator {

    protected boolean isEmpty(String str) {
        return str == null || str.trim().isEmpty();
    }

    protected  PreferenceScopeValidatorImpl();
    @Inject public  PreferenceScopeValidatorImpl(@Customizable final PreferenceScopeTypes scopeTypes,
                                        @Customizable final PreferenceScopeResolutionStrategy scopeResolutionStrategy);

}