PortType portType = definition.createPortType();
portType.setQName(new QName(_uri, PORT_TYPE));
portType.setExtensionAttribute(WsrpConstants.DEFAULT_DOCUMENT_QNAME, new QName(_uri,RESOURCE_PROPERTIES));
portType.setUndefined(false);
definition.addPortType(portType);
_schema = (Schema)createExtension(Types.class, SchemaConstants.Q_ELEM_XSD_2001);
_schema.setElement(createEmptyProperties());
Types types = definition.createTypes();