public JEVisRelationshipWS(JEVisDataSourceWS ds, JsonRelationship json)
        {
            //        logger.trace("New Relationship: {}->{}", json.getFrom(), json.getTo());
            this.ds   = ds;
            this.json = json;

            type = json.GetType();
        }
 public string ToString()
 {
     return("JEVisRelationshipWS{" + "startobj=" + json.GetFrom() + ", endobj=" + json.GetTo() + ", type=" + json.GetType() + '}');
 }