Overview

This section provides an overview of jBASE Licensing and explains the licensing components.

With jBASE release 4, the licensing model, and licensing components have been completely redesigned to give greater flexibility in deployment options and to offer further expandability for future licensing paradigms.

Since the introduction of the internet, applications have evolved from clients, which retain a constant stateful connection to the server, to a world where connections are stateless and only maintained just as long as is absolutely necessary. Future licensing schemas will need to license products deployed in this way in a fair and equitable manner.

In the first instance, licensing in jBASE offers concurrent licensing in a similar fashion to previous releases. Over time, this licens- ing will be extended to offer more sophisticated licensing models which take into account how much use is made of jBASE itself.

License Components

The following are the license components redesigned to provide greater flexibility in deployment options.

jLicense Server

The license server is the component into which license keys are entered. The license server validates these keys, stores them, and answers enquiries from jSLIM servers which have been configured to use the license server. There is typically one license server per installation of jBASE. There can be any number of jSLIM servers.

jLicense Client

The license client is a graphical tool for administering the license server. It is used to show the status of any licenses installed on a particular server and allows the entry of license keys. Everything that can be accomplished using the client can also be done through a command line console.

jSLIM Server

The jSLIM (System License Information Monitor) server needs to be started on every jBASE server. It provides an efficient mech- anism for individual jBASE components to check their licensing status without needing to communicate with the license server every time. This allows the abstraction of individual jBASE servers away from the license server, or in a simple install- ation, the jSLIM server and the license server can coexist on the same machine.