<?xml version="1.0" encoding="UTF-8"?> <a:service xmlns:a="http://www.leaf-framework.org/application" trace="true"> <a:init-procedure> <a:model-query defaultwhereclause="parameter_id=${/parameter/@parameter_id}" model="sys.sys_parameters"/> </a:init-procedure> <a:service-output output="/parameter"/> </a:service>