public void init(ModeledAuthenticatedUser currentUser, ParentObjectType parent) {
        super.init(currentUser);
        this.parent = parent;
    }
Initializes this RelatedObjectSet with the current user and the single
object on the parent side of the one-to-many relation represented by the
set.

@param currentUser
    The user who queried this RelatedObjectSet, and whose permissions
    dictate the access level of all operations performed on this set.

@param parent
    The parent object which shares some arbitrary relation with the
    objects within this set.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/base/RelatedObjectSet.java