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Groups > comp.lang.java.programmer > #25416
| From | Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Searching for a "TimeInterval" type... |
| Date | 2013-10-01 17:29 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <slrnl4m1k3.mol.avl@gamma.logic.tuwien.ac.at> (permalink) |
My application will maintain Calendar instances, and I need another type
to hold "intervals", such as (5 months, 4 days and 30 minutes) that I
could conveniently "add" to a Calendar instance.
My first thought was using another Calendar, and do a loop for the
add-operation:
Calendar cal = ...; Calendar intvl = ...;
for (int i=0; i<Calendar.FIELD_COUNT; i++) {
if (intvl.isSet(i)) { cal.add(i,intvl.get(i)); }
}
which would be fine for simple cases, but wouldn't work, if I
wanted to represent "100 days", which definitely isn't equivalent
to "3 months and 10/9 days" (depending on leapyear). If I just
don't call "complete()", then according to the docs get() would
bomb on me, for the days-value being out of bounds.
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. It's hard for me to
believe, that there wasn't any common need for representing intervals
of time in a mixture of units, and not just seconds.
Right now I'm optimizing for elegance not for performance.
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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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