Chapter 1 Introducing Jaguar CTS

Jaguar execution engine

Jaguar's runtime engine provides a scalable and platform-independent environment for the execution of component based applications. Jaguar is scalable because it is multithreaded and multiprocessor safe.

The Jaguar execution environment is the same across all platforms, with the exception of ActiveX component support. ActiveX requires platform support and is currently available only on Windows NT.

The Jaguar runtime engine provides the following services:

Network listeners for the connections on which clients send remote component invocations. Jaguar's core network server technology is based on Sybase's Open Client/Server™ technology. "Network protocol support" details the supported application protocols.
An execution environment for middle-tier components. See "Server-side component support".
A built-in HTTP server. You can use Jaguar's HTTP support to deploy your application's Java applets and HTML pages.
Hosting of Dynamo Web sites so that you can access those sites from a browser.
Ability to run with different Java virtual machines.
A JagRepair server that you can use to repair your Jaguar server if you cannot start it up because of an incorrect configuration setting.
Declarative security. You can use roles to authenticate and authorize users. See "Declarative security" for more information.
Connection caching. You can define caches of connections for interacting with remote databases from Jaguar components. See "Connection caching" for more information.
Open Server event handler support. You can convert code from legacy Open Server applications to run in Jaguar. See "Support for legacy Open Server applications" for more information.

In addition to these built-in services, you can install service components that run in the background and provide customized services to clients or other components. See Chapter 33, "Creating Service Components", for more information.