Introduction to Service Queries

Overview

This page gives you an introduction to querying services. This is a fundamental concept used throughout Xenon. For example, authorization in Xenon is based on queries.

This tutorial assumes that you have gone through the introductory Example Service Tutorial. There is an in-depth Query Task Tutorial that will give you more extensive detail, including making queries in Java.

This tutorial assumes you have installed Xenon and can run it from the command-line.