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From "Richard Liang" <richard.lian...@gmail.com>
Subject Re: [classlib][sql] Another confusing behavior: java.sql.Timestamp
Date Thu, 07 Sep 2006 07:58:01 GMT
Hello,

I have raised Harmony-1400[1] for this issue. Thanks a lot.

[1]http://issues.apache.org/jira/browse/HARMONY-1400

Best regards,
Richard.

On 8/30/06, Richard Liang <richard.liangyx@gmail.com> wrote:
>
>
> Geir Magnusson Jr. wrote:
> > 1) What should it do?
>
> When calculating nanos value, underflow may occur if the given time is
> near Long.MIN_VALUE. In fact, I'm also not sure what it should do. Just
> notice that RI handles the underflow situation in a special/confusing
> way, while Harmony does not have any handling.
>
> >
> > 2) if it's just a single value, why not fix it and never have to deal
> > w/ it again?  Is it an easy fix?
> Yes, the fix is quite easy. Do you mean we shall follow RI?
>
> Thanks a lot.
>
> Richard.
> >
> > geir
> >
> >
> >
> > Anton Luht wrote:
> >> Hello,
> >>
> >> I don't think we should bother about single value which is very
> >> unlikely to happpen in real data.
> >>
> >> On 8/29/06, Richard Liang <richard.liangyx@gmail.com> wrote:
> >>> Hello All,
> >>>
> >>> RI's  java.sql.Timestamp(long time)  behaves confusing when the
> >>> parameter time is in  Long.MIN_VALUE. Shall we follow RI?
> >>>
> >>> Output of the following sample is:
> >>> time: -9223372036854775808
> >>> time: 9223372036854775192
> >>> timestamp: 292278994-08-17 15:12:55.192
> >>> timestamp: 292278994-08-17 15:12:55.192
> >>>
> >>>
> >>> =========================================
> >>> import java.sql.Timestamp;
> >>>
> >>> public class TimeStampTest {
> >>>    public static void main(String[] args) {
> >>>        long time = Long.MIN_VALUE;
> >>>        long time2 = 9223372036854775192l;
> >>>        Timestamp timestamp = new Timestamp(time);
> >>>        Timestamp timestamp2 = new Timestamp(time2);
> >>>
> >>>        System.out.println("time: " + time);
> >>>        System.out.println("time: " + time2);
> >>>
> >>>        System.out.println("timestamp: " + timestamp);
> >>>        System.out.println("timestamp: " + timestamp2);
> >>>    }
> >>> }
> >>>
> >>>
> >>> --
> >>> Richard Liang
> >>> China Software Development Lab, IBM
> >>>
> >>>
> >>>
> >>> ---------------------------------------------------------------------
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> >>>
> >>>
> >>
> >>
> >
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> >
> >
>
> --
> Richard Liang
> China Software Development Lab, IBM
>
>
>
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>
>


-- 
Richard Liang
China Software Development Lab, IBM

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