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From: Jeff Higgins <jeff@invalid.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: application server, just without the "web" part...
Date: Sat, 17 May 2014 07:42:40 -0400
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On 05/17/2014 05:46 AM, Andreas Leitgeb wrote:
> Arne Vajhøj <arne@vajhoej.dk> wrote:
>> On 5/15/2014 10:32 AM, Andreas Leitgeb wrote:
>>> Arne Vajhøj <arne@vajhoej.dk> wrote:
>>>> On 5/14/2014 3:16 PM, Andreas Leitgeb wrote:
>>>>> Startup-time still isn't exactly Java's strong point,...
>>>>> I'd like to consider some kind of application server, that would
>>>>> run the actual java-code of any number of jobs (of one user) in one
>>>>> jvm, and with an "interface", that would only allow that one user to
>>>>> start new jobs.
>>>> Why not run beanshell and run the classes from that.
>>>> $ java -cp wherebshis:whereyourstuffis bsh.Interpreter
>>>> bsh% somepackage.SomeClass.main(null);
>>>> bsh% somepackage.SomeOtherClass.main(null);
>>> I googled and found http://www.beanshell.org/javadoc/bsh/Interpreter.html
>>> I'm not yet sure if this will help me with separating multiple
>>> jobs running at the same time, but it might help me in my process
>>> of incrementally implementing what I need.
>>
>> Now I am confused.
>>
>> You worry about the JVM startup time - implying that it is
>> somewhat significant compared to job run time.
>> But you want to run multiple jobs in parallel - implying that
>> jobs run for a long time.
>
> There are short jobs, long jobs eventually spawning short
> jobs while running.
>
> In principle I could distinguish them beforehand and only
> use bean-shell for the short ones (running them serialized).
>
> However, I'm not sure if I can correctly predict it in
> all cases, so I'm looking for a general solution that
> won't require me to distinguish.
>

It's starting to sound like OSGI to me.
OSGI Standard Services
<http://en.wikipedia.org/wiki/OSGi#Services>

Or even a Business Process Management platform | framework