Package org.joda.time

Interface ReadWritableInstant

  • All Superinterfaces:
    java.lang.Comparable<ReadableInstant>, ReadableInstant
    All Known Subinterfaces:
    ReadWritableDateTime
    All Known Implementing Classes:
    MutableDateTime

    public interface ReadWritableInstant
    extends ReadableInstant
    Defines an instant in the datetime continuum that can be queried and modified. This interface expresses the datetime as milliseconds from 1970-01-01T00:00:00Z.

    The implementation of this interface will be mutable. It may provide more advanced methods than those in the interface.

    Since:
    1.0
    • Method Detail

      • setMillis

        void setMillis​(long instant)
        Sets the value as the number of milliseconds since the epoch, 1970-01-01T00:00:00Z.
        Parameters:
        instant - the milliseconds since 1970-01-01T00:00:00Z to set the instant to
        Throws:
        java.lang.IllegalArgumentException - if the value is invalid
      • setMillis

        void setMillis​(ReadableInstant instant)
        Sets the millisecond instant of this instant from another.

        This method does not change the chronology of this instant, just the millisecond instant.

        Parameters:
        instant - the instant to use, null means now
      • setChronology

        void setChronology​(Chronology chronology)
        Sets the chronology of the datetime, which has no effect if not applicable.
        Parameters:
        chronology - the chronology to use, null means ISOChronology in default zone
        Throws:
        java.lang.IllegalArgumentException - if the value is invalid
      • setZone

        void setZone​(DateTimeZone zone)
        Sets the time zone of the datetime, changing the chronology and field values.

        Changing the zone using this method retains the millisecond instant. The millisecond instant is adjusted in the new zone to compensate. chronology. Setting the time zone does not affect the millisecond value of this instant.

        If the chronology already has this time zone, no change occurs.

        Parameters:
        zone - the time zone to use, null means default zone
        See Also:
        setZoneRetainFields(org.joda.time.DateTimeZone)
      • setZoneRetainFields

        void setZoneRetainFields​(DateTimeZone zone)
        Sets the time zone of the datetime, changing the chronology and millisecond.

        Changing the zone using this method retains the field values. The millisecond instant is adjusted in the new zone to compensate.

        If the chronology already has this time zone, no change occurs.

        Parameters:
        zone - the time zone to use, null means default zone
        See Also:
        setZone(org.joda.time.DateTimeZone)
      • add

        void add​(long duration)
        Adds a millisecond duration to this instant.

        This will typically change the value of ost fields.

        Parameters:
        duration - the millis to add
        Throws:
        java.lang.IllegalArgumentException - if the value is invalid
      • add

        void add​(ReadableDuration duration)
        Adds a duration to this instant.

        This will typically change the value of most fields.

        Parameters:
        duration - the duration to add, null means add zero
        Throws:
        java.lang.ArithmeticException - if the result exceeds the capacity of the instant
      • add

        void add​(ReadableDuration duration,
                 int scalar)
        Adds a duration to this instant specifying how many times to add.

        This will typically change the value of most fields.

        Parameters:
        duration - the duration to add, null means add zero
        scalar - direction and amount to add, which may be negative
        Throws:
        java.lang.ArithmeticException - if the result exceeds the capacity of the instant
      • add

        void add​(ReadablePeriod period)
        Adds a period to this instant.

        This will typically change the value of most fields.

        Parameters:
        period - the period to add, null means add zero
        Throws:
        java.lang.ArithmeticException - if the result exceeds the capacity of the instant
      • add

        void add​(ReadablePeriod period,
                 int scalar)
        Adds a period to this instant specifying how many times to add.

        This will typically change the value of most fields.

        Parameters:
        period - the period to add, null means add zero
        scalar - direction and amount to add, which may be negative
        Throws:
        java.lang.ArithmeticException - if the result exceeds the capacity of the instant
      • set

        void set​(DateTimeFieldType type,
                 int value)
        Sets the value of one of the fields of the instant, such as hourOfDay.
        Parameters:
        type - a field type, usually obtained from DateTimeFieldType, null ignored
        value - the value to set the field to
        Throws:
        java.lang.IllegalArgumentException - if the value is invalid
      • add

        void add​(DurationFieldType type,
                 int amount)
        Adds to the instant specifying the duration and multiple to add.
        Parameters:
        type - a field type, usually obtained from DateTimeFieldType, null ignored
        amount - the amount to add of this duration
        Throws:
        java.lang.ArithmeticException - if the result exceeds the capacity of the instant