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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