Installing the Oracle Tuxedo System

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Oracle Jolt 11g Release 1 (11.1.1.3.0) Overview and Installation Information

The following sections provide an overview of Oracle Jolt 11g Release 1 (11.1.1.3.0) and present the prerequisites and preparatory information for installing the Oracle Jolt 11g Release 1 (11.1.1.3.0) software components:

 


About Oracle Jolt

Oracle Jolt is a Java class library and API that enables remote Java clients to access existing Oracle Tuxedo ATMI services. As shown in the following Figure C-1, Oracle Jolt extends the functionality of existing Tuxedo ATMI applications to include intranet- and Internet-wide availability.

Figure C-1 Oracle Jolt Communication Architecture Using the Jolt Applet

Oracle Jolt Communication Architecture Using the Jolt Applet

The preceding figure shows one of five types of Jolt client personalities supported by Oracle Jolt, all of which are briefly described in Oracle Jolt Client Personalities.

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Oracle Jolt Components

Oracle Jolt consists of the following components for enabling secure, reliable access to servers inside corporate firewalls, and for creating Java-based client programs that access Tuxedo ATMI services:

As shown in the following Figure C-2, the Jolt server implementation consists of one or more Jolt Server Handlers, one or more Jolt Server Listeners, and one and only one Jolt Repository Server, all running on the same Oracle Tuxedo server machine.

Figure C-2 Oracle Jolt Server Implementation

Oracle Jolt Server Implementation

A Jolt server listens for network connections from Jolt clients, translates Jolt messages, multiplexes multiple Jolt clients into a single process, and submits and retrieves requests to and from a Tuxedo ATMI application. As with all Tuxedo system executables, the Jolt server components reside in the tux_prod_dir/bin directory, where tux_prod_dir represents the directory in which the Oracle Tuxedo 11g Release 1 (11.1.1.3.0) distribution is installed.

Jolt Server Listener

A Jolt Server Listener (JSL) is a listening process, running on the Tuxedo server, that accepts connection requests from Jolt clients and assigns connections to a Jolt Server Handler also running on the Tuxedo server. It also manages the pool of Jolt Server Handler processes, starting them in response to load demands.

Jolt Server Handler

A Jolt Server Handler (JSH) is a gateway process, running on the Tuxedo server, that handles communications between Jolt clients and the Tuxedo ATMI server application. A JSH process resides within the administrative domain of the application and is registered in the local Tuxedo bulletin board as a client.

Each JSH process can manage multiple Jolt clients. A JSH multiplexes all requests and replies with a particular Jolt client over a single connection.

Jolt Repository Server

The Jolt Repository Server (JREPSVR), running on the Tuxedo server, retrieves Jolt service definitions from the Jolt Repository and returns the service definitions to the Jolt Server Handler. The Jolt Repository Server also provides user support for updating or adding Jolt service definitions to the Jolt Repository.

Jolt Repository

The Jolt Repository, located on the Tuxedo server, is a central repository that contains definitions of Tuxedo ATMI services. These Jolt repository definitions are used by Jolt at run time to access Tuxedo services. You can export services to a Jolt client application or unexport services by hiding the definitions from the Jolt client. Using the Repository Editor, you can test new and existing Tuxedo services independently of the client applications.

Jolt Internet Relay

Jolt Internet Relay routes messages from a Jolt client to a Jolt Server Listener (JSL) or Jolt Server Handler (JSH). It eliminates the need for the JSL, JSH, and Tuxedo application to run on the same machine as the Web server. The Jolt Internet Relay consists of the following components:

Figure C-3 illustrates the Jolt Internet Relay connection path.

Figure C-3 Oracle Jolt Internet Relay Connection Path

Oracle Jolt Internet Relay Connection Path

A Jolt server can connect directly to intranet Jolt clients and can connect indirectly to Internet Jolt clients through the Jolt Internet Relay, all at the same time. Jolt Internet Relay is transparent to Jolt servers and Jolt clients.

The JRLY executable (jrly) resides in the tux_prod_dir/udataobj/jolt/relay directory, whereas the JRAD executable resides in the tux_prod_dir/bin directory.

Jolt Class Library

The Jolt class library consists of Java class files that implement the Jolt API. These classes enable Java clients to invoke Oracle Tuxedo ATMI services. The Jolt class library provides functions to set, retrieve, manage, and invoke communication attributes, notifications, network connections, transactions, and services.

The Jolt class library files reside in the tux_prod_dir/udataobj/jolt directory and are stored in the following JAR files:

To view the content of a Jolt JAR file, ensure that the path to the JDK 1.3 (or higher) software is included at the front of your PATH variable, go to the tux_prod_dir/udataobj/jolt directory, and enter the following command:

prompt> jar -tvf filename.jar

For example:

prompt> jar -tvf jolt.jar
   0 Thu Aug 08 07:19:02 EDT 2002 META-INF/
   68 Thu Aug 08 07:19:02 EDT 2002 META-INF/MANIFEST.MF
   547 Thu Aug 08 07:19:00 EDT 2002
     bea/jolt/ApplicationException.class
   741 Thu Aug 08 07:19:00 EDT 2002 bea/jolt/BData.class
   951 Thu Aug 08 07:19:00 EDT 2002 bea/jolt/ByteArrayUtil.class
   .
   .
   .

JoltBeans

JoltBeans provides a JavaBeans-compliant interface to Oracle Jolt. JoltBeans are Bean components that can be used in JavaBeans-enabled integrated development environments (IDEs) to construct Jolt clients.

JoltBeans consists of two sets of Java Beans: JoltBeans toolkit (a JavaBeans-compliant interface to Oracle Jolt that includes the JoltServiceBean, JoltSessionBean, and JoltUserEventBean) and Jolt GUI beans, which consist of Jolt-aware Abstract Window Toolkit (AWT) and Swing-based beans. The separation of Oracle Jolt into these components permits the transactional and Internet components of client/server applications to be implemented separately with the security and scalability required for large-scale Internet and intranet services.

 


Oracle Jolt Client Personalities

In addition to using Oracle Jolt to build client applets and applications that remotely invoke existing and new Tuxedo applications, Java programmers can use Oracle Jolt to build HTTP servlets to perform server-side Java tasks in response to HTTP requests. This latter type of Jolt connectivity enables simple Web clients to access Tuxedo application services through any Web application server that supports generic servlets.

Oracle Jolt supports the following types of Java client personalities:

 


Oracle Jolt Capabilities

Running as a Java applet or as a standalone Java client application, Oracle Jolt supports the following capabilities:

To accommodate the Oracle Jolt 11g Release 1 (11.1.1.3.0) server (JSL, JSH, JREPSVR) and Jolt Internet Relay (JRLY, JRAD) components, your environment must provide 2 MB of disk space. For Oracle Jolt 11g Release 1 (11.1.1.3.0) system requirements, including supported platforms, see Oracle Tuxedo 11g Release 1 (11.1.1.3.0) Platform Data Sheets.

 


Oracle Jolt Client Support

As stated in Oracle Jolt Client Personalities, Oracle Jolt 11g Release 1 (11.1.1.3.0) supports the following four client types:

Figure C-1 lists the requirements for the Jolt 11g Release 1 (11.1.1.3.0) applet and application client types.

Table C-1 Requirements for Oracle Jolt 11g Release 1 (11.1.1.3.0) Applet and Application Client Types
This client type . . .
Is supported on . . .
Java applet running in a browser
Microsoft Internet Explorer (IE) 6.0 or higher
Jolt application—standalone application—running in a desktop environment
Java Development Kit (JDK) 1.4.x

Figure C-2 lists the requirements for the remaining three Jolt client types, all of which are implemented by HTML-based Jolt client classes running inside a Web server. The Web servers certified with Oracle Jolt 11g Release 1 (11.1.1.3.0) are listed in the table.

Table C-2 Requirements for Web-Server based Oracle Jolt 11g Release 1 (11.1.1.3.0) Client Types
Vendor
Web Server Version
OS Version
Oracle Jolt Client Personality
Comments
Any vendor
Java Servlet Engine
(Any version)
Any OS running JDK 1.4.x
JSE Connectivity for Oracle Tuxedo
For a description, see the first note after this table.
Oracle Systems, Inc.
Oracle WebLogic Enterprise 5.1 or Oracle WebLogic Server 6.0 or higher
Any
WebLogic Connectivity for Oracle Tuxedo (also known as “Oracle Jolt for Oracle WebLogic Server”)

Note: JSE Connectivity for Oracle Tuxedo is the name of the Jolt Web application server that simplifies the handling of servlets in a Oracle Tuxedo application environment. JSE is short for Java Servlet Engine.

Oracle Jolt Client Requirements

Oracle Jolt has the following client requirements:

Oracle Jolt Client Class Library

Various implementations of Java tend to show minor differences in characteristics. Oracle Jolt 11g Release 1 (11.1.1.3.0) is based on JDK 1.5.0_0_9.

The Oracle Jolt class library is compatible with the browsers and JDK versions shown in Figure C-3.

Table C-3 Oracle Jolt Class Library Compatibility
Vendor
Browser Version
Java Virtual Machine (JVM)
OS Version
Microsoft
Internet Explorer 6.0
JDK 1.5.0_0_9
Windows 2003 Server, Windows XP Professional

 


Oracle Jolt Release Interoperability

An Oracle Jolt 11g Release 1 (11.1.1.3.0) client can interoperate with a Oracle Jolt 1.2, 1.2.1, 8.0, 8.1, 9.0, 9.1, or 10.0 server implementation, and the client is able to use the new features available with Oracle Jolt 11g Release 1 (11.1.1.3.0).

An Oracle Jolt 1.2, 1.2.1, 8.0, 8.1, 9.0, 9.1, 10.0 client can interoperate with an Oracle Jolt 11g Release 1 (11.1.1.3.0) server implementation, but only the Oracle Jolt 1.2, 1.2.1, 8.0, 8.1, 9.0, 9.1, or 10.0 functionality is available to the Oracle Jolt client, even though new functionality is added to the Oracle Jolt server-side components when they are upgraded to Oracle Jolt 11g Release 1 (11.1.1.3.0).

 


Oracle Jolt Pre-Installation Checklist

On Windows systems, Oracle Jolt 11g Release 1 (11.1.1.3.0) automatically installs two Microsoft dynamic link libraries (DLLs), MSVCRT.DLL and MSVCRP71.DLL.

 


Oracle Jolt Documentation

For more information about Oracle Jolt, see the following documentation:


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