Package org.joda.time.chrono

Class ISOYearOfEraDateTimeField

java.lang.Object
org.joda.time.DateTimeField
org.joda.time.field.BaseDateTimeField
org.joda.time.field.DecoratedDateTimeField
org.joda.time.chrono.ISOYearOfEraDateTimeField
class ISOYearOfEraDateTimeField extends DecoratedDateTimeField
This field is not publicly exposed by ISOChronology, but rather it is used to build the yearOfCentury and centuryOfEra fields. It merely drops the sign of the year.
Since:
1.0
See Also:

  • Field Details

  • Constructor Details

    • ISOYearOfEraDateTimeField

      private ISOYearOfEraDateTimeField()
      Restricted constructor.

  • Method Details

    • getRangeDurationField

      public DurationField getRangeDurationField()
      Description copied from class: BaseDateTimeField
      Returns the range duration of this field. For example, if this field represents "hour of day", then the range duration is a day.
      Overrides:
      getRangeDurationField in class DecoratedDateTimeField
      Returns:
      the range duration of this field, or null if field has no range

    • get

      public int get(long instant)
      Description copied from class: BaseDateTimeField
      Get the value of this field from the milliseconds.
      Overrides:
      get in class DecoratedDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to query
      Returns:
      the value of the field, in the units of the field

    • add

      public long add(long instant, int years)
      Description copied from class: BaseDateTimeField
      Adds a value (which may be negative) to the instant value, overflowing into larger fields if necessary.

      The value will be added to this field. If the value is too large to be added solely to this field, larger fields will increase as required. Smaller fields should be unaffected, except where the result would be an invalid value for a smaller field. In this case the smaller field is adjusted to be in range.

      For example, in the ISO chronology:
      2000-08-20 add six months is 2001-02-20
      2000-08-20 add twenty months is 2002-04-20
      2000-08-20 add minus nine months is 1999-11-20
      2001-01-31 add one month is 2001-02-28
      2001-01-31 add two months is 2001-03-31

      Overrides:
      add in class BaseDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to add to
      years - the value to add, in the units of the field
      Returns:
      the updated milliseconds

    • add

      public long add(long instant, long years)
      Description copied from class: BaseDateTimeField
      Adds a value (which may be negative) to the instant value, overflowing into larger fields if necessary.
      Overrides:
      add in class BaseDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to add to
      years - the long value to add, in the units of the field
      Returns:
      the updated milliseconds
      See Also:

    • addWrapField

      public long addWrapField(long instant, int years)
      Description copied from class: BaseDateTimeField
      Adds a value (which may be negative) to the instant value, wrapping within this field.

      The value will be added to this field. If the value is too large to be added solely to this field then it wraps. Larger fields are always unaffected. Smaller fields should be unaffected, except where the result would be an invalid value for a smaller field. In this case the smaller field is adjusted to be in range.

      For example, in the ISO chronology:
      2000-08-20 addWrapField six months is 2000-02-20
      2000-08-20 addWrapField twenty months is 2000-04-20
      2000-08-20 addWrapField minus nine months is 2000-11-20
      2001-01-31 addWrapField one month is 2001-02-28
      2001-01-31 addWrapField two months is 2001-03-31

      The default implementation internally calls set. Subclasses are encouraged to provide a more efficient implementation.

      Overrides:
      addWrapField in class BaseDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to add to
      years - the value to add, in the units of the field
      Returns:
      the updated milliseconds

    • addWrapField

      public int[] addWrapField(ReadablePartial instant, int fieldIndex, int[] values, int years)
      Description copied from class: BaseDateTimeField
      Adds a value (which may be negative) to the partial instant, wrapping within this field.

      The value will be added to this field. If the value is too large to be added solely to this field then it wraps. Larger fields are always unaffected. Smaller fields should be unaffected, except where the result would be an invalid value for a smaller field. In this case the smaller field is adjusted to be in range.

      For example, in the ISO chronology:
      2000-08-20 addWrapField six months is 2000-02-20
      2000-08-20 addWrapField twenty months is 2000-04-20
      2000-08-20 addWrapField minus nine months is 2000-11-20
      2001-01-31 addWrapField one month is 2001-02-28
      2001-01-31 addWrapField two months is 2001-03-31

      The default implementation internally calls set. Subclasses are encouraged to provide a more efficient implementation.

      Overrides:
      addWrapField in class BaseDateTimeField
      Parameters:
      instant - the partial instant
      fieldIndex - the index of this field in the instant
      values - the values of the partial instant which should be updated
      years - the value to add, in the units of the field
      Returns:
      the passed in values

    • getDifference

      public int getDifference(long minuendInstant, long subtrahendInstant)
      Description copied from class: BaseDateTimeField
      Computes the difference between two instants, as measured in the units of this field. Any fractional units are dropped from the result. Calling getDifference reverses the effect of calling add. In the following code: 
       long instant = ...
 int v = ...
 int age = getDifference(add(instant, v), instant);
      The value 'age' is the same as the value 'v'.
      Overrides:
      getDifference in class BaseDateTimeField
      Parameters:
      minuendInstant - the milliseconds from 1970-01-01T00:00:00Z to subtract from
      subtrahendInstant - the milliseconds from 1970-01-01T00:00:00Z to subtract off the minuend
      Returns:
      the difference in the units of this field

    • getDifferenceAsLong

      public long getDifferenceAsLong(long minuendInstant, long subtrahendInstant)
      Description copied from class: BaseDateTimeField
      Computes the difference between two instants, as measured in the units of this field. Any fractional units are dropped from the result. Calling getDifference reverses the effect of calling add. In the following code: 
       long instant = ...
 long v = ...
 long age = getDifferenceAsLong(add(instant, v), instant);
      The value 'age' is the same as the value 'v'.
      Overrides:
      getDifferenceAsLong in class BaseDateTimeField
      Parameters:
      minuendInstant - the milliseconds from 1970-01-01T00:00:00Z to subtract from
      subtrahendInstant - the milliseconds from 1970-01-01T00:00:00Z to subtract off the minuend
      Returns:
      the difference in the units of this field

    • set

      public long set(long instant, int year)
      Description copied from class: BaseDateTimeField
      Sets a value in the milliseconds supplied.

      The value of this field will be set. If the value is invalid, an exception if thrown.

      If setting this field would make other fields invalid, then those fields may be changed. For example if the current date is the 31st January, and the month is set to February, the day would be invalid. Instead, the day would be changed to the closest value - the 28th/29th February as appropriate.

      Overrides:
      set in class DecoratedDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to set in
      year - the value to set, in the units of the field
      Returns:
      the updated milliseconds

    • getMinimumValue

      public int getMinimumValue()
      Description copied from class: BaseDateTimeField
      Get the minimum allowable value for this field.
      Overrides:
      getMinimumValue in class DecoratedDateTimeField
      Returns:
      the minimum valid value for this field, in the units of the field

    • getMaximumValue

      public int getMaximumValue()
      Description copied from class: BaseDateTimeField
      Get the maximum allowable value for this field.
      Overrides:
      getMaximumValue in class DecoratedDateTimeField
      Returns:
      the maximum valid value for this field, in the units of the field

    • roundFloor

      public long roundFloor(long instant)
      Description copied from class: BaseDateTimeField
      Round to the lowest whole unit of this field. After rounding, the value of this field and all fields of a higher magnitude are retained. The fractional millis that cannot be expressed in whole increments of this field are set to minimum.

      For example, a datetime of 2002-11-02T23:34:56.789, rounded to the lowest whole hour is 2002-11-02T23:00:00.000.

      Overrides:
      roundFloor in class DecoratedDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to round
      Returns:
      rounded milliseconds

    • roundCeiling

      public long roundCeiling(long instant)
      Description copied from class: BaseDateTimeField
      Round to the highest whole unit of this field. The value of this field and all fields of a higher magnitude may be incremented in order to achieve this result. The fractional millis that cannot be expressed in whole increments of this field are set to minimum.

      For example, a datetime of 2002-11-02T23:34:56.789, rounded to the highest whole hour is 2002-11-03T00:00:00.000.

      The default implementation calls roundFloor, and if the instant is modified as a result, adds one field unit. Subclasses are encouraged to provide a more efficient implementation.

      Overrides:
      roundCeiling in class BaseDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to round
      Returns:
      rounded milliseconds

    • remainder

      public long remainder(long instant)
      Description copied from class: BaseDateTimeField
      Returns the fractional duration milliseconds of this field. In other words, calling remainder returns the duration that roundFloor would subtract.

      For example, on a datetime of 2002-11-02T23:34:56.789, the remainder by hour is 34 minutes and 56.789 seconds.

      The default implementation computes instant - roundFloor(instant). Subclasses are encouraged to provide a more efficient implementation.

      Overrides:
      remainder in class BaseDateTimeField
      Parameters:
      instant - the milliseconds from 1970-01-01T00:00:00Z to get the remainder
      Returns:
      remainder duration, in milliseconds

    • readResolve

      private Object readResolve()
      Serialization singleton