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G&R » About G&R » News » Glink for Java Release 6.4 Production version  

Glink for Java Release 6.4 Production version

Glink for Java Production Release 6.4 is ready for download.

Glink for Java is a 100% Java implementation of Glink, including most features of our immensely successful Glink for Windows product. BUT Glink for Java is multi-platform, multi-mode:

  • Glink for Java is truly platform independent.
  • Glink for Java can be a client or a server.
  • Glink for Java can be downloaded on demand as an applet from a Web server into a browser.
  • Glink for Java can be run as a desktop Java application on all Java 2 workstations (Windows, UNIX, Linux, OS/2, MAC OS X).

Glink for Java Professional Edition provides an Application Programming Interface that allows your own Java applets or applications on the workstation to start up and control one or more copies of Glink. Your application can engage in a dialog with the user to tailor the Glink environment. It can start up several copies of Glink simultaneously. It can start Glink copies dedicated as print sessions. Your application can put itself in the background, waiting for line or keyboard events that trigger your own functional extensions to Glink. Your applications can take over complete control of the dialog with the user, connect to several different mainframe applications, and combine mainframe data to give your users a completely new application viewpoint.

Glink for Java Enterprise Edition with the API can be installed on a server, to allow your developers to encapsulate mainframe transactions as Java Beans or Enterprise Java Beans, and build completely new server-side Web applications as servlets that are able to access and update mainframe data.

An Enterprise Java Bean is a special case of a bean, designed to run under control of an Application Server that complies to Sun's J2EE specification. Glink for Java has an optional J2EE compliant Connector. Gconnect allows Enterprise Java Beans to access mainframe applications in compliance with Sun's J2EE Connector Architecture. The G&R/Gconnect technology is available to Bull users as part of the HooX product line, to be announced by Bull. Bull and other G&R distributors will offer G&R/Gconnect to IBM, UNIX, DEC, Prestel and Minitel mainframe customers.

Glink for Java has an optional Java Bean Generator. Gargen allows your developers to step through a mainframe transaction as a normal terminal, and then automatically generate either a Standard Java Bean, or an Enterprise Java Bean that is able to repeat the transaction as needed, using run-time parameters from your server-side Web applications. Bull customers receive the Gargen technology as part of the HooX product. Bull and other distributors will offer Gargen for generation of Java Beans for use with Servlets on any Web server, or for Generation of Enterprise Java Beans for use on a J2EE compliant Application server connecting to IBM, UNIX, DEC and Minitel mainframes with the help of Gconnect.

Glink for Java has an optional 'Direct GCOS Access' module. DGA allows your Glink clients, Glink workstation applications and Glink server applications to access GCOS direct, without the need for a MainWay or other front-end or gateway.

Features of this release

  • A user-friendly 'Getting Started' manual is provided in PDF format. This manual gives you a basic overview of Glink for Java and the different modes of usage. It includes a step by step installation guide and a configuration guide for both server mode and application mode installations. It guides you through user and host configuration, and also start/up of Glink as an applet or application. The manual has a final section on use of the Glink API from your own Java applets or applications.
  • Glink for Java moves to the Java 2 platform, with many benefits:
    • Font with a new font selection dialog box - Font style
    • Margins - Character spacing - Line spacing
  • New optimized Glink version for Glink API usage The API for the optimized version is the same as the standard, except that Glink window is removed and the screen display calls are ignored. It can only be used from a Java application where the user interface is provided by the application using the Glink API. The optimized version is tailor made for Java beans or Java Enterprise beans running on a server.
  • New DSA line module, DGA DGA is a new DSA line module in Java that allows you to connect directly to a Bull DSA host without going through a Ggate server. In many cases it is still a better solution to offload DSA to Ggate, but now you have the option to purchase DGA and connect directly.
  • A Java Bean Generator, Gargen Gargen is an application component generator. Its purpose is to allow you to step through an interaction with an existing application on a mainframe system, and then automatically generate a Java component (Bean) that is able to repeat that interaction when used by a Java application. Most existing host applications are designed to communicate with some kind of terminal. Gargen uses a development copy of Glink for Java Professional Edition to do the host communications, using the appropriate terminal type. Gargen drives a copy of Glink using the Glink for Java Application Programming Interface. Programming of host communication Java Beans can be time-consuming, because of the trivial programmatical details of checking that the expected screen has been received, of selecting the data on the screen that you would like to be an output from your Java Bean and identifying the input that you want to enter, as constants for every execution of the Bean, or as variables to be taken from the input parameters to your Bean. You can automate programming of these host communication Java Beans using Gargen.
  • A J2EE compliant Connector, Gconnect Glink for Java has an optional Connector. Gconnect is a software component written in accordance with Sun's Connector specification (JSR016), providing uniform access to back-end systems from J2EE application servers. It manages pools of reusable connections and allows the creation of scalable and high-performance server-based applications. The Connector is a J2EE Connector Architecture compliant interface that can be installed on Java 2 Enterprise Edition (J2EE) compliant application servers, in order to provide host access to Enterprise Java Beans developed using the Glink Java Bean Generator, or hand programmed using the Glink for Java Professional Edition API. The Connector is qualified in-house with the Sun reference model and BEA WebLogic Server, but should function with any J2EE compliant application server. There are two versions of the Connector. The Bull HooX J2EE Connector for GCOS (DKU, 7800 and 7700 emulations) is exclusive to Bull for access to Bull hosts, and is available only from Bull as a GCOS8 or GCOS7 product. The standard G&R/Glink for Java Connector can be used to access any non-Bull host (IBM 3270, IBM 5250, VT, ANSI, Prestel, Minitel), and is available from Bull and our other distributors. The Connector is licensed by application server.

Supported platforms for Glink for Java

  • Application platforms: The application version of Glink requires that you have a Java Virtual Machine (JVM) of version 1.3.0 or greater installed on your desktop. We include JVMs for several platforms that can be downloaded together with the Glink for Java application version. The VM of choice is Sun Microsystem's Java 1.3.1.
    • Windows (98, NT, 2000, XP)
    • Solaris, Intel
    • Solaris, Sparc
    • HP-UX, PA-RISC
    • AIX, PowerPC
    • Linux, Intel
    • OS/2 Warp
    • Mac OS X
  • Browser platforms: Glink for Java Release 6.4 requires a browser that supports Sun's Java Plug-in techology.

    • Windows:
      • MS Internet Explorer 5.01 SP1, Java 2 plug-in required
      • Netscape Navigator 4.76, Java 2 plug-in required
      • Netscape Navigator 6.1, Java installation option or plug-in
      • Opera 6.0, Java version
    • Linux:
      • Netscape Navigator 4.76, Java 2 plug-in required
    • Solaris:
      • Netscape Navigator 4.76, Java 2 plug-in required
    • Mac OS X:
      • MS Internet Explorer 5.1, Java 2 included

    Other platforms such as UNIX platforms not mentioned specifically above must run 6.4 as a desktop application, requiring a 1.3.1 compliant virtual machine. Server mode installation packages for installation on a web server platform that will deliver the applet version are available for:

    • Alpha, Digital Unix 3.x
    • HP, HP-UX release 10.x and 11.x
    • Intel x86, Windows XP/2000/NT Server 4.0 (Service Pack 3=>)
    • Intel x86, System V release 3.2 (generic)
    • Intel x86, Solaris on Intel
    • Intel x86, Linux kernel 2.x
    • Intel Itanium, Linux kernel 2.x
    • RS/6000/PPC, AIX release 4.x
    • SPARC, Solaris release 2.x

See also Release 6.3

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