Fetching Bidirectional DbRef relations Spring Data + MongoDB

Question

I am new to MongoDB. I am preparing an example for learning. It looks like when working with bi-directional relationship with Spring Data & DBRef, it gets into end-less cycle and keeps reading the association again and again.

The domain class looks like

class Category{
    private String name;
    private Category parentCategory;
    private Set<Category> childCategories;
    // getter & setters 
}

I wonder if it is the rare scenario to have this sort of bi-directional relationship(quite commong in ORMs though), couldn't get any help on this. One option could be writing custom converter and ignoring anyone side of relation, but that will turn my in-memory object into an inconsistent state.

Please share ideas on this or some best practices on handling such scenarios.

Thanks, Vishal Shukla