Forming a QueryDSL Predicate through a OneToMany join

[donlyon]

I'm having difficulty determining the right way to write a Predicate with QueryDSL and Spring Data JPA.

Take the following Data model:

public class Company {
@OneToMany
private Set<Employee> emps;
}

public class Employee {
@ManyToOne
private Division division;
}

public class Division {
private String name;
}

I want the Predicate to evaluate to true for companies that have employees in the Research division, so I create the following class:

public class CompanyPredicates {

  public static Predicate hasResearchEmployees {
    return QCompany.company.emps.???.division.name.eq("Research");
  }

This code would be called using:

List<Company> companies = CompanyRepository.findAll(hasResearchEmployees());

Can somebody help me fill in the question marks in the hasResearchEmployees method?

[timowest]

Terribly late with the answer, but I guess the missing piece is any().