Petals BC REST

Hello, I would like to be able to create a service with optional url parameters. The use of url parameters is possible but does not allow the optional character of the parameters. If I define my service as well <rest:operation name="adresse:RechercherAdresses"> <rest:http-method>GET</rest:http-method> <rest:path-template>/</rest:path-template> <rest:http-body-type>none</rest:http-body-type> <rest:xml-template> <adresse:rechercher> <ligneAdresse>{texte}</ligneAdresse> <nomCommune>{commune}</nomCommune> <codePostal>{cp}</codePostal> <coorX>{x}</coorX> <coorY>{y}</coorY> <type>{type}</type> </adresse:rechercher> </rest:xml-template> With the following URL /?texte=xx&type=zz the result will be <adresse:rechercher> <ligneAdresse>xx</ligneAdresse> <nomCommune>{commune}</nomCommune> <codePostal>{cp}</codePostal> <coorX>{x}</coorX> <coorY>{y}</coorY> <type>zz</type> </adresse:rechercher> The goal is to have at least <adresse:rechercher> <ligneAdresse>xx</ligneAdresse> <nomCommune></nomCommune> <codePostal></codePostal> <coorX></coorX> <coorY></coorY> <type>zz</type> </adresse:rechercher> attached a diff to achieve this feature. Thank you