Examples of org.joda.time.DateTime.minusMonths()

org.joda.time.DateTime.minusMonths()
Returns a copy of this datetime minus the specified number of months.
The calculation will do its best to only change the month field retaining the same day of month. However, in certain circumstances, it may be necessary to alter smaller fields. For example, 2007-05-31 minus one month cannot result in 2007-04-31, so the day of month is adjusted to 2007-04-30.
The following three lines are identical in effect:
```
 DateTime subtracted = dt.minusMonths(6); DateTime subtracted = dt.minus(Period.months(6)); DateTime subtracted = dt.withFieldAdded(DurationFieldType.months(), -6); 
```
This datetime instance is immutable and unaffected by this method call. @param months the amount of months to subtract, may be negative @return the new datetime minus the increased months @since 1.1

    // NB: cannot handle replaying of old logs or going back to the future
    if (date != null) {
      DateTime fixed = date.withYear(year);


      // flume clock is ahead or there is some latency, and the year rolled
      if (fixed.isAfter(now) && fixed.minusMonths(1).isAfter(now)) {
        fixed = date.withYear(year - 1);
      // flume clock is behind and the year rolled
      } else if (fixed.isBefore(now) && fixed.plusMonths(1).isBefore(now)) {
        fixed = date.withYear(year + 1);
      }

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      case THISWEEK:
        return dt.minusWeeks(1).getMillis();
      case LASTWEEK:
        return dt.minusWeeks(2).getMillis();
      case THISMONTH:
        return dt.minusMonths(1).getMillis();
      case LASTMONTH:
        return dt.minusMonths(2).getMillis();
      case THISYEAR:
        return dt.minusYears(1).getMillis();
      case LASTYEAR:

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      case LASTWEEK:
        return dt.minusWeeks(2).getMillis();
      case THISMONTH:
        return dt.minusMonths(1).getMillis();
      case LASTMONTH:
        return dt.minusMonths(2).getMillis();
      case THISYEAR:
        return dt.minusYears(1).getMillis();
      case LASTYEAR:
        return dt.minusYears(2).getMillis();

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      case LASTWEEK:
        return dt.minusWeeks(1).getMillis();
      case THISMONTH:
        return dt.getMillis();
      case LASTMONTH:
        return dt.minusMonths(1).getMillis();
      case THISYEAR:
        return dt.getMillis();
      case LASTYEAR:
        return dt.minusYears(1).getMillis();

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      DateTime now = new DateTime();
      int year = now.getYear();
      DateTime corrected = date.withYear(year);


      // flume clock is ahead or there is some latency, and the year rolled
      if (corrected.isAfter(now) && corrected.minusMonths(1).isAfter(now)) {
        corrected = date.withYear(year - 1);
      // flume clock is behind and the year rolled
      } else if (corrected.isBefore(now) && corrected.plusMonths(1).isBefore(now)) {
        corrected = date.withYear(year + 1);
      }

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                           1,
                           0,
                           0,
                           0);
      
      firstDateOfMonth = firstDateOfMonth.minusMonths(PeriodSelector.this.numberOfPeriods);
      
      return firstDateOfMonth;
    }
    public DateTime getUpperBound(){
      DateTime lastDateOfMonth = new DateTime(this.year,

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    // NB: cannot handle replaying of old logs or going back to the future
    if (date != null) {
      DateTime fixed = date.withYear(year);


      // flume clock is ahead or there is some latency, and the year rolled
      if (fixed.isAfter(now) && fixed.minusMonths(1).isAfter(now)) {
        fixed = date.withYear(year - 1);
      // flume clock is behind and the year rolled
      } else if (fixed.isBefore(now) && fixed.plusMonths(1).isBefore(now)) {
        fixed = date.withYear(year + 1);
      }

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    // NB: cannot handle replaying of old logs or going back to the future
    if (date != null) {
      DateTime fixed = date.withYear(year);


      // flume clock is ahead or there is some latency, and the year rolled
      if (fixed.isAfter(now) && fixed.minusMonths(1).isAfter(now)) {
        fixed = date.withYear(year - 1);
      // flume clock is behind and the year rolled
      } else if (fixed.isBefore(now) && fixed.plusMonths(1).isBefore(now)) {
        fixed = date.withYear(year + 1);
      }

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            now
        )
    );
    Assert.assertFalse(
        rule.appliesTo(
            builder.interval(new Interval(now.minusMonths(2), now.minusDays(1)))
                       .build(),
            now
        )
    );
  }

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        // ensure there is at least one digit, and exactly one character suffix, and the suffix is a legal option
        if (!ctime.matches("^[0-9]+[yMwdhms]$")) throw new IllegalArgumentException("Invalid option for ctime: "+ctime);


        if (ctime.endsWith("y")) return dateTime.minusYears(getCtimeNumber(ctime)).getMillis();
        if (ctime.endsWith("M")) return dateTime.minusMonths(getCtimeNumber(ctime)).getMillis();
        if (ctime.endsWith("w")) return dateTime.minusWeeks(getCtimeNumber(ctime)).getMillis();
        if (ctime.endsWith("d")) return dateTime.minusDays(getCtimeNumber(ctime)).getMillis();
        if (ctime.endsWith("h")) return dateTime.minusHours(getCtimeNumber(ctime)).getMillis();
        if (ctime.endsWith("m")) return dateTime.minusMinutes(getCtimeNumber(ctime)).getMillis();
        if (ctime.endsWith("s")) return dateTime.minusSeconds(getCtimeNumber(ctime)).getMillis();

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