Thanks for pointing this out. We have been using YearMonthDay/DateTime. We just upgraded from Joda 1.0 to 1.3. LocalDate and LocalTime look like they are a lot easier to use.
-----Original Message----- From: Stephen Colebourne [mailto:[EMAIL PROTECTED] Sent: Thursday, November 09, 2006 3:08 PM To: Discussion of the Joda project Subject: Re: [Joda-interest] Question: how do you find the first day of th e week given an arbi trary date. Indeed LocalDate is the answer to the problem, but the first day of week/last day of week is simpler: YearMonthDay today = new YearMonthDay(); LocalDate todayLD = today.toLocalDate(); LocalDate firstDOW = todayLD.dayOfWeek().withMinimumValue(); LocalDate lastDOW = todayLD.dayOfWeek().withMaximumValue(); Stephen Matt Benson wrote: > YearMonthDay is almost deprecated. Converting to > LocalDate made this pretty easy: > > YearMonthDay today = new YearMonthDay(); > LocalDate todayLd = new LocalDate(today); > int dow = todayLd.getDayOfWeek(); > LocalDate firstOfWeek = todayLd.minusDays(dow); > LocalDate lastOfWeek = firstOfWeek.plusDays( > DateTimeConstants.DAYS_PER_WEEK); > > DateTimeFormatter dtf = DateTimeFormat.fullDate(); > System.out.println("beginning of this week is " + > + dtf.print(firstOfWeek) > + "; end of this week is " + dtf.print( > lastOfWeek)); > > br, > Matt > > --- "Neil.Martin" <[EMAIL PROTECTED]> > wrote: > > >>I realized my problem was trying to do things using >>YearMonthDay objects. >>Converting to DateTime objects makes it easier: >> >> int daysToEndOfWeek; >> daysToEndOfWeek = 7 - >> > > getTargetDate().toDateTimeAtMidnight().getDayOfWeek(); > >> return >>getTargetDate().plus(Period.days(daysToEndOfWeek)); >> >> int daysToStartOfWeek; >> daysToStartOfWeek = >> > > getTargetDate().toDateTimeAtMidnight().getDayOfWeek() > >>- 1; >> return >> > > getTargetDate().minus(Period.days(daysToStartOfWeek)); > >> >>-----Original Message----- >>From: Neil.Martin >>Sent: Thursday, November 09, 2006 2:11 PM >>To: [email protected] >>Subject: [Joda-interest] Question: how do you find >>the first day of the week >>given an arbi trary date. >> >>If a date is specified as a YearMonthDay, is there >>some way to determine the >>dates for the beginning and end of that week? >> >>For example 2006-11-09 is a Thursday. The beginning >>of the week using the >>Gregorian chronology is Monday 2006-11-06 and the >>end of the week is Sunday >>2006-11-12. My question is how would I derive >>2006-11-06 (the start of the >>week) and 2006-11-12 (the end of the week) given >>2006-11-09 (or any of >>2006-11-06 to 2006-11-12)? >> >>What I had planned on doing was to first figure out >>the day of the week that >>the given date fell on. >>Once I know what day of the week it is, I can figure >>out how many days it is >>after Monday and before Sunday. >>Then I can generate the date for the Monday and >>Sunday by creating a new >>YearMonthDay from the given YearMonthDay and >>offsetting by a Period of the >>given number of days. >> >>However I can't figure out how to get the given >>dates day of the week as an >>integer. The closest I can seem to get is the >>following: >> >>YearMonthDay ymd; >>ymd = new YearMonthDay(2006, 11, 9); >>X = ymd.getChronology().dayOfWeek(); >> >>This gives the day of the week as a DateTimeField >>but there doesn't seem to >>be a way to determine what day of the week that >>DateTimeField actually is. >>The only int values I can seem to get from the >>DateTimeField (X) are >>getMaximumValue() and getMinimumValue(), but these >>don't help figure out >>what the current value of the field is. There does >>not appear to be any >>getValue() method that returns an int. There are >>constants in >>DateTimeConstants for MONDAY, TUESDAY, ... and >>SUNDAY which are of type int. >>There don't seem to be any constants for the days of >>the week that are >>DateTimeFields. >> >>Am I on the right track? Did I miss some method >>that makes this easy? Can >>someone offer a simple solution? >> >>Neil. >> ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Joda-interest mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/joda-interest ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Joda-interest mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/joda-interest
