Class GDurationBuilder

All Implemented Interfaces:
Serializable, GDurationSpecification

public class GDurationBuilder
extends Object
implements GDurationSpecification, Serializable
Used to build GDurations.
See Also:
Serialized Form
  • Constructor Details

    • GDurationBuilder

      public GDurationBuilder()
      Constructs an empty GDurationBuilder representing zero seconds.
    • GDurationBuilder

      public GDurationBuilder​(String s)
      Constructs a GDuration from a lexical representation.
    • GDurationBuilder

      public GDurationBuilder​(int sign, int year, int month, int day, int hour, int minute, int second, BigDecimal fraction)
      Constructs a GDurationBuilder with the specified sign, year, month, day, hours, minutes, seconds, and optional fractional seconds.
      sign - +1 for a positive duration, -1 for a negative duration
      IllegalArgumentException - if the sign is not 1 or -1
    • GDurationBuilder

      public GDurationBuilder​(GDurationSpecification gDuration)
      Constructs a GDurationBuilder from another GDurationBuilderSpecification.
  • Method Details

    • clone

      public Object clone()
      Builds another GDurationBuilder with the same value as this one.
      clone in class Object
    • toGDuration

      public GDuration toGDuration()
      Builds a GDuration from this GDurationBuilder.
    • addGDuration

      public void addGDuration​(GDurationSpecification duration)
      Adds to this duration. Does a fieldwise add, with no normalization.
    • subtractGDuration

      public void subtractGDuration​(GDurationSpecification duration)
      Subtracts from this duration. Does a fieldwise subtraction, with no normalization.
    • setSign

      public final void setSign​(int sign)
      Sets the sign.
    • setYear

      public void setYear​(int year)
      Sets the year component.
    • setMonth

      public void setMonth​(int month)
      Sets the month component.
    • setDay

      public void setDay​(int day)
      Sets the day component.
    • setHour

      public void setHour​(int hour)
      Sets the hour component.
    • setMinute

      public void setMinute​(int minute)
      Sets the minute component.
    • setSecond

      public void setSecond​(int second)
      Sets the second component.
    • setFraction

      public void setFraction​(BigDecimal fraction)
      Sets the fraction-of-second component.
    • isImmutable

      public final boolean isImmutable()
      All GDuration instances return true.
      Specified by:
      isImmutable in interface GDurationSpecification
    • getSign

      public final int getSign()
      Returns the sign of the duration: +1 is forwards and -1 is backwards in time. This value does not necessarily reflect the true direction of the duration if the duration is not normalized or not normalizable.
      Specified by:
      getSign in interface GDurationSpecification
    • getYear

      public final int getYear()
      Gets the year component.
      Specified by:
      getYear in interface GDurationSpecification
    • getMonth

      public final int getMonth()
      Gets the month-of-year component.
      Specified by:
      getMonth in interface GDurationSpecification
    • getDay

      public final int getDay()
      Gets the day-of-month component.
      Specified by:
      getDay in interface GDurationSpecification
    • getHour

      public final int getHour()
      Gets the hour-of-day component.
      Specified by:
      getHour in interface GDurationSpecification
    • getMinute

      public final int getMinute()
      Gets the minute-of-hour component.
      Specified by:
      getMinute in interface GDurationSpecification
    • getSecond

      public final int getSecond()
      Gets the second-of-minute component.
      Specified by:
      getSecond in interface GDurationSpecification
    • getFraction

      public BigDecimal getFraction()
      Gets the fraction-of-second. Range from 0 (inclusive) to 1 (exclusive).
      Specified by:
      getFraction in interface GDurationSpecification
    • isValid

      public boolean isValid()
      Returns true if all of the individual components of the duration are nonnegative.
      Specified by:
      isValid in interface GDurationSpecification
    • normalize

      public void normalize()
      Normalize a duration value. This ensures that months, hours, minutes, seconds, and fractions are positive and within the ranges 0..11, 0..23, 0..59, etc. Negative durations are indicated by a negative sign rather than negative components.

      Most duration specifications can be normalized to valid durations with all positive components, but not all of them can.

      The only situations which cannot be normalized are where the year/month and the day/hour/minute/second offsets are of opposite sign. Days cannot be carried into months since the length of a Gregorian month is variable depending on when the duration is applied. In these cases, this method normalizes the components so that "day" is the only negative component.

    • compareToGDuration

      public final int compareToGDuration​(GDurationSpecification duration)
      Comparison to another GDuration.
      • Returns -1 if this < duration. (less-than)
      • Returns 0 if this == duration. (equal)
      • Returns 1 if this > duration. (greater-than)
      • Returns 2 if this <> duration. (incomparable)
      Two instances are incomparable if they have different amounts of information.
      Specified by:
      compareToGDuration in interface GDurationSpecification
    • toString

      public String toString()
      The natural string representation of the duration.

      Any components that are zero are omitted. Note that if the duration is invalid, i.e., it has negative components, those negative components are serialized out here. To check for validity, use the isValid() method; and to normalize most durations to a valid form use the normalize() method.

      toString in class Object
    • toPlainString

      public static String toPlainString​(BigDecimal bd)
    • stripTrailingZeros

      public static String stripTrailingZeros​(String s)