[lang] Dates/DateRanges [was Re: Re: Conversion utilities]

[Stephen Colebourne <sc...@btopenworld.com>]

<blatant-self-advertising>
http://joda.sourceforge.net  has code for handling TimePeriods and comparing
dates (In fact its a complete rewrite of dates from the ground up). Only at
0.8 release though.
</blatant-self-advertising>

This is my biggest concern with putting Date and Calendar code into [lang].
There is a lot that can be done to try to fix up the current Date/Calendar
classes. But how much is worth it? Where do we in [lang] draw the line
between useful methods, and the Joda complete rewrite?

Stephen

----- Original Message -----
From: <tr...@thinkvirtual.com>
> The problem with the range interface when relating to dates is that with
dates you would want to specify a field to give the range on, ex: days,
months, weeks, etc.
>
> Travis
>
> ---- Original Message ----
> From: Robert Leland <rl...@apache.org>
> Sent: 2002-11-14
> To: Jakarta Commons Developers List <co...@jakarta.apache.org>
> Subject: Re: Conversion utilities
>
> Henri Yandell wrote:
> >
> > On Thu, 14 Nov 2002, Jeff Varszegi wrote:
> >
> >
> >>Janek,
> >>
> >>I made an interface called Range that is supported by classes called
> >>ComparableRange etc.  The ComparableRange class can use any objects
> >>that support Comparable (or, alternately, any objects with a supplied
> >>Comparator), and I also made specific versions for Date and Double to
>
> Sounds like you could coordinating with the commons-validator package
> there is already a intRange(), floatRange(), in the GenerocValidator
> class. It could definately make use of your Range interface though !
>
>
> -Rob
>
>
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>
>
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RE: [lang] Dates/DateRanges [was Re: Re: Conversion utilities]

[Steven Caswell <st...@caswell.name>]

The Joda date support looks interesting (just took a brief glance, but I
can see where it would be valuable).

I'm wondering, though, if there is still not some place in [lang] for
some basic utilities to help make the JDK Date and Calendar classes
easlier to use. I'm thinking that this would be a filler for those who
can't for whatever reason move over to using Joda. Unless of course you
want to not make it easier for folks to not use Joda :)

Having said that, though, I think we should try to limit the scope of
date/calendar stuff in [lang]. We certainly don't want to reinvent a
wheel that Joda would have already invented.

Steven Caswell
steven@caswell.name
a.k.a Mungo Knotwise of Michel Delving
"One ring to rule them all, one ring to find them..."


> -----Original Message-----
> From: Stephen Colebourne [mailto:scolebourne@btopenworld.com] 
> Sent: Thursday, November 14, 2002 4:34 PM
> To: Jakarta Commons Developers List
> Subject: [lang] Dates/DateRanges [was Re: Re: Conversion utilities]
> 
> 
> <blatant-self-advertising>
> http://joda.sourceforge.net  has code for handling 
> TimePeriods and comparing dates (In fact its a complete 
> rewrite of dates from the ground up). Only at 0.8 release 
> though. </blatant-self-advertising>
> 
> This is my biggest concern with putting Date and Calendar 
> code into [lang]. There is a lot that can be done to try to 
> fix up the current Date/Calendar classes. But how much is 
> worth it? Where do we in [lang] draw the line between useful 
> methods, and the Joda complete rewrite?
> 
> Stephen
> 
> ----- Original Message -----
> From: <tr...@thinkvirtual.com>
> > The problem with the range interface when relating to dates is that 
> > with
> dates you would want to specify a field to give the range on, 
> ex: days, months, weeks, etc.
> >
> > Travis
> >
> > ---- Original Message ----
> > From: Robert Leland <rl...@apache.org>
> > Sent: 2002-11-14
> > To: Jakarta Commons Developers List <co...@jakarta.apache.org>
> > Subject: Re: Conversion utilities
> >
> > Henri Yandell wrote:
> > >
> > > On Thu, 14 Nov 2002, Jeff Varszegi wrote:
> > >
> > >
> > >>Janek,
> > >>
> > >>I made an interface called Range that is supported by 
> classes called 
> > >>ComparableRange etc.  The ComparableRange class can use 
> any objects 
> > >>that support Comparable (or, alternately, any objects with a 
> > >>supplied Comparator), and I also made specific versions 
> for Date and 
> > >>Double to
> >
> > Sounds like you could coordinating with the 
> commons-validator package 
> > there is already a intRange(), floatRange(), in the 
> GenerocValidator 
> > class. It could definately make use of your Range interface though !
> >
> >
> > -Rob
> >
> >
> > --
> > To unsubscribe, e-mail:
> <ma...@jakarta.apache.org>
> > For additional commands, e-mail:
> <ma...@jakarta.apache.org>
> >
> >
> >
> > --
> > To unsubscribe, e-mail:
> <ma...@jakarta.apache.org>
> > For additional commands, e-mail:
> <ma...@jakarta.apache.org>
> >
> 
> 
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> additional commands, 
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> 



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