Class InitialTimeZoneRule

java.lang.Object
org.graalvm.shadowed.com.ibm.icu.util.TimeZoneRule
org.graalvm.shadowed.com.ibm.icu.util.InitialTimeZoneRule
All Implemented Interfaces:
Serializable
public class InitialTimeZoneRule extends TimeZoneRule
InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning and has no actual start times.
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    InitialTimeZoneRule(String name, int rawOffset, int dstSavings)
    Constructs a InitialTimeZoneRule with the name, the GMT offset of its standard time and the amount of daylight saving offset adjustment.

  • Method Summary

    Modifier and Type
    Method
    Description
    Date
    getFinalStart(int prevRawOffset, int prevDSTSavings)
    Gets the final time when this rule takes effect.
    Date
    getFirstStart(int prevRawOffset, int prevDSTSavings)
    Gets the very first time when this rule takes effect.
    Date
    getNextStart(long base, int prevRawOffset, int prevDSTSavings, boolean inclusive)
    Gets the first time when this rule takes effect after the specified time.
    Date
    getPreviousStart(long base, int prevRawOffset, int prevDSTSavings, boolean inclusive)
    Gets the most recent time when this rule takes effect before the specified time.
    boolean
    isEquivalentTo(TimeZoneRule other)
    Returns if this rule represents the same rule and offsets as another.
    boolean
    isTransitionRule()
    Returns if this TimeZoneRule has one or more start times.

    Methods inherited from class org.graalvm.shadowed.com.ibm.icu.util.TimeZoneRule

    getDSTSavings, getName, getRawOffset, toString

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • InitialTimeZoneRule

      public InitialTimeZoneRule(String name, int rawOffset, int dstSavings)
      Constructs a InitialTimeZoneRule with the name, the GMT offset of its standard time and the amount of daylight saving offset adjustment.
      Parameters:
      name - The time zone name.
      rawOffset - The UTC offset of its standard time in milliseconds.
      dstSavings - The amount of daylight saving offset adjustment in milliseconds. If this ia a rule for standard time, the value of this argument is 0.

  • Method Details

    • isEquivalentTo

      public boolean isEquivalentTo(TimeZoneRule other)
      Returns if this rule represents the same rule and offsets as another. When two TimeZoneRule objects differ only its names, this method returns true.
      Overrides:
      isEquivalentTo in class TimeZoneRule
      Parameters:
      other - The TimeZoneRule object to be compared with.
      Returns:
      true if the other TimeZoneRule is the same as this one.

    • getFinalStart

      public Date getFinalStart(int prevRawOffset, int prevDSTSavings)
      Gets the final time when this rule takes effect.

      Note: This method in InitialTimeZoneRule always returns null.
      Specified by:
      getFinalStart in class TimeZoneRule
      Parameters:
      prevRawOffset - The standard time offset from UTC before this rule takes effect in milliseconds.
      prevDSTSavings - The amount of daylight saving offset from the standard time.
      Returns:
      The very last time when this rule takes effect, or null if this rule is applied for future dates infinitely.

    • getFirstStart

      public Date getFirstStart(int prevRawOffset, int prevDSTSavings)
      Gets the very first time when this rule takes effect.

      Note: This method in InitialTimeZoneRule always returns null.
      Specified by:
      getFirstStart in class TimeZoneRule
      Parameters:
      prevRawOffset - The standard time offset from UTC before this rule takes effect in milliseconds.
      prevDSTSavings - The amount of daylight saving offset from the standard time.
      Returns:
      The very first time when this rule takes effect.

    • getNextStart

      public Date getNextStart(long base, int prevRawOffset, int prevDSTSavings, boolean inclusive)
      Gets the first time when this rule takes effect after the specified time.

      Note: This method in InitialTimeZoneRule always returns null.
      Specified by:
      getNextStart in class TimeZoneRule
      Parameters:
      base - The first time after this time is returned.
      prevRawOffset - The standard time offset from UTC before this rule takes effect in milliseconds.
      prevDSTSavings - The amount of daylight saving offset from the standard time.
      inclusive - Whether the base time is inclusive or not.
      Returns:
      The first time when this rule takes effect after the specified time, or null when this rule never takes effect after the specified time.

    • getPreviousStart

      public Date getPreviousStart(long base, int prevRawOffset, int prevDSTSavings, boolean inclusive)
      Gets the most recent time when this rule takes effect before the specified time.

      Note: This method in InitialTimeZoneRule always returns null.
      Specified by:
      getPreviousStart in class TimeZoneRule
      Parameters:
      base - The most recent time when this rule takes effect before this time is returned.
      prevRawOffset - The standard time offset from UTC before this rule takes effect in milliseconds.
      prevDSTSavings - The amount of daylight saving offset from the standard time.
      inclusive - Whether the base time is inclusive or not.
      Returns:
      The most recent time when this rule takes effect before the specified time, or null when this rule never takes effect before the specified time.

    • isTransitionRule

      public boolean isTransitionRule()
      Returns if this TimeZoneRule has one or more start times.

      Note: This method in InitialTimeZoneRule always returns false.
      Specified by:
      isTransitionRule in class TimeZoneRule
      Returns:
      true if this TimeZoneRule has one or more start times.