Package com.helger.commons.datetime

Class XMLOffsetDate

java.lang.Object
com.helger.commons.datetime.XMLOffsetDate
All Implemented Interfaces:
Serializable, Comparable<XMLOffsetDate>, Temporal, TemporalAccessor, TemporalAdjuster
@Immutable public class XMLOffsetDate extends Object implements Temporal, TemporalAdjuster, Comparable<XMLOffsetDate>, Serializable
Copyright (c) 2007-present, Stephen Colebourne & Michael Nascimento Santos.
This class is based on the class OffsetDate but the Timezone offset is optional - it may behave like a regular LocalDate

A date with an offset from UTC/Greenwich in the ISO-8601 calendar system, such as 2007-12-03+01:00.

XMLOffsetDate is an immutable date-time object that represents a date, often viewed as year-month-day-offset. This object can also access other date fields such as day-of-year, day-of-week and week-of-year.

This class does not store or represent a time. For example, the value "2nd October 2007 +02:00" can be stored in an XMLOffsetDate. Implementation Requirements: This class is immutable and thread-safe.

This class must be treated as a value type. Do not synchronize, rely on the identity hash code or use the distinction between equals() and ==.

Since:
v10.1
See Also:

  • Field Details

    • MIN

      public static final XMLOffsetDate MIN
      The minimum supported XMLOffsetDate, '-999999999-01-01+18:00'. This is the minimum local date in the maximum offset (larger offsets are earlier on the time-line). This combines LocalDate.MIN and ZoneOffset.MAX. This could be used by an application as a "far past" date.

    • MAX

      public static final XMLOffsetDate MAX
      The maximum supported XMLOffsetDate, '+999999999-12-31-18:00'. This is the maximum local date in the minimum offset (larger negative offsets are later on the time-line). This combines LocalDate.MAX and ZoneOffset.MIN. This could be used by an application as a "far future" date.

  • Constructor Details

    • XMLOffsetDate

      protected XMLOffsetDate(@Nonnull LocalDate date, @Nullable ZoneOffset offset)
      Constructor.
      Parameters:
      date - the local date, not null
      offset - the zone offset, not null

  • Method Details

    • now

      @Nonnull public static XMLOffsetDate now()
      Obtains the current date from the system clock in the default time-zone.

      This will query the system clock in the default time-zone to obtain the current date. The offset will be calculated from the time-zone in the clock.

      Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.

      Returns:
      the current date using the system clock, not null

    • now

      @Nonnull public static XMLOffsetDate now(@Nonnull ZoneId zone)
      Obtains the current date from the system clock in the specified time-zone.

      This will query the system clock to obtain the current date. Specifying the time-zone avoids dependence on the default time-zone. The offset will be calculated from the specified time-zone.

      Using this method will prevent the ability to use an alternate clock for testing because the clock is hard-coded.

      Parameters:
      zone - the zone ID to use, not null
      Returns:
      the current date using the system clock, not null

    • now

      @Nonnull public static XMLOffsetDate now(@Nonnull Clock clock)
      Obtains the current date from the specified clock.

      This will query the specified clock to obtain the current date - today. The offset will be calculated from the time-zone in the clock.

      Using this method allows the use of an alternate clock for testing. The alternate clock may be introduced using dependency injection.

      Parameters:
      clock - the clock to use, not null
      Returns:
      the current date, not null

    • of

      @Nonnull public static XMLOffsetDate of(@Nonnull LocalDate date)
      Obtains an instance of XMLOffsetDate from a local date and not zone offset.
      Parameters:
      date - the local date, not null
      Returns:
      the offset date, not null
      Since:
      11.0.0

    • of

      @Nonnull public static XMLOffsetDate of(@Nonnull LocalDate date, @Nullable ZoneOffset offset)
      Obtains an instance of XMLOffsetDate from a local date and an offset.
      Parameters:
      date - the local date, not null
      offset - the zone offset, may be null
      Returns:
      the offset date, not null

    • of

      @Nonnull public static XMLOffsetDate of(@Nonnull OffsetDate ofsDate)

    • of

      @Nonnull public static XMLOffsetDate of(int year, int month, int dayOfMonth, @Nullable ZoneOffset offset)
      Obtains an instance of XMLOffsetDate from a year, month, day and offset.

      This creates an offset date with the four specified fields.

      This method exists primarily for writing test cases. Non test-code will typically use other methods to create an offset time.

      Parameters:
      year - the year to represent, from MIN_YEAR to MAX_YEAR
      month - the month-of-year to represent, from 1 (January) to 12 (December)
      dayOfMonth - the day-of-month to represent, from 1 to 31
      offset - the zone offset, may be null
      Returns:
      the offset date, not null
      Throws:
      DateTimeException - if the value of any field is out of range, or if the day-of-month is invalid for the month-year

    • of

      @Nonnull public static XMLOffsetDate of(int year, Month month, int dayOfMonth, @Nullable ZoneOffset offset)
      Obtains an instance of XMLOffsetDate from a year, month, day and offset.

      This creates an offset date with the four specified fields.

      This method exists primarily for writing test cases. Non test-code will typically use other methods to create an offset time.

      Parameters:
      year - the year to represent, from MIN_YEAR to MAX_YEAR
      month - the month-of-year to represent, from 1 (January) to 12 (December)
      dayOfMonth - the day-of-month to represent, from 1 to 31
      offset - the zone offset, may be null
      Returns:
      the offset date, not null
      Throws:
      DateTimeException - if the value of any field is out of range, or if the day-of-month is invalid for the month-year

    • ofInstant

      @Nonnull public static XMLOffsetDate ofInstant(@Nonnull Instant instant, @Nonnull ZoneId zone)
      Obtains an instance of XMLOffsetDate from an Instant and zone ID.

      This creates an offset date with the same instant as midnight at the start of day of the instant specified. Finding the offset from UTC/Greenwich is simple as there is only one valid offset for each instant.

      Parameters:
      instant - the instant to create the time from, not null
      zone - the time-zone, which may be an offset, not null
      Returns:
      the offset time, not null

    • from

      @Nonnull public static XMLOffsetDate from(@Nonnull TemporalAccessor temporal)
      Obtains an instance of XMLOffsetDate from a temporal object.

      A TemporalAccessor represents some form of date and time information. This factory converts the arbitrary temporal object to an instance of XMLOffsetDate.

      The conversion extracts and combines LocalDate and ZoneOffset.

      This method matches the signature of the functional interface TemporalQuery allowing it to be used in queries via method reference, XMLOffsetDate::from.

      Parameters:
      temporal - the temporal object to convert, not null
      Returns:
      the offset date, not null
      Throws:
      DateTimeException - if unable to convert to an XMLOffsetDate

    • parse

      @Nonnull public static XMLOffsetDate parse(@Nonnull CharSequence text)
      Obtains an instance of XMLOffsetDate from a text string such as 2007-12-03+01:00.

      The string must represent a valid date and is parsed using DateTimeFormatter.ISO_DATE.

      Parameters:
      text - the text to parse such as "2007-12-03+01:00", not null
      Returns:
      the parsed offset date, not null
      Throws:
      DateTimeParseException - if the text cannot be parsed

    • parse

      @Nonnull public static XMLOffsetDate parse(@Nonnull CharSequence sText, @Nonnull DateTimeFormatter aFormatter)
      Obtains an instance of XMLOffsetDate from a text string using a specific formatter.

      The text is parsed using the formatter, returning a date.

      Parameters:
      sText - the text to parse, not null.
      aFormatter - the formatter to use, not null.
      Returns:
      the parsed offset date, not null.
      Throws:
      DateTimeParseException - if the text cannot be parsed

    • isSupported

      public boolean isSupported(@Nullable TemporalField field)
      Checks if the specified field is supported.

      This checks if this date can be queried for the specified field. If false, then calling the range, get and with(TemporalField, long) methods will throw an exception.

      If the field is a ChronoField then the query is implemented here. The supported fields are:

      • DAY_OF_WEEK
      • ALIGNED_DAY_OF_WEEK_IN_MONTH
      • ALIGNED_DAY_OF_WEEK_IN_YEAR
      • DAY_OF_MONTH
      • DAY_OF_YEAR
      • EPOCH_DAY
      • ALIGNED_WEEK_OF_MONTH
      • ALIGNED_WEEK_OF_YEAR
      • MONTH_OF_YEAR
      • PROLEPTIC_MONTH
      • YEAR_OF_ERA
      • YEAR
      • ERA
      • OFFSET_SECONDS
      All other ChronoField instances will return false.

      If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.isSupportedBy(TemporalAccessor) passing this as the argument. Whether the field is supported is determined by the field.

      Specified by:
      isSupported in interface TemporalAccessor
      Parameters:
      field - the field to check, null returns false
      Returns:
      true if the field is supported on this date, false if not

    • isSupported

      public boolean isSupported(@Nullable TemporalUnit unit)
      Checks if the specified unit is supported.

      This checks if the specified unit can be added to, or subtracted from, this date. If false, then calling the plus(long, TemporalUnit) and minus methods will throw an exception.

      If the unit is a ChronoUnit then the query is implemented here. The supported units are:

      • DAYS
      • WEEKS
      • MONTHS
      • YEARS
      • DECADES
      • CENTURIES
      • MILLENNIA
      • ERAS
      All other ChronoUnit instances will return false.

      If the unit is not a ChronoUnit, then the result of this method is obtained by invoking TemporalUnit.isSupportedBy(Temporal) passing this as the argument. Whether the unit is supported is determined by the unit.

      Specified by:
      isSupported in interface Temporal
      Parameters:
      unit - the unit to check, null returns false
      Returns:
      true if the unit can be added/subtracted, false if not

    • range

      public ValueRange range(@Nonnull TemporalField field)
      Gets the range of valid values for the specified field.

      The range object expresses the minimum and maximum valid values for a field. This date is used to enhance the accuracy of the returned range. If it is not possible to return the range, because the field is not supported or for some other reason, an exception is thrown.

      If the field is a ChronoField then the query is implemented here. The supported fields will return appropriate range instances. All other ChronoField instances will throw an UnsupportedTemporalTypeException.

      If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.rangeRefinedBy(TemporalAccessor) passing this as the argument. Whether the range can be obtained is determined by the field.

      Specified by:
      range in interface TemporalAccessor
      Parameters:
      field - the field to query the range for, not null
      Returns:
      the range of valid values for the field, not null
      Throws:
      DateTimeException - if the range for the field cannot be obtained
      UnsupportedTemporalTypeException - if the field is not supported

    • get

      public int get(@Nonnull TemporalField field)
      Gets the value of the specified field from this date as an int.

      This queries this date for the value for the specified field. The returned value will always be within the valid range of values for the field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.

      If the field is a ChronoField then the query is implemented here. The supported fields will return valid values based on this date, except EPOCH_DAY and PROLEPTIC_MONTH which are too large to fit in an int and throw a DateTimeException. All other ChronoField instances will throw a DateTimeException.

      If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom(TemporalAccessor) passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.

      Specified by:
      get in interface TemporalAccessor
      Parameters:
      field - the field to get, not null
      Returns:
      the value for the field
      Throws:
      DateTimeException - if a value for the field cannot be obtained or the value is outside the range of valid values for the field
      UnsupportedTemporalTypeException - if the field is not supported or the range of values exceeds an int
      ArithmeticException - if numeric overflow occurs

    • getLong

      public long getLong(@Nonnull TemporalField field)
      Gets the value of the specified field from this date as a long.

      This queries this date for the value for the specified field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.

      If the field is a ChronoField then the query is implemented here. The supported fields will return valid values based on this date. All other ChronoField instances will throw an UnsupportedTemporalTypeException.

      If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom(TemporalAccessor) passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.

      Specified by:
      getLong in interface TemporalAccessor
      Parameters:
      field - the field to get, not null
      Returns:
      the value for the field
      Throws:
      DateTimeException - if a value for the field cannot be obtained
      UnsupportedTemporalTypeException - if the field is not supported
      ArithmeticException - if numeric overflow occurs

    • getOffset

      @Nullable public ZoneOffset getOffset()
      Gets the zone offset, such as '+01:00'.

      This is the offset of the local date from UTC/Greenwich.

      Returns:
      the zone offset, maybe null

    • hasOffset

      public boolean hasOffset()
      Returns:
      true if this date has a zone offset, false if not.

    • withOffsetSameLocal

      @Nonnull public XMLOffsetDate withOffsetSameLocal(@Nullable ZoneOffset offset)
      Returns a copy of this XMLOffsetDate with the specified offset ensuring that the result has the same local date.

      This method returns an object with the same LocalDate and the specified ZoneOffset. No calculation is needed or performed. For example, if this time represents 2007-12-03+02:00 and the offset specified is +03:00, then this method will return 2007-12-03+03:00.

      This instance is immutable and unaffected by this method call.

      Parameters:
      offset - the zone offset to change to, may be null
      Returns:
      an XMLOffsetDate based on this date with the requested offset, not null

    • toLocalDate

      @Nonnull public LocalDate toLocalDate()
      Gets the LocalDate part of this date.

      This returns a LocalDate with the same year, month and day as this date.

      Returns:
      the date part of this date, not null

    • getYear

      public int getYear()
      Gets the year field.

      This method returns the primitive int value for the year.

      The year returned by this method is proleptic as per get(YEAR). To obtain the year-of-era, use get(YEAR_OF_ERA).

      Returns:
      the year, from MIN_YEAR to MAX_YEAR

    • getMonthValue

      public int getMonthValue()
      Gets the month-of-year field from 1 to 12.

      This method returns the month as an int from 1 to 12. Application code is frequently clearer if the enum Month is used by calling getMonth().

      Returns:
      the month-of-year, from 1 to 12
      See Also:

    • getMonth

      @Nonnull public Month getMonth()
      Gets the month-of-year field using the Month enum.

      This method returns the enum Month for the month. This avoids confusion as to what int values mean. If you need access to the primitive int value then the enum provides the int value.

      Returns:
      the month-of-year, not null
      See Also:

    • getDayOfMonth

      public int getDayOfMonth()
      Gets the day-of-month field.

      This method returns the primitive int value for the day-of-month.

      Returns:
      the day-of-month, from 1 to 31

    • getDayOfYear

      public int getDayOfYear()
      Gets the day-of-year field.

      This method returns the primitive int value for the day-of-year.

      Returns:
      the day-of-year, from 1 to 365, or 366 in a leap year

    • getDayOfWeek

      @Nonnull public DayOfWeek getDayOfWeek()
      Gets the day-of-week field, which is an enum DayOfWeek.

      This method returns the enum DayOfWeek for the day-of-week. This avoids confusion as to what int values mean. If you need access to the primitive int value then the enum provides the int value.

      Additional information can be obtained from the DayOfWeek. This includes textual names of the values.

      Returns:
      the day-of-week, not null

    • with

      @Nonnull public XMLOffsetDate with(@Nonnull TemporalAdjuster adjuster)
      Returns an adjusted copy of this date.

      This returns an XMLOffsetDate based on this one, with the date adjusted. The adjustment takes place using the specified adjuster strategy object. Read the documentation of the adjuster to understand what adjustment will be made.

      A simple adjuster might simply set the one of the fields, such as the year field. A more complex adjuster might set the date to the last day of the month. A selection of common adjustments is provided in TemporalAdjusters. These include finding the "last day of the month" and "next Wednesday". Key date-time classes also implement the TemporalAdjuster interface, such as Month and MonthDay. The adjuster is responsible for handling special cases, such as the varying lengths of month and leap years.

      For example this code returns a date on the last day of July: 

        import static java.time.Month.*;
  import static java.time.temporal.TemporalAdjusters.*;

  result = offsetDate.with(JULY).with(lastDayOfMonth());

      The classes LocalDate and ZoneOffset implement TemporalAdjuster, thus this method can be used to change the date or offset: 

       result = offsetDate.with (date);
 result = offsetDate.with (offset);

      The result of this method is obtained by invoking the TemporalAdjuster.adjustInto(Temporal) method on the specified adjuster passing this as the argument.

      This instance is immutable and unaffected by this method call.

      Specified by:
      with in interface Temporal
      Parameters:
      adjuster - the adjuster to use, not null
      Returns:
      an XMLOffsetDate based on this with the adjustment made, not null
      Throws:
      DateTimeException - if the adjustment cannot be made
      ArithmeticException - if numeric overflow occurs

    • with

      @Nonnull public XMLOffsetDate with(@Nonnull TemporalField field, long newValue)
      Returns a copy of this date with the specified field set to a new value.

      This returns an XMLOffsetDate based on this one, with the value for the specified field changed. This can be used to change any supported field, such as the year, month or day-of-month. If it is not possible to set the value, because the field is not supported or for some other reason, an exception is thrown.

      In some cases, changing the specified field can cause the resulting date to become invalid, such as changing the month from 31st January to February would make the day-of-month invalid. In cases like this, the field is responsible for resolving the date. Typically it will choose the previous valid date, which would be the last valid day of February in this example.

      If the field is a ChronoField then the adjustment is implemented here.

      The OFFSET_SECONDS field will return a date with the specified offset. The local date is unaltered. If the new offset value is outside the valid range then a DateTimeException will be thrown.

      The other supported fields will behave as per the matching method on LocalDate.with(TemporalField, long) LocalDate}. In this case, the offset is not part of the calculation and will be unchanged.

      All other ChronoField instances will throw an UnsupportedTemporalTypeException.

      If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.adjustInto(Temporal, long) passing this as the argument. In this case, the field determines whether and how to adjust the instant.

      This instance is immutable and unaffected by this method call.

      Specified by:
      with in interface Temporal
      Parameters:
      field - the field to set in the result, not null
      newValue - the new value of the field in the result
      Returns:
      an XMLOffsetDate based on this with the specified field set, not null
      Throws:
      DateTimeException - if the field cannot be set
      UnsupportedTemporalTypeException - if the field is not supported
      ArithmeticException - if numeric overflow occurs

    • withYear

      @Nonnull public XMLOffsetDate withYear(int year)
      Returns a copy of this XMLOffsetDate with the year altered.

      The offset does not affect the calculation and will be the same in the result. If the day-of-month is invalid for the year, it will be changed to the last valid day of the month.

      This instance is immutable and unaffected by this method call.

      Parameters:
      year - the year to set in the result, from MIN_YEAR to MAX_YEAR
      Returns:
      an XMLOffsetDate based on this date with the requested year, not null
      Throws:
      DateTimeException - if the year value is invalid

    • withMonth

      @Nonnull public XMLOffsetDate withMonth(int month)
      Returns a copy of this XMLOffsetDate with the month-of-year altered.

      The offset does not affect the calculation and will be the same in the result. If the day-of-month is invalid for the year, it will be changed to the last valid day of the month.

      This instance is immutable and unaffected by this method call.

      Parameters:
      month - the month-of-year to set in the result, from 1 (January) to 12 (December)
      Returns:
      an XMLOffsetDate based on this date with the requested month, not null
      Throws:
      DateTimeException - if the month-of-year value is invalid

    • withDayOfMonth

      @Nonnull public XMLOffsetDate withDayOfMonth(int dayOfMonth)
      Returns a copy of this XMLOffsetDate with the day-of-month altered.

      If the resulting date is invalid, an exception is thrown. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      dayOfMonth - the day-of-month to set in the result, from 1 to 28-31
      Returns:
      an XMLOffsetDate based on this date with the requested day, not null
      Throws:
      DateTimeException - if the day-of-month value is invalid, or if the day-of-month is invalid for the month-year

    • withDayOfYear

      @Nonnull public XMLOffsetDate withDayOfYear(int dayOfYear)
      Returns a copy of this XMLOffsetDate with the day-of-year altered.

      If the resulting date is invalid, an exception is thrown.

      This instance is immutable and unaffected by this method call.

      Parameters:
      dayOfYear - the day-of-year to set in the result, from 1 to 365-366
      Returns:
      an XMLOffsetDate based on this date with the requested day, not null
      Throws:
      DateTimeException - if the day-of-year value is invalid, or if the day-of-year is invalid for the year

    • plus

      @Nonnull public XMLOffsetDate plus(@Nonnull TemporalAmount amountToAdd)
      Returns a copy of this date with the specified period added.

      This returns an XMLOffsetDate based on this one, with the specified amount added. The amount is typically Period but may be any other type implementing the TemporalAmount interface.

      This uses TemporalAmount.addTo(Temporal) to perform the calculation.

      This instance is immutable and unaffected by this method call.

      Specified by:
      plus in interface Temporal
      Parameters:
      amountToAdd - the amount to add, not null
      Returns:
      an XMLOffsetDate based on this date with the addition made, not null
      Throws:
      DateTimeException - if the addition cannot be made
      ArithmeticException - if numeric overflow occurs

    • plus

      @Nonnull public XMLOffsetDate plus(long amountToAdd, @Nonnull TemporalUnit unit)
      Returns a copy of this date with the specified amount added.

      This returns an XMLOffsetDate based on this one, with the amount in terms of the unit added. If it is not possible to add the amount, because the unit is not supported or for some other reason, an exception is thrown.

      If the field is a ChronoUnit then the addition is implemented by LocalDate.plus(long, TemporalUnit). The offset is not part of the calculation and will be unchanged in the result.

      If the field is not a ChronoUnit, then the result of this method is obtained by invoking TemporalUnit.addTo(Temporal, long) passing this as the argument. In this case, the unit determines whether and how to perform the addition.

      This instance is immutable and unaffected by this method call.

      Specified by:
      plus in interface Temporal
      Parameters:
      amountToAdd - the amount of the unit to add to the result, may be negative
      unit - the unit of the amount to add, not null
      Returns:
      an XMLOffsetDate based on this date with the specified amount added, not null
      Throws:
      DateTimeException - if the addition cannot be made
      UnsupportedTemporalTypeException - if the unit is not supported
      ArithmeticException - if numeric overflow occurs

    • plusYears

      @Nonnull public XMLOffsetDate plusYears(long years)
      Returns a copy of this XMLOffsetDate with the specified number of years added.

      This uses LocalDate.plusYears(long) to add the years. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      years - the years to add, may be negative
      Returns:
      an XMLOffsetDate based on this date with the years added, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • plusMonths

      @Nonnull public XMLOffsetDate plusMonths(long months)
      Returns a copy of this XMLOffsetDate with the specified number of months added.

      This uses LocalDate.plusMonths(long) to add the months. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      months - the months to add, may be negative
      Returns:
      an XMLOffsetDate based on this date with the months added, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • plusWeeks

      @Nonnull public XMLOffsetDate plusWeeks(long weeks)
      Returns a copy of this XMLOffsetDate with the specified number of weeks added.

      This uses LocalDate.plusWeeks(long) to add the weeks. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      weeks - the weeks to add, may be negative
      Returns:
      an XMLOffsetDate based on this date with the weeks added, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • plusDays

      @Nonnull public XMLOffsetDate plusDays(long days)
      Returns a copy of this XMLOffsetDate with the specified number of days added.

      This uses LocalDate.plusDays(long) to add the days. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      days - the days to add, may be negative
      Returns:
      an XMLOffsetDate based on this date with the days added, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • minus

      @Nonnull public XMLOffsetDate minus(@Nonnull TemporalAmount amountToSubtract)
      Returns a copy of this date with the specified amount subtracted.

      This returns am XMLOffsetDate based on this one, with the specified amount subtracted. The amount is typically Period but may be any other type implementing the TemporalAmount interface.

      This uses TemporalAmount.subtractFrom(Temporal) to perform the calculation.

      This instance is immutable and unaffected by this method call.

      Specified by:
      minus in interface Temporal
      Parameters:
      amountToSubtract - the amount to subtract, not null
      Returns:
      an XMLOffsetDate based on this date with the subtraction made, not null
      Throws:
      DateTimeException - if the subtraction cannot be made
      ArithmeticException - if numeric overflow occurs

    • minus

      @Nonnull public XMLOffsetDate minus(long amountToSubtract, @Nonnull TemporalUnit unit)
      Returns a copy of this date with the specified amount subtracted.

      This returns an XMLOffsetDate based on this one, with the amount in terms of the unit subtracted. If it is not possible to subtract the amount, because the unit is not supported or for some other reason, an exception is thrown.

      This method is equivalent to plus(long, TemporalUnit) with the amount negated. See that method for a full description of how addition, and thus subtraction, works.

      This instance is immutable and unaffected by this method call.

      Specified by:
      minus in interface Temporal
      Parameters:
      amountToSubtract - the amount of the unit to subtract from the result, may be negative
      unit - the unit of the amount to subtract, not null
      Returns:
      an XMLOffsetDate based on this date with the specified amount subtracted, not null
      Throws:
      DateTimeException - if the subtraction cannot be made
      UnsupportedTemporalTypeException - if the unit is not supported
      ArithmeticException - if numeric overflow occurs

    • minusYears

      @Nonnull public XMLOffsetDate minusYears(long years)
      Returns a copy of this XMLOffsetDate with the specified number of years subtracted.

      This uses LocalDate.minusYears(long) to subtract the years. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      years - the years to subtract, may be negative
      Returns:
      an XMLOffsetDate based on this date with the years subtracted, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • minusMonths

      @Nonnull public XMLOffsetDate minusMonths(long months)
      Returns a copy of this XMLOffsetDate with the specified number of months subtracted.

      This uses LocalDate.minusMonths(long) to subtract the months. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      months - the months to subtract, may be negative
      Returns:
      an XMLOffsetDate based on this date with the months subtracted, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • minusWeeks

      @Nonnull public XMLOffsetDate minusWeeks(long weeks)
      Returns a copy of this XMLOffsetDate with the specified number of weeks subtracted.

      This uses LocalDate.minusWeeks(long) to subtract the weeks. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      weeks - the weeks to subtract, may be negative
      Returns:
      an XMLOffsetDate based on this date with the weeks subtracted, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • minusDays

      @Nonnull public XMLOffsetDate minusDays(long days)
      Returns a copy of this XMLOffsetDate with the specified number of days subtracted.

      This uses LocalDate.minusDays(long) to subtract the days. The offset does not affect the calculation and will be the same in the result.

      This instance is immutable and unaffected by this method call.

      Parameters:
      days - the days to subtract, may be negative
      Returns:
      an XMLOffsetDate based on this date with the days subtracted, not null
      Throws:
      DateTimeException - if the result exceeds the supported date range

    • query

      @Nonnull public <R> R query(@Nonnull TemporalQuery<R> query)
      Queries this date using the specified query.

      This queries this date using the specified query strategy object. The TemporalQuery object defines the logic to be used to obtain the result. Read the documentation of the query to understand what the result of this method will be.

      The result of this method is obtained by invoking the TemporalQuery.queryFrom(TemporalAccessor) method on the specified query passing this as the argument.

      Specified by:
      query in interface TemporalAccessor
      Type Parameters:
      R - the type of the result
      Parameters:
      query - the query to invoke, not null
      Returns:
      the query result, null may be returned (defined by the query)
      Throws:
      DateTimeException - if unable to query (defined by the query)
      ArithmeticException - if numeric overflow occurs (defined by the query)

    • adjustInto

      public Temporal adjustInto(@Nonnull Temporal temporal)
      Adjusts the specified temporal object to have the same offset and date as this object.

      This returns a temporal object of the same observable type as the input with the offset and date changed to be the same as this.

      The adjustment is equivalent to using Temporal.with(TemporalField, long) twice, passing ChronoField.OFFSET_SECONDS and ChronoField.EPOCH_DAY as the fields.

      In most cases, it is clearer to reverse the calling pattern by using Temporal.with(TemporalAdjuster): 

       // these two lines are equivalent, but the second approach is recommended
 temporal = thisOffsetDate.adjustInto (temporal);
 temporal = temporal.with (thisOffsetDate);

      This instance is immutable and unaffected by this method call.

      Specified by:
      adjustInto in interface TemporalAdjuster
      Parameters:
      temporal - the target object to be adjusted, not null
      Returns:
      the adjusted object, not null
      Throws:
      DateTimeException - if unable to make the adjustment
      ArithmeticException - if numeric overflow occurs

    • until

      public long until(@Nonnull Temporal endExclusive, @Nonnull TemporalUnit unit)
      Calculates the period between this date and another date in terms of the specified unit.

      This calculates the period between two dates in terms of a single unit. The start and end points are this and the specified date. The result will be negative if the end is before the start. For example, the period in days between two dates can be calculated using startDate.until(endDate, DAYS).

      The Temporal passed to this method is converted to a XMLOffsetDate using from(TemporalAccessor). If the offset differs between the two times, then the specified end time is normalized to have the same offset as this time.

      The calculation returns a whole number, representing the number of complete units between the two dates. For example, the period in months between 2012-06-15Z and 2012-08-14Z will only be one month as it is one day short of two months.

      There are two equivalent ways of using this method. The first is to invoke this method. The second is to use TemporalUnit.between(Temporal, Temporal): 

       // these two lines are equivalent
 amount = start.until (end, DAYS);
 amount = DAYS.between (start, end);
      The choice should be made based on which makes the code more readable.

      The calculation is implemented in this method for ChronoUnit. The units DAYS, WEEKS, MONTHS, YEARS, DECADES, CENTURIES, MILLENNIA and ERAS are supported. Other ChronoUnit values will throw an exception.

      If the unit is not a ChronoUnit, then the result of this method is obtained by invoking TemporalUnit.between(Temporal, Temporal) passing this as the first argument and the converted input temporal as the second argument.

      This instance is immutable and unaffected by this method call.

      Specified by:
      until in interface Temporal
      Parameters:
      endExclusive - the end time, exclusive, which is converted to an XMLOffsetDate, not null
      unit - the unit to measure the amount in, not null
      Returns:
      the amount of time between this date and the end date
      Throws:
      DateTimeException - if the amount cannot be calculated, or the end temporal cannot be converted to an XMLOffsetDate
      UnsupportedTemporalTypeException - if the unit is not supported
      ArithmeticException - if numeric overflow occurs

    • format

      @Nonnull public String format(@Nonnull DateTimeFormatter formatter)
      Formats this date using the specified formatter.

      This date will be passed to the formatter to produce a string.

      Parameters:
      formatter - the formatter to use, not null
      Returns:
      the formatted date string, not null
      Throws:
      DateTimeException - if an error occurs during printing

    • getOffsetOrDefault

      @Nonnull protected ZoneOffset getOffsetOrDefault()

    • atTime

      @Nonnull public OffsetDateTime atTime(@Nonnull LocalTime aTime)
      Returns an offset date-time formed from this date at the specified time.

      This combines this date with the specified time to form an OffsetDateTime. All possible combinations of date and time are valid.

      This instance is immutable and unaffected by this method call.

      Parameters:
      aTime - the time to combine with, not null
      Returns:
      the offset date-time formed from this date and the specified time, not null

    • atXMLTime

      @Nonnull public XMLOffsetDateTime atXMLTime(@Nonnull LocalTime aTime)
      Returns an offset date-time formed from this date at the specified time.

      This combines this date with the specified time to form an OffsetDateTime. All possible combinations of date and time are valid.

      This instance is immutable and unaffected by this method call.

      Parameters:
      aTime - the time to combine with, not null
      Returns:
      the offset date-time formed from this date and the specified time, not null

    • toEpochSecond

      protected long toEpochSecond()
      Converts this date to midnight at the start of day in epoch seconds.
      Returns:
      the epoch seconds value

    • toEpochSecond

      public long toEpochSecond(@Nonnull LocalTime time)
      Converts this XMLOffsetDate to the number of seconds since the epoch of 1970-01-01T00:00:00Z.

      This combines this offset date with the specified time to calculate the epoch-second value, which is the number of elapsed seconds from 1970-01-01T00:00:00Z. Instants on the time-line after the epoch are positive, earlier are negative.

      Parameters:
      time - the local time, not null
      Returns:
      the number of seconds since the epoch of 1970-01-01T00:00:00Z, may be negative

    • compareTo

      public int compareTo(@Nonnull XMLOffsetDate o)
      Compares this XMLOffsetDate to another date.

      The comparison is based first on the UTC equivalent instant, then on the local date. It is "consistent with equals", as defined by Comparable.

      For example, the following is the comparator order:

      1. 2008-06-29-11:00
      2. 2008-06-29-12:00
      3. 2008-06-30+12:00
      4. 2008-06-29-13:00
      Values #2 and #3 represent the same instant on the time-line. When two values represent the same instant, the local date is compared to distinguish them. This step is needed to make the ordering consistent with equals().

      To compare the underlying local date of two TemporalAccessor instances, use ChronoField.EPOCH_DAY as a comparator.

      Specified by:
      compareTo in interface Comparable<XMLOffsetDate>
      Parameters:
      o - the other date to compare to, not null
      Returns:
      the comparator value, negative if less, positive if greater

    • isAfter

      public boolean isAfter(@Nonnull XMLOffsetDate other)
      Checks if the instant of midnight at the start of this XMLOffsetDate is after midnight at the start of the specified date.

      This method differs from the comparison in compareTo(com.helger.commons.datetime.XMLOffsetDate) in that it only compares the instant of the date. This is equivalent to using date1.toEpochSecond().isAfter(date2.toEpochSecond()).

      Parameters:
      other - the other date to compare to, not null
      Returns:
      true if this is after the instant of the specified date

    • isBefore

      public boolean isBefore(@Nonnull XMLOffsetDate other)
      Checks if the instant of midnight at the start of this XMLOffsetDate is before midnight at the start of the specified date.

      This method differs from the comparison in compareTo(com.helger.commons.datetime.XMLOffsetDate) in that it only compares the instant of the date. This is equivalent to using date1.toEpochSecond().isBefore(date2.toEpochSecond()).

      Parameters:
      other - the other date to compare to, not null
      Returns:
      true if this is before the instant of the specified date

    • isEqual

      public boolean isEqual(@Nonnull XMLOffsetDate other)
      Checks if the instant of midnight at the start of this XMLOffsetDate equals midnight at the start of the specified date.

      This method differs from the comparison in compareTo(com.helger.commons.datetime.XMLOffsetDate) and equals(java.lang.Object) in that it only compares the instant of the date. This is equivalent to using date1.toEpochSecond().equals(date2.toEpochSecond()).

      Parameters:
      other - the other date to compare to, not null
      Returns:
      true if the instant equals the instant of the specified date

    • toOffsetDate

      @Nullable public OffsetDate toOffsetDate()

    • equals

      public boolean equals(Object o)
      Checks if this date is equal to another date.

      The comparison is based on the local-date and the offset. To compare for the same instant on the time-line, use isEqual(XMLOffsetDate).

      Only objects of type XMLOffsetDate are compared, other types return false. To compare the underlying local date of two TemporalAccessor instances, use ChronoField.EPOCH_DAY as a comparator.

      Overrides:
      equals in class Object
      Parameters:
      o - the object to check, null returns false
      Returns:
      true if this is equal to the other date

    • hashCode

      public int hashCode()
      A hash code for this date.
      Overrides:
      hashCode in class Object
      Returns:
      a suitable hash code

    • getAsString

      @Nonnull @Nonempty @Deprecated(forRemoval=false) public String getAsString()
      Deprecated.

    • toString

      public String toString()
      Outputs this date as a String, such as 2007-12-03+01:00.

      The output will be in the ISO-8601 format yyyy-MM-dd or yyyy-MM-ddXXXXX.

      Overrides:
      toString in class Object
      Returns:
      a string representation of this date, not null