I am curious as to why folks wouldn't just use
date.getYear() + 1900;
There was a post[1] not to long ago that I replied to (inadvertently 3
times) essentially suggesting the above, but nobody followed up so I'm
wondering if I'm not on the right track.
In a nutshell:
1) The GWT date object is based on the js date object
2) The js Date object's getDate(), getYear(), etc are not deprecated.
3) Official GWT widgets (namely the DatePicker) are using those deprecated
methods
Happy to be proven incorrect, but seems more straightforward to me to use
those methods than to go through a formatter.
Erik
[1]
http://groups.google.com/group/google-web-toolkit/browse_thread/thread/1f04acdede6d9825/713a3dfad374c191?hl=en%CB%89a3dfad374c191
On Tue, Jun 8, 2010 at 09:29, Eric <[email protected]> wrote:
>
>
> On Jun 7, 7:58 pm, Rob Tanner <[email protected]> wrote:
> > I have a Date() object that holds a date of birth and I want to
> > extract the year and make sure no one's trying to tell me they're 150
> > years old, etc. The getYear method of the Date() class is deprecated
> > and you normally use a Calendar() to get the year. The problem is
> > that when I try to use a Calendar() object the application doesn't
> > know what it is. How can I extract the year from a Date() object and
> > not fall back on a deprecated method?
>
> Sadly, the best method is to use GWT's DateTimeFormat:
>
> private static final DateTimeFormat YEAR_FORMAT =
> DateTimeFormat.getFormat("yyyy");
> public static int year(final Date date) {
> return Integer.parseInt(YEAR_FORMAT.format(date));
> }
>
> You can put this into a utility class; you might even want to
> remove the static modifier on year() and inject the class
> where its needed; that might help testing.
>
> Since GWT is being translated to JavaScript, and JS has no
> threads, you can leave YEAR_FORMAT static, and you don't
> need to synchronize access to it or create one for each
> year() call. Still, since you get the format through a getFormat()
> call and not a constructor, I suspect GWT caches DateTimeFormats.
> In that case the following is clearer.
>
> public int year(Date date) {
> return
> Integer.parseInt(DateTimeFormat.getFormat("yyyy").format(date));
> }
>
> Should we all be using [JG]oda-Time?
>
> Respectfully,
> Eric Jablow
>
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