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Java Web Start® is a product supplied free of charge by Sun.

 

It is used to provide Java applications on a Web server; these applications can then be downloaded by a web browser, but are run away from the browser like a Java application.

 

Java Web Start® checks that the application run on the client workstation is up to date. If not, it only downloads the relevant modifications.

 

By default, Java Web Start® runs in a secure mode, ensuring that the application neither reads nor modifies any files on the client workstation (like Applets).

 

This type of application is well-suited for the client part of a Visual Adelia client/server application where the client uses HTTP to connect to a Web server, in order to work with data located on a physical server (which is generally not the Web server).

 

More detailed information about Java Web Start® is available on the Sun web site, at the following address: http://java.sun.com/products/javawebstart/.

 

Configuring a web server to provide Java applications via Java Web Start:

  1. Install the jws.war file supplied by Hardis (on the Adelia CD-ROM, in Adelia\WebServer) in your Web application server.
  2. Place the .jar and .jnlp files produced by the Adelia Studio installation manager in the jws\resources directory (you must have a Java variant and specify the necessary data concerning Java Web Start®).

 

Important: Remember to specify the following configuration files as "Other files" in your variant:

 

    • MWCLIENT.INI (client middleware configuration).
      You can use the $$SERVER wildcard variable when specifying the physical server's URL.
      The $$SERVER variable can be used as follows:
      • $$SERVER/AdeliaHTTP/MwServlet where $$SERVER represents "http://machine_name:port"
      • http://$$SERVER/AdeliaHTTP/MwServlet where $$SERVER represents "machine_name:port"
      • http://$$SERVER:8080/AdeliaHTTP/MwServlet where $$SERVER represents "machine_name"

    • CfgConfiguration.properties (for which you should specify "ID_FILE_CONFIG = MWCLIENT.INI"),

    • ExecutionControls.properties (which contains the Adelia Java applications' execution parameters).

 

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