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Re: Searching for a "TimeInterval" type...

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Marcel Müller <news.5.maazl@spamgourmet.org> wrote:
> However, there are some non-unique definitions of time spans in 
> business. E.g. one month. It may mean anything between 28 and 31 days as 
> well as an undefined time period, e.g. if you add one month to Jan. 30th.

Calendar fortunately deals quite well with my needs, already.
My intervals do not translate into numbers of seconds.

>> One alternative could be to just wrap a new int[Calendar.FIELD_COUNT],
>> and use the Calendar-constants to index into the array, but I wonder,
>> if I'm perhaps missing something more elegant.
> You missed nothing. [...]

I noticed that GregorianCalendar is not final, so I'm now extending my 
Interval type from that, overriding those methods that would "prematurely"
do calls to "complete()", or check valid ranges.  Among others I'm overriding
getMinimum and getMaximum to return Integer.MIN_VALUE and .MAX_VALUE .

I'll see if that is enough to allow "100 days" be represented without 
unintended propagation to months.

> However, for business this might sill be insufficient. There are terms 
> like 'after three business days'. The result might be different from 
> country to country.

Business day logic is not part of my task. (It might be later implemented
on top of Calendar and my interval-class, though)

Thanks for pointing out the pitfalls with date&interval-arithmetics.

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Thread

Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-01 17:29 +0000
  Re: Searching for a "TimeInterval" type... markspace <markspace@nospam.nospam> - 2013-10-01 11:11 -0700
    Re: Searching for a "TimeInterval" type... markspace <markspace@nospam.nospam> - 2013-10-01 11:22 -0700
      Re: Searching for a "TimeInterval" type... Arne Vajhøj <arne@vajhoej.dk> - 2013-10-01 19:51 -0400
      Re: Searching for a "TimeInterval" type... Sebastian <news@seyweiler.dyndns.org> - 2013-10-02 09:23 +0200
        Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-02 14:42 +0000
          Re: Searching for a "TimeInterval" type... Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-10-03 07:57 +0200
            Re: Searching for a "TimeInterval" type... Arne Vajhøj <arne@vajhoej.dk> - 2013-10-03 20:44 -0400
              Re: Searching for a "TimeInterval" type... Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-10-05 04:22 +0200
          Re: Searching for a "TimeInterval" type... Sebastian <news@seyweiler.dyndns.org> - 2013-10-16 19:43 +0200
  Re: Searching for a "TimeInterval" type... Marcel Müller <news.5.maazl@spamgourmet.org> - 2013-10-01 21:54 +0200
    Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-02 15:02 +0000
  Re: Searching for a "TimeInterval" type... Silvio <silvio@internet.com> - 2013-10-01 22:04 +0200
  Re: Searching for a "TimeInterval" type... Arne Vajhøj <arne@vajhoej.dk> - 2013-10-01 19:53 -0400
    Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-02 15:12 +0000
      Re: Searching for a "TimeInterval" type... Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2013-10-02 23:25 +0300
        Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-02 23:56 +0000
          Re: Searching for a "TimeInterval" type... Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2013-10-03 17:18 +0300
            Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-03 18:54 +0000
              Re: Searching for a "TimeInterval" type... Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2013-10-03 23:53 +0300
      Re: Searching for a "TimeInterval" type... Silvio <silvio@internet.com> - 2013-10-02 23:03 +0200
        Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-03 00:04 +0000
      Re: Searching for a "TimeInterval" type... Arne Vajhøj <arne@vajhoej.dk> - 2013-10-02 21:36 -0400
        Re: Searching for a "TimeInterval" type... Arne Vajhøj <arne@vajhoej.dk> - 2013-10-03 21:41 -0400
          Re: Searching for a "TimeInterval" type... Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-10-04 09:17 +0000
            Re: Searching for a "TimeInterval" type... Arne Vajhøj <arne@vajhoej.dk> - 2013-10-04 20:52 -0400

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