Editing Primes

The primes program is purely for demonstration purposes, it would be nonsensical to generate primes and retrieve the dividers from a database. The subprograms are in fact objects, containing methods and data.
= Program structure =
The program consists of a main program and three subprograms. The main program [[primesmain.cbl]] is invoked by the command 'primesmain report'. The subprograms implementing the objects and methods are:
* primesui, providing the user interface as a print file
* primesgen, manages the proces of primes generation and reporting, it does the prime determination too.
* primes
Only the primes program makes use of the PostgreSQL [[primes.sql]] database and so a good demonstration of three tier design. The database dump file is available for download here: [https://wiki.webhuis.nl/images/primes.sql primes.sql ].
== primesmain ==
The program source code file is available for download here: [https://wiki.webhuis.nl/images/primesmain.cbl primesmain.cbl ]. When executed primesmain puts out the file [[primes.prt]].<br />
The program only needs a cobol compile process, which is as follows:
<pre>
/usr/bin/cobc -x primesmain.cbl -T primesmain.out
</pre>
This results in the executable program file '''primesmain''' and the compilation listing [[primesmain.out]].

== primesgen ==
The primesgen program [[primesgen.cbl]] is the program responsible for all the logic involved in the primes system. The program source code file is available for download here: [https://wiki.webhuis.nl/images/primesgen.cbl primesgen.cbl ]. The program has to be compiled as a module or a subprogram, it cannot be executed directly.<br />
The program only needs a cobol compile process, which is as follows:
<pre>
/usr/bin/cobc -m primesgen.cbl -T primesgen.out
</pre>
This results in the program module file '''primesgen.so''' and the compilation listing [[primesgen.out]].
== primesui ==
The primes program [[primesui.cbl]] is the program responsible for all the user interactions. The program source code file is available for download here: [https://wiki.webhuis.nl/images/primesgen.cbl primesui.cbl ]. The program has to be compiled as a module or a subprogram, it cannot be executed directly.<br />
The program only needs a cobol compile process, which is as follows:
<pre>
/usr/bin/cobc -m primesui.cbl -T primesui.out
</pre>
This results in the program module file '''primesui.so''' and the compilation listing [[primesui.out]].
== primes ==
The primes program [[primes.cbl]] is the program responsible for all the database interactions. The program source code file is available for download here: [https://wiki.webhuis.nl/images/primesgen.cbl primes.cbl ]. The program has to be compiled as a module or a subprogram, it cannot be executed directly.<br />
The program needs a precompile process, which is as follows:
<pre>
/usr/bin/gixsql primes.cbl primes.cbsql -S -I . -e ".,*.cpy,*.CPY"
</pre>
This results in the cobol program file '''primes.cbsql''' [[primes.cbsql]].<br />
The next steps is the cobol compilation itself:
<pre>
/usr/bin/cobc -m primes.cbsql -l:libgixsql.so -T primes.out
</pre>
This results in the program module file '''primes.so''' and the compilation listing [[primes.out]].
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Back to: [[Cobol and PostgreSQL]]