public void remove(SubscribedUser role)
{
StoreRole sr = role.getStoreRole(store);
DBStore.getInstance().removeStoreRole(sr);
if (sr == null)
{
throw new RoleException("user " + role.getUsername() +
" doesn't have a role in store "
+ store.getStoreName());
}
if (sr.getAppointedBy() != this.user)
{
throw new RoleException("user " + user.getUsername() +
" didn't appoint " +
role.getUsername());
}
sr.removeAllAppointedBy();
role.removeStoreRole(sr);
store.removeStoreRole(sr);
}