package org.hibernate.validator.referenceguide.chapter11.propertypath; import java.util.HashSet; import java.util.Set; import javax.validation.Valid; public class Building { @Valid private Set<Apartment> apartments = new HashSet<Apartment>(); public Set<Apartment> getApartments() { return apartments; } public void setApartments(Set<Apartment> apartments) { this.apartments = apartments; } }