return (rel != null) ? rel.otherType : null;
if (rel != null) {  if (rel.virtual && (rel.prototype == null)) { return null; } else { return rel.otherType; } }  return null;
    public DbMapping getExactPropertyMapping(String propname) {        Relation rel = getExactPropertyRelation(propname);        return (rel != null) ? rel.otherType : null;    }