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computers / comp.os.vms / Re: VMS Tech Demo 9 - index-sequential files and JVM script languages

VMS Tech Demo 9 - index-sequential files and JVM script languages

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From: arn...@vajhoej.dk (Arne Vajhøj)
Newsgroups: comp.os.vms
Subject: VMS Tech Demo 9 - index-sequential files and JVM script languages
Date: Sat, 21 Oct 2023 20:32:40 -0400
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by: Arne Vajhøj - Sun, 22 Oct 2023 00:32 UTC

Just out.

https://www.vajhoej.dk/arne/articles/vmstd9.html

Examples of working with VMS index-sequential files in Jython and Groovy.

Arne

PS: Developed and tested on VMS x86-64 !!

Re: VMS Tech Demo 9 - index-sequential files and JVM script languages

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Subject: Re: VMS Tech Demo 9 - index-sequential files and JVM script languages
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by: Jake Hamby (Solid St - Mon, 23 Oct 2023 17:37 UTC

On Saturday, October 21, 2023 at 5:32:46 PM UTC-7, Arne Vajhøj wrote:
> Just out.
>
> https://www.vajhoej.dk/arne/articles/vmstd9.html
>
> Examples of working with VMS index-sequential files in Jython and Groovy.
>
> Arne
>
> PS: Developed and tested on VMS x86-64 !!

Very cool! I couldn't find the source code for the JNI library, though, nor a built .exe of it.

I'm interested to see cross-platform APIs like these because IBM is doing very similar things with z/OS, and they also have ISAM (VSAM now).

Re: VMS Tech Demo 9 - index-sequential files and JVM script languages

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From: arn...@vajhoej.dk (Arne Vajhøj)
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Subject: Re: VMS Tech Demo 9 - index-sequential files and JVM script languages
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by: Arne Vajhøj - Mon, 23 Oct 2023 18:05 UTC

On 10/23/2023 1:37 PM, Jake Hamby (Solid State Jake) wrote:
> On Saturday, October 21, 2023 at 5:32:46 PM UTC-7, Arne Vajhøj wrote:
>> Just out.
>>
>> https://www.vajhoej.dk/arne/articles/vmstd9.html
>>
>> Examples of working with VMS index-sequential files in Jython and Groovy.
>
> Very cool! I couldn't find the source code for the JNI library, though, nor a built .exe of it.

https://www.vajhoej.dk/arne/opensource/isam/

get latest isam-bin-vms.zip and isam-vms.zip and:

$ unzip isam-bin-vms.zip ! isam.jar + record.jar (general stuff) + temp.zip
$ unzip -aa temp.zip ! java docs
$ unzip isam-vms.zip ! isam-vms.jar (RMS plugin) + temp.zip
$ unzip -aa temp.zip ! JNI C code
$ @build ! build the shareable image - see note
$ @setup ! setup a few logicals

Note: requires java$build_option.exe from VMS Java and
scan_globals_for_option.com which is only available in
older VMS Java, but you can just run java$build_option.exe
manually instead.

You can also take isam-src.zip and build the jar's yourself
(the code is under Apache license).

> I'm interested to see cross-platform APIs like these because IBM is doing very similar
> things with z/OS, and they also have ISAM (VSAM now).

That should be possible.

It already supports:
- VMS RMS index-sequentila files
- Oracle BDB
- VBISAM

(there are separate ZIP files for BDB and VBISAM)

Arne

Subject	Author
VMS Tech Demo 9 - index-sequential files and JVM script languages	Arne Vajhøj
Re: VMS Tech Demo 9 - index-sequential files and JVM script languages	Jake Hamby (Solid State Jake)
Re: VMS Tech Demo 9 - index-sequential files and JVM script languages	Arne Vajhøj