I don't think the time zone ID's change so much, but the database is updated
several times per year (per a reference in Wikipedia,
http://en.wikipedia.org/wiki/Tz_database). Every change would require
checking, confirming, and at minimum posting a note as to whether the
current Joda release is in line with the current Olsen DB. A pain in the
rear at a minimum, not to mention risky to users as it's a pretty obscure
dependency that would be created (the TZ DB update may be an unrelated, or
automatic update on a system, whereas Joda releases would be a separate,
manual software update). You could indeed create your own Enum, but it's
probably not worth the effort since you're probably only saving a few lines
of code by using an Enum over the available methods that do the same.
From: Matthew Adams [mailto:[email protected]]
Sent: Friday, April 15, 2011 12:00 PM
To: Discussion of the Joda project
Cc: Stephen Colebourne
Subject: Re: [Joda-interest] Are there enums of the timezone id strings
somewhere?
Hi all,
I guess I didn't realize how much the database changes. I thought it
was infrequent enough to use enums instead of strings, in which case
I'd be ok with a Joda library update to capture the changes, but I
guess not.
Thanks,
Matthew
On Thu, Apr 14, 2011 at 7:08 PM, Stephen Colebourne
<[email protected]> wrote:
> An enum is generally a bad idea for data that may change over time.
> The examples below are a good way to find the zones.
>
> Stephen
>
>
> On 15 April 2011 00:42, Tauren Mills <[email protected]> wrote:
>> I'm not sure it would make sense to create an enum of the timezones.
>> My understanding is that timezone information is pulled from the Olson
>> database installed onto your system or java installation. This
>> database can be updated as changes to timezones occur. If there was an
>> enum, it would require that JodaTime be recompiled each time the
>> database changes instead of just loading the database.
>>
>> Perhaps I'm mistaken on how this works, and if so, please advise. The
>> suggestions others have given should do the trick for getting a list
>> of timezones.
>>
>>
>> On Thu, Apr 14, 2011 at 2:34 PM, Matthew Adams <[email protected]>
wrote:
>>> Hi all,
>>>
>>> Are there enums of the long string ids of timezones somewhere? Like
>>> "America/Los_Angeles"? I know we're supposed to use those, but where
>>> are they defined? RTFMs are welcome for this question.
>>>
>>> Thanks,
>>> Matthew
>>>
>>> --
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