When working with QueryType as a service, it's impossible to inject anything into this service using constructor or setter (Symfony `caller` method).

I was trying to create a new QueryType as a service on ezplatform-demo to use it for displaying blog posts on Top Stories section.

I was trying to inject languages array via Symfony caller method:

app.blog_posts_query_type:
    class: AppBundle\QueryType\BlogPostsQueryType
    calls:
        - [setLanguages, ["$languages$"]]
    tags:
        - { name: ezpublish.query_type }

Unfortunately setLanguages method is never fired.

Same for passing variables via constructor - it doesn't work.