[threeten-dev] [threeten-develop] Integration with other JDK classes

[Nikolay Metchev]

On a related note should the java.text.DateFormat class and subclasses be
modified as well? If not should it be marked as deprecated?


On 5 December 2012 14:46, Stephen Colebourne <scolebourne at joda.org> wrote:

> The question is to what degree should existing JDK date/time classes
> support integration with 310?
> Key open question to everyone is how much integration should be done?
>
> Here is my list and proposls:
> util.Date - implement DateTimeAccessor (INSTANT_SECONDS and fractional
> second fields)
> sql.Date - implement DateTimeAccessor (EPOCH_DAY and related)
> sql.Time - implement DateTimeAccessor (NANO_OF_DAY and related)
> sql.Timestamp - implement DateTimeAccessor (all ChronoField)
> Calendar - implement DateTimeAccessor (all ChronoField)
> GregorianCalendar - implement DateTimeAccessor (all ChronoField and zone)
> FileTime should implement DateTimeAccessor
> xml.XMLGregorianCalendar should implement DateTimeAccessor
> xml.Duration should implement PlusAdjuster and MinusAdjuster
> TimeUnit should implement PeriodUnit
>
> In addition, some common additional methods would be very helpful:
> Date.toInstant()
> util.Date.from(DateTimeAccessor)
> sql.Date.from(DateTimeAccessor)
> sql.Time.from(DateTimeAccessor)
> sql.Timestamp.from(DateTimeAccessor)
> Calendar.toInstant()
> Calendar.from(DateTimeAccessor)
> GregorianCalendar.toZonedDateTime()
> GregorianCalendar.from(DateTimeAccessor)
>
> GregorianCalendar might beneft from toLocalDate() and toLocalTime().
>
> The sql subtypes of util.Date are of course troublesome. The JDBC
> group need to advise on whether they consider them effectively
> deprecated or not.
>
> DAYS in TimeUnit will be different to DAYS in ChronoUnit as it is
> exactly 24 hours.
>
> I think that is all the JDK date/time classes. I could be wrong...
>
> Stephen
> (This was a private discussion being made public)
>
>
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