Pathway/iTS Web Client Programming Manual (G06.24+)

SCREEN COBOL-to-Web Conversion Mappings
Compaq NonStop Pathway/iTS Web Client Programming Manual—520270-001
5-2
Components of the Web Client
Components of the Web Client
For each SCREEN COBOL application, the converter generates the following Java
classes and HTML files:
•
Main Java applet
•
Starting page
•
Initial page
•
Control page
•
Java classes for the program units
•
User HTML pages for the Screen Sections
Main Java Applet
The main applet is contained in a file named initprog_MAINAPP.java, where
initprog is the Program Unit name specified in the INITPROG parameter of the
CONVERT command. If the APPNAME parameter is specified in the CONVERT
command, then the file name has the format appname.java. The main applet
contains the generic applet code, which acts as a container for individual program unit
classes. It starts an execution thread for the program units and retains the context across
program units during CALL processing. It also provides methods to be called from
HTML pages on completion of HTML events.
Starting Page
The starting page is an HTML page. This is the first application component to be
loaded by the client’s browser. This page defines a START button. When the user clicks
the START button, a new browser window is created and the Initial page is loaded .
The name of the HTML file is derived from the user-specified INITPROG or
APPPNAME parameter followed by _START; hyphens in the user-specified parameter
are replaced with underscores (_) in the generated name. For example, if the name of
the INITIAL program unit is MY-SCOBOL-APP, the name of the generated starting
page is MY_SCOBOL_APP_START.html.
Initial Page
The initial page is an HTML page. This is the second application component to be
loaded by the client's browser. This page defines the frames on the browser window.
The name of the HTML file is derived from the user-specified INITPROG or
APPNAME parameter followed by _PAGE1; hyphens in the user-specified parameter
are replaced with underscores (_) in the generated name. For example, if the name of
the INITIAL program unit is MY-SCOBOL-APP, the name of the generated initial page
is MY_SCOBOL_APP_PAGE1.html.