Identity management: concept of @RoleGroups for parents or children?

[kwutzke]

I was wondering about the identity management @RoleGroups annotation. Since it maps to/from the same table, there will be one forward and basically one reverse (mappedBy="...") relationship to the same entity class, like:

@RoleGroups
@ManyToMany
@JoinTable(name = "RoleLinks", joinColumns = @JoinColumn(name = "child_role_id", referencedColumnName = "role_id"), inverseJoinColumns = @JoinColumn(name = "parent_role_id", referencedColumnName = "role_id"))
private Set<Role> parents = new HashSet<Role>();

@ManyToMany(mappedBy = "parents")
private Set<Role> children = new HashSet<Role>();

One of them would represent the parents, the other the children. I could simply exchange the annotations for parents and children, but which one is the @RoleGroups annotation supposed to represent conceptually, parents or children?

Karsten