MutableDateTime (Joda time 2.1 API)

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org.joda.time
Class MutableDateTime

java.lang.Object
  org.joda.time.base.AbstractInstant
      org.joda.time.base.AbstractDateTime
          org.joda.time.base.BaseDateTime
              org.joda.time.MutableDateTime

All Implemented Interfaces:: Serializable, Cloneable, Comparable<ReadableInstant>, ReadableDateTime, ReadableInstant, ReadWritableDateTime, ReadWritableInstant

public class MutableDateTime
extends BaseDateTime
implements ReadWritableDateTime, Cloneable, Serializable
extends BaseDateTime
implements ReadWritableDateTime, Cloneable, Serializable

MutableDateTime is the standard implementation of a modifiable datetime class. It holds the datetime as milliseconds from the Java epoch of 1970-01-01T00:00:00Z.

This class uses a Chronology internally. The Chronology determines how the millisecond instant value is converted into the date time fields. The default Chronology is ISOChronology which is the agreed international standard and compatible with the modern Gregorian calendar.

Each individual field can be accessed in two ways:

getHourOfDay()
hourOfDay().get()

The second technique also provides access to other useful methods on the field:

get numeric value
set numeric value
add to numeric value
add to numeric value wrapping with the field
get text value
get short text value
set text value
field maximum value
field minimum value

MutableDateTime is mutable and not thread-safe, unless concurrent threads are not invoking mutator methods.

Since:: 1.0
Author:: Guy Allard, Brian S O'Neill, Stephen Colebourne, Mike Schrag
See Also:: DateTime, Serialized Form

Nested Class Summary
`static class`	`MutableDateTime.Property` MutableDateTime.Property binds a MutableDateTime to a DateTimeField allowing powerful datetime functionality to be easily accessed.

Field Summary
`static int`	`ROUND_CEILING` Rounding mode as described by `DateTimeField.roundCeiling(long)`
`static int`	`ROUND_FLOOR` Rounding mode as described by `DateTimeField.roundFloor(long)`
`static int`	`ROUND_HALF_CEILING` Rounding mode as described by `DateTimeField.roundHalfCeiling(long)`
`static int`	`ROUND_HALF_EVEN` Rounding mode as described by `DateTimeField.roundHalfEven(long)`
`static int`	`ROUND_HALF_FLOOR` Rounding mode as described by `DateTimeField.roundHalfFloor(long)`
`static int`	`ROUND_NONE` Rounding is disabled

Constructor Summary
`MutableDateTime()` Constructs an instance set to the current system millisecond time using `ISOChronology` in the default time zone.
`MutableDateTime(Chronology chronology)` Constructs an instance set to the current system millisecond time using the specified chronology.
`MutableDateTime(DateTimeZone zone)` Constructs an instance set to the current system millisecond time using `ISOChronology` in the specified time zone.
`MutableDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)` Constructs an instance from datetime field values using `ISOChronology` in the default time zone.
`MutableDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond, Chronology chronology)` Constructs an instance from datetime field values using the specified chronology.
`MutableDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond, DateTimeZone zone)` Constructs an instance from datetime field values using `ISOChronology` in the specified time zone.
`MutableDateTime(long instant)` Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using `ISOChronology` in the default time zone.
`MutableDateTime(long instant, Chronology chronology)` Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using the specified chronology.
`MutableDateTime(long instant, DateTimeZone zone)` Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using `ISOChronology` in the specified time zone.
`MutableDateTime(Object instant)` Constructs an instance from an Object that represents a datetime.
`MutableDateTime(Object instant, Chronology chronology)` Constructs an instance from an Object that represents a datetime, using the specified chronology.
`MutableDateTime(Object instant, DateTimeZone zone)` Constructs an instance from an Object that represents a datetime, forcing the time zone to that specified.

Method Summary
`void`	`add(DurationFieldType type, int amount)` Adds to the instant specifying the duration and multiple to add.
`void`	`add(long duration)` Add an amount of time to the datetime.
`void`	`add(ReadableDuration duration)` Adds a duration to this instant.
`void`	`add(ReadableDuration duration, int scalar)` Adds a duration to this instant specifying how many times to add.
`void`	`add(ReadablePeriod period)` Adds a period to this instant.
`void`	`add(ReadablePeriod period, int scalar)` Adds a period to this instant specifying how many times to add.
`void`	`addDays(int days)` Add a number of days to the date.
`void`	`addHours(int hours)` Add a number of hours to the date.
`void`	`addMillis(int millis)` Add a number of milliseconds to the date.
`void`	`addMinutes(int minutes)` Add a number of minutes to the date.
`void`	`addMonths(int months)` Add a number of months to the date.
`void`	`addSeconds(int seconds)` Add a number of seconds to the date.
`void`	`addWeeks(int weeks)` Add a number of weeks to the date.
`void`	`addWeekyears(int weekyears)` Add a number of weekyears to the date.
`void`	`addYears(int years)` Add a number of years to the date.
`MutableDateTime.Property`	`centuryOfEra()` Get the century of era property.
`Object`	`clone()` Clone this object.
`MutableDateTime`	`copy()` Clone this object without having to cast the returned object.
`MutableDateTime.Property`	`dayOfMonth()` Get the day of month property.
`MutableDateTime.Property`	`dayOfWeek()` Get the day of week property.
`MutableDateTime.Property`	`dayOfYear()` Get the day of year property.
`MutableDateTime.Property`	`era()` Get the era property.
`DateTimeField`	`getRoundingField()` Gets the field used for rounding this instant, returning null if rounding is not enabled.
`int`	`getRoundingMode()` Gets the rounding mode for this instant, returning ROUND_NONE if rounding is not enabled.
`MutableDateTime.Property`	`hourOfDay()` Get the hour of day field property
`MutableDateTime.Property`	`millisOfDay()` Get the millis of day property
`MutableDateTime.Property`	`millisOfSecond()` Get the millis of second property
`MutableDateTime.Property`	`minuteOfDay()` Get the minute of day property
`MutableDateTime.Property`	`minuteOfHour()` Get the minute of hour field property
`MutableDateTime.Property`	`monthOfYear()` Get the month of year property.
`static MutableDateTime`	`now()` Obtains a `MutableDateTime` set to the current system millisecond time using `ISOChronology` in the default time zone.
`static MutableDateTime`	`now(Chronology chronology)` Obtains a `MutableDateTime` set to the current system millisecond time using the specified chronology.
`static MutableDateTime`	`now(DateTimeZone zone)` Obtains a `MutableDateTime` set to the current system millisecond time using `ISOChronology` in the specified time zone.
`static MutableDateTime`	`parse(String str)` Parses a `MutableDateTime` from the specified string.
`static MutableDateTime`	`parse(String str, DateTimeFormatter formatter)` Parses a `MutableDateTime` from the specified string using a formatter.
`MutableDateTime.Property`	`property(DateTimeFieldType type)` Gets the property object for the specified type, which contains many useful methods.
`MutableDateTime.Property`	`secondOfDay()` Get the second of day property
`MutableDateTime.Property`	`secondOfMinute()` Get the second of minute field property
`void`	`set(DateTimeFieldType type, int value)` Sets the value of one of the fields of the instant, such as hourOfDay.
`void`	`setChronology(Chronology chronology)` Set the chronology of the datetime.
`void`	`setDate(int year, int monthOfYear, int dayOfMonth)` Set the date from fields.
`void`	`setDate(long instant)` Set the date from milliseconds.
`void`	`setDate(ReadableInstant instant)` Set the date from another instant.
`void`	`setDateTime(int year, int monthOfYear, int dayOfMonth, int hourOfDay, int minuteOfHour, int secondOfMinute, int millisOfSecond)` Set the date and time from fields.
`void`	`setDayOfMonth(int dayOfMonth)` Set the day of the month to the specified value.
`void`	`setDayOfWeek(int dayOfWeek)` Set the day of week to the specified value.
`void`	`setDayOfYear(int dayOfYear)` Set the day of year to the specified value.
`void`	`setHourOfDay(int hourOfDay)` Set the hour of the day to the specified value.
`void`	`setMillis(long instant)` Set the milliseconds of the datetime.
`void`	`setMillis(ReadableInstant instant)` Sets the millisecond instant of this instant from another.
`void`	`setMillisOfDay(int millisOfDay)` Set the millis of the day to the specified value.
`void`	`setMillisOfSecond(int millisOfSecond)` Set the millis of the second to the specified value.
`void`	`setMinuteOfDay(int minuteOfDay)` Set the minute of the day to the specified value.
`void`	`setMinuteOfHour(int minuteOfHour)` Set the minute of the hour to the specified value.
`void`	`setMonthOfYear(int monthOfYear)` Set the month of the year to the specified value.
`void`	`setRounding(DateTimeField field)` Sets the status of rounding to use the specified field and ROUND_FLOOR mode.
`void`	`setRounding(DateTimeField field, int mode)` Sets the status of rounding to use the specified field and mode.
`void`	`setSecondOfDay(int secondOfDay)` Set the second of the day to the specified value.
`void`	`setSecondOfMinute(int secondOfMinute)` Set the second of the minute to the specified value.
`void`	`setTime(int hour, int minuteOfHour, int secondOfMinute, int millisOfSecond)` Set the time from fields.
`void`	`setTime(long millis)` Set the time from milliseconds.
`void`	`setTime(ReadableInstant instant)` Set the time from another instant.
`void`	`setWeekOfWeekyear(int weekOfWeekyear)` Set the week of weekyear to the specified value.
`void`	`setWeekyear(int weekyear)` Set the weekyear to the specified value.
`void`	`setYear(int year)` Set the year to the specified value.
`void`	`setZone(DateTimeZone newZone)` Sets the time zone of the datetime, changing the chronology and field values.
`void`	`setZoneRetainFields(DateTimeZone newZone)` Sets the time zone of the datetime, changing the chronology and millisecond.
`String`	`toString()` Output the date time in ISO8601 format (yyyy-MM-ddTHH:mm:ss.SSSZZ).
`MutableDateTime.Property`	`weekOfWeekyear()` Get the week of a week based year property.
`MutableDateTime.Property`	`weekyear()` Get the year of a week based year property.
`MutableDateTime.Property`	`year()` Get the year property.
`MutableDateTime.Property`	`yearOfCentury()` Get the year of century property.
`MutableDateTime.Property`	`yearOfEra()` Get the year of era property.

Methods inherited from class org.joda.time.base.BaseDateTime
`checkChronology, checkInstant, getChronology, getMillis`

Methods inherited from class org.joda.time.base.AbstractDateTime
`get, getCenturyOfEra, getDayOfMonth, getDayOfWeek, getDayOfYear, getEra, getHourOfDay, getMillisOfDay, getMillisOfSecond, getMinuteOfDay, getMinuteOfHour, getMonthOfYear, getSecondOfDay, getSecondOfMinute, getWeekOfWeekyear, getWeekyear, getYear, getYearOfCentury, getYearOfEra, toCalendar, toGregorianCalendar, toString, toString`

Methods inherited from class org.joda.time.base.AbstractInstant
`compareTo, equals, get, getZone, hashCode, isAfter, isAfter, isAfterNow, isBefore, isBefore, isBeforeNow, isEqual, isEqual, isEqualNow, isSupported, toDate, toDateTime, toDateTime, toDateTime, toDateTimeISO, toInstant, toMutableDateTime, toMutableDateTime, toMutableDateTime, toMutableDateTimeISO, toString`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Methods inherited from interface org.joda.time.ReadableDateTime
`getCenturyOfEra, getDayOfMonth, getDayOfWeek, getDayOfYear, getEra, getHourOfDay, getMillisOfDay, getMillisOfSecond, getMinuteOfDay, getMinuteOfHour, getMonthOfYear, getSecondOfDay, getSecondOfMinute, getWeekOfWeekyear, getWeekyear, getYear, getYearOfCentury, getYearOfEra, toDateTime, toMutableDateTime, toString, toString`

Methods inherited from interface org.joda.time.ReadableInstant
`equals, get, getChronology, getMillis, getZone, hashCode, isAfter, isBefore, isEqual, isSupported, toInstant`

Methods inherited from interface java.lang.Comparable
`compareTo`

Methods inherited from interface org.joda.time.ReadableInstant
`equals, get, getChronology, getMillis, getZone, hashCode, isAfter, isBefore, isEqual, isSupported, toInstant`

Methods inherited from interface java.lang.Comparable
`compareTo`

Field Detail

ROUND_NONE

public static final int ROUND_NONE

Rounding is disabled

See Also:: Constant Field Values

ROUND_FLOOR

public static final int ROUND_FLOOR

Rounding mode as described by DateTimeField.roundFloor(long)

See Also:: Constant Field Values

ROUND_CEILING

public static final int ROUND_CEILING

Rounding mode as described by DateTimeField.roundCeiling(long)

See Also:: Constant Field Values

ROUND_HALF_FLOOR

public static final int ROUND_HALF_FLOOR

Rounding mode as described by DateTimeField.roundHalfFloor(long)

See Also:: Constant Field Values

ROUND_HALF_CEILING

public static final int ROUND_HALF_CEILING

Rounding mode as described by DateTimeField.roundHalfCeiling(long)

See Also:: Constant Field Values

ROUND_HALF_EVEN

public static final int ROUND_HALF_EVEN

Rounding mode as described by DateTimeField.roundHalfEven(long)

See Also:: Constant Field Values

Constructor Detail

MutableDateTime

public MutableDateTime()

Constructs an instance set to the current system millisecond time using ISOChronology in the default time zone.

See Also:: now()

MutableDateTime

public MutableDateTime(DateTimeZone zone)

Constructs an instance set to the current system millisecond time using ISOChronology in the specified time zone.

If the specified time zone is null, the default zone is used.

Parameters:: zone - the time zone, null means default zone
See Also:: now(DateTimeZone)

MutableDateTime

public MutableDateTime(Chronology chronology)

Constructs an instance set to the current system millisecond time using the specified chronology.

If the chronology is null, ISOChronology in the default time zone is used.

Parameters:: chronology - the chronology, null means ISOChronology in default zone
See Also:: now(Chronology)

MutableDateTime

public MutableDateTime(long instant)

Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using ISOChronology in the default time zone.

Parameters:: instant - the milliseconds from 1970-01-01T00:00:00Z

MutableDateTime

public MutableDateTime(long instant,
                       DateTimeZone zone)

Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using ISOChronology in the specified time zone.

If the specified time zone is null, the default zone is used.

Parameters:: instant - the milliseconds from 1970-01-01T00:00:00Z; zone - the time zone, null means default zone

MutableDateTime

public MutableDateTime(long instant,
                       Chronology chronology)

Constructs an instance set to the milliseconds from 1970-01-01T00:00:00Z using the specified chronology.

If the chronology is null, ISOChronology in the default time zone is used.

Parameters:: instant - the milliseconds from 1970-01-01T00:00:00Z; chronology - the chronology, null means ISOChronology in default zone

MutableDateTime

public MutableDateTime(Object instant)

Constructs an instance from an Object that represents a datetime.

If the object implies a chronology (such as GregorianCalendar does), then that chronology will be used. Otherwise, ISO default is used. Thus if a GregorianCalendar is passed in, the chronology used will be GJ, but if a Date is passed in the chronology will be ISO.

The recognised object types are defined in ConverterManager and include ReadableInstant, String, Calendar and Date.

Parameters:: instant - the datetime object, null means now
Throws:: IllegalArgumentException - if the instant is invalid

MutableDateTime

public MutableDateTime(Object instant,
                       DateTimeZone zone)

Constructs an instance from an Object that represents a datetime, forcing the time zone to that specified.

If the object implies a chronology (such as GregorianCalendar does), then that chronology will be used, but with the time zone adjusted. Otherwise, ISO is used in the specified time zone. If the specified time zone is null, the default zone is used. Thus if a GregorianCalendar is passed in, the chronology used will be GJ, but if a Date is passed in the chronology will be ISO.

The recognised object types are defined in ConverterManager and include ReadableInstant, String, Calendar and Date.

Parameters:: instant - the datetime object, null means now; zone - the time zone, null means default time zone
Throws:: IllegalArgumentException - if the instant is invalid

MutableDateTime

public MutableDateTime(Object instant,
                       Chronology chronology)

Constructs an instance from an Object that represents a datetime, using the specified chronology.

If the chronology is null, ISO in the default time zone is used. Any chronology implied by the object (such as GregorianCalendar does) is ignored.

The recognised object types are defined in ConverterManager and include ReadableInstant, String, Calendar and Date.

Parameters:: instant - the datetime object, null means now; chronology - the chronology, null means ISOChronology in default zone
Throws:: IllegalArgumentException - if the instant is invalid

MutableDateTime

public MutableDateTime(int year,
                       int monthOfYear,
                       int dayOfMonth,
                       int hourOfDay,
                       int minuteOfHour,
                       int secondOfMinute,
                       int millisOfSecond)

Constructs an instance from datetime field values using ISOChronology in the default time zone.

Parameters:: year - the year; monthOfYear - the month of the year; dayOfMonth - the day of the month; hourOfDay - the hour of the day; minuteOfHour - the minute of the hour; secondOfMinute - the second of the minute; millisOfSecond - the millisecond of the second

MutableDateTime

public MutableDateTime(int year,
                       int monthOfYear,
                       int dayOfMonth,
                       int hourOfDay,
                       int minuteOfHour,
                       int secondOfMinute,
                       int millisOfSecond,
                       DateTimeZone zone)

Constructs an instance from datetime field values using ISOChronology in the specified time zone.

If the specified time zone is null, the default zone is used.

Parameters:: year - the year; monthOfYear - the month of the year; dayOfMonth - the day of the month; hourOfDay - the hour of the day; minuteOfHour - the minute of the hour; secondOfMinute - the second of the minute; millisOfSecond - the millisecond of the second; zone - the time zone, null means default time zone

MutableDateTime

public MutableDateTime(int year,
                       int monthOfYear,
                       int dayOfMonth,
                       int hourOfDay,
                       int minuteOfHour,
                       int secondOfMinute,
                       int millisOfSecond,
                       Chronology chronology)

Constructs an instance from datetime field values using the specified chronology.

If the chronology is null, ISOChronology in the default time zone is used.

Parameters:: year - the year; monthOfYear - the month of the year; dayOfMonth - the day of the month; hourOfDay - the hour of the day; minuteOfHour - the minute of the hour; secondOfMinute - the second of the minute; millisOfSecond - the millisecond of the second; chronology - the chronology, null means ISOChronology in default zone

Method Detail

now

public static MutableDateTime now()

Obtains a MutableDateTime set to the current system millisecond time using ISOChronology in the default time zone.

Returns:: the current date-time, not null
Since:: 2.0

now

public static MutableDateTime now(DateTimeZone zone)

Obtains a MutableDateTime set to the current system millisecond time using ISOChronology in the specified time zone.

Parameters:: zone - the time zone, not null
Returns:: the current date-time, not null
Since:: 2.0

now

public static MutableDateTime now(Chronology chronology)

Obtains a MutableDateTime set to the current system millisecond time using the specified chronology.

Parameters:: chronology - the chronology, not null
Returns:: the current date-time, not null
Since:: 2.0

parse

public static MutableDateTime parse(String str)

Parses a MutableDateTime from the specified string.

This uses ISODateTimeFormat.dateTimeParser().

Parameters:: str - the string to parse, not null
Since:: 2.0

parse

public static MutableDateTime parse(String str,
                                    DateTimeFormatter formatter)

Parses a MutableDateTime from the specified string using a formatter.

Parameters:: str - the string to parse, not null; formatter - the formatter to use, not null
Since:: 2.0

getRoundingField

public DateTimeField getRoundingField()

Gets the field used for rounding this instant, returning null if rounding is not enabled.

Returns:: the rounding field

getRoundingMode

public int getRoundingMode()

Gets the rounding mode for this instant, returning ROUND_NONE if rounding is not enabled.

Returns:: the rounding mode constant

setRounding

public void setRounding(DateTimeField field)

Sets the status of rounding to use the specified field and ROUND_FLOOR mode. A null field will disable rounding. Once set, the instant is then rounded using the new field and mode.

Enabling rounding will cause all subsequent calls to setMillis(long) to be rounded. This can be used to control the precision of the instant, for example by setting a rounding field of minuteOfDay, the seconds and milliseconds will always be zero.

Parameters:: field - rounding field or null to disable

setRounding

public void setRounding(DateTimeField field,
                        int mode)

Sets the status of rounding to use the specified field and mode. A null field or mode of ROUND_NONE will disable rounding. Once set, the instant is then rounded using the new field and mode.

Parameters:: field - rounding field or null to disable; mode - rounding mode or ROUND_NONE to disable
Throws:: IllegalArgumentException - if mode is unknown, no exception if field is null

setMillis

public void setMillis(long instant)

Set the milliseconds of the datetime.

All changes to the millisecond field occurs via this method.

Specified by:: setMillis in interface ReadWritableInstant
Overrides:: setMillis in class BaseDateTime

Parameters:: instant - the milliseconds since 1970-01-01T00:00:00Z to set the datetime to

setMillis

public 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.

Specified by:: setMillis in interface ReadWritableInstant

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

add

public void add(long duration)

Add an amount of time to the datetime.

Specified by:: add in interface ReadWritableInstant

Parameters:: duration - the millis to add
Throws:: ArithmeticException - if the result exceeds the capacity of the instant

add

public void add(ReadableDuration duration)

Adds a duration to this instant.

This will typically change the value of most fields.

Specified by:: add in interface ReadWritableInstant

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

add

public 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.

Specified by:: add in interface ReadWritableInstant

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

add

public void add(ReadablePeriod period)

Adds a period to this instant.

This will typically change the value of most fields.

Specified by:: add in interface ReadWritableInstant

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

add

public 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.

Specified by:: add in interface ReadWritableInstant

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

setChronology

public void setChronology(Chronology chronology)

Set the chronology of the datetime.

All changes to the chronology occur via this method.

Specified by:: setChronology in interface ReadWritableInstant
Overrides:: setChronology in class BaseDateTime

Parameters:: chronology - the chronology to use, null means ISOChronology in default zone

setZone

public void setZone(DateTimeZone newZone)

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.

Specified by:: setZone in interface ReadWritableInstant

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

setZoneRetainFields

public void setZoneRetainFields(DateTimeZone newZone)

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.

Specified by:: setZoneRetainFields in interface ReadWritableInstant

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

set

public void set(DateTimeFieldType type,
                int value)

Sets the value of one of the fields of the instant, such as hourOfDay.

Specified by:: set in interface ReadWritableInstant

Parameters:: type - a field type, usually obtained from DateTimeFieldType, not null; value - the value to set the field to
Throws:: IllegalArgumentException - if the value is null or invalid

add

public void add(DurationFieldType type,
                int amount)

Adds to the instant specifying the duration and multiple to add.

Specified by:: add in interface ReadWritableInstant

Parameters:: type - a field type, usually obtained from DateTimeFieldType, not null; amount - the amount to add of this duration
Throws:: IllegalArgumentException - if the value is null or invalid; ArithmeticException - if the result exceeds the capacity of the instant

setYear

public void setYear(int year)

Set the year to the specified value.

Specified by:: setYear in interface ReadWritableDateTime

Parameters:: year - the year
Throws:: IllegalArgumentException - if the value is invalid

addYears

public void addYears(int years)

Add a number of years to the date.

Specified by:: addYears in interface ReadWritableDateTime

Parameters:: years - the years to add
Throws:: IllegalArgumentException - if the value is invalid

setWeekyear

public void setWeekyear(int weekyear)

Set the weekyear to the specified value.

Specified by:: setWeekyear in interface ReadWritableDateTime

Parameters:: weekyear - the weekyear
Throws:: IllegalArgumentException - if the value is invalid

addWeekyears

public void addWeekyears(int weekyears)

Add a number of weekyears to the date.

Specified by:: addWeekyears in interface ReadWritableDateTime

Parameters:: weekyears - the weekyears to add
Throws:: IllegalArgumentException - if the value is invalid

setMonthOfYear

public void setMonthOfYear(int monthOfYear)

Set the month of the year to the specified value.

Specified by:: setMonthOfYear in interface ReadWritableDateTime

Parameters:: monthOfYear - the month of the year
Throws:: IllegalArgumentException - if the value is invalid

addMonths

public void addMonths(int months)

Add a number of months to the date.

Specified by:: addMonths in interface ReadWritableDateTime

Parameters:: months - the months to add
Throws:: IllegalArgumentException - if the value is invalid

setWeekOfWeekyear

public void setWeekOfWeekyear(int weekOfWeekyear)

Set the week of weekyear to the specified value.

Specified by:: setWeekOfWeekyear in interface ReadWritableDateTime

Parameters:: weekOfWeekyear - the week of the weekyear
Throws:: IllegalArgumentException - if the value is invalid

addWeeks

public void addWeeks(int weeks)

Add a number of weeks to the date.

Specified by:: addWeeks in interface ReadWritableDateTime

Parameters:: weeks - the weeks to add
Throws:: IllegalArgumentException - if the value is invalid

setDayOfYear

public void setDayOfYear(int dayOfYear)

Set the day of year to the specified value.

Specified by:: setDayOfYear in interface ReadWritableDateTime

Parameters:: dayOfYear - the day of the year
Throws:: IllegalArgumentException - if the value is invalid

setDayOfMonth

public void setDayOfMonth(int dayOfMonth)

Set the day of the month to the specified value.

Specified by:: setDayOfMonth in interface ReadWritableDateTime

Parameters:: dayOfMonth - the day of the month
Throws:: IllegalArgumentException - if the value is invalid

setDayOfWeek

public void setDayOfWeek(int dayOfWeek)

Set the day of week to the specified value.

Specified by:: setDayOfWeek in interface ReadWritableDateTime

Parameters:: dayOfWeek - the day of the week
Throws:: IllegalArgumentException - if the value is invalid

addDays

public void addDays(int days)

Add a number of days to the date.

Specified by:: addDays in interface ReadWritableDateTime

Parameters:: days - the days to add
Throws:: IllegalArgumentException - if the value is invalid

setHourOfDay

public void setHourOfDay(int hourOfDay)

Set the hour of the day to the specified value.

Specified by:: setHourOfDay in interface ReadWritableDateTime

Parameters:: hourOfDay - the hour of day
Throws:: IllegalArgumentException - if the value is invalid

addHours

public void addHours(int hours)

Add a number of hours to the date.

Specified by:: addHours in interface ReadWritableDateTime

Parameters:: hours - the hours to add
Throws:: IllegalArgumentException - if the value is invalid

setMinuteOfDay

public void setMinuteOfDay(int minuteOfDay)

Set the minute of the day to the specified value.

Specified by:: setMinuteOfDay in interface ReadWritableDateTime

Parameters:: minuteOfDay - the minute of day
Throws:: IllegalArgumentException - if the value is invalid

setMinuteOfHour

public void setMinuteOfHour(int minuteOfHour)

Set the minute of the hour to the specified value.

Specified by:: setMinuteOfHour in interface ReadWritableDateTime

Parameters:: minuteOfHour - the minute of hour
Throws:: IllegalArgumentException - if the value is invalid

addMinutes

public void addMinutes(int minutes)

Add a number of minutes to the date.

Specified by:: addMinutes in interface ReadWritableDateTime

Parameters:: minutes - the minutes to add
Throws:: IllegalArgumentException - if the value is invalid

setSecondOfDay

public void setSecondOfDay(int secondOfDay)

Set the second of the day to the specified value.

Specified by:: setSecondOfDay in interface ReadWritableDateTime

Parameters:: secondOfDay - the second of day
Throws:: IllegalArgumentException - if the value is invalid

setSecondOfMinute

public void setSecondOfMinute(int secondOfMinute)

Set the second of the minute to the specified value.

Specified by:: setSecondOfMinute in interface ReadWritableDateTime

Parameters:: secondOfMinute - the second of minute
Throws:: IllegalArgumentException - if the value is invalid

addSeconds

public void addSeconds(int seconds)

Add a number of seconds to the date.

Specified by:: addSeconds in interface ReadWritableDateTime

Parameters:: seconds - the seconds to add
Throws:: IllegalArgumentException - if the value is invalid

setMillisOfDay

public void setMillisOfDay(int millisOfDay)

Set the millis of the day to the specified value.

Specified by:: setMillisOfDay in interface ReadWritableDateTime

Parameters:: millisOfDay - the millis of day
Throws:: IllegalArgumentException - if the value is invalid

setMillisOfSecond

public void setMillisOfSecond(int millisOfSecond)

Set the millis of the second to the specified value.

Specified by:: setMillisOfSecond in interface ReadWritableDateTime

Parameters:: millisOfSecond - the millis of second
Throws:: IllegalArgumentException - if the value is invalid

addMillis

public void addMillis(int millis)

Add a number of milliseconds to the date. The implementation of this method differs from the add(long) method in that a DateTimeField performs the addition.

Specified by:: addMillis in interface ReadWritableDateTime

Parameters:: millis - the milliseconds to add
Throws:: IllegalArgumentException - if the value is invalid

setDate

public void setDate(long instant)

Set the date from milliseconds. The time part of this object will be unaffected.

Parameters:: instant - an instant to copy the date from, time part ignored
Throws:: IllegalArgumentException - if the value is invalid

setDate

public void setDate(ReadableInstant instant)

Set the date from another instant. The time part of this object will be unaffected.

Parameters:: instant - an instant to copy the date from, time part ignored
Throws:: IllegalArgumentException - if the object is invalid

setDate

public void setDate(int year,
                    int monthOfYear,
                    int dayOfMonth)

Set the date from fields. The time part of this object will be unaffected.

Specified by:: setDate in interface ReadWritableDateTime

Parameters:: year - the year; monthOfYear - the month of the year; dayOfMonth - the day of the month
Throws:: IllegalArgumentException - if the value is invalid

setTime

public void setTime(long millis)

Set the time from milliseconds. The date part of this object will be unaffected.

Parameters:: millis - an instant to copy the time from, date part ignored
Throws:: IllegalArgumentException - if the value is invalid

setTime

public void setTime(ReadableInstant instant)

Set the time from another instant. The date part of this object will be unaffected.

Parameters:: instant - an instant to copy the time from, date part ignored
Throws:: IllegalArgumentException - if the object is invalid

setTime

public void setTime(int hour,
                    int minuteOfHour,
                    int secondOfMinute,
                    int millisOfSecond)

Set the time from fields. The date part of this object will be unaffected.

Specified by:: setTime in interface ReadWritableDateTime

Parameters:: hour - the hour; minuteOfHour - the minute of the hour; secondOfMinute - the second of the minute; millisOfSecond - the millisecond of the second
Throws:: IllegalArgumentException - if the value is invalid

setDateTime

public void setDateTime(int year,
                        int monthOfYear,
                        int dayOfMonth,
                        int hourOfDay,
                        int minuteOfHour,
                        int secondOfMinute,
                        int millisOfSecond)

Set the date and time from fields.

Specified by:: setDateTime in interface ReadWritableDateTime

Parameters:: year - the year; monthOfYear - the month of the year; dayOfMonth - the day of the month; hourOfDay - the hour of the day; minuteOfHour - the minute of the hour; secondOfMinute - the second of the minute; millisOfSecond - the millisecond of the second
Throws:: IllegalArgumentException - if the value is invalid

property

public MutableDateTime.Property property(DateTimeFieldType type)

Gets the property object for the specified type, which contains many useful methods.

Parameters:: type - the field type to get the chronology for
Returns:: the property object
Throws:: IllegalArgumentException - if the field is null or unsupported
Since:: 1.2

era

public MutableDateTime.Property era()

Get the era property.

Returns:: the era property

centuryOfEra

public MutableDateTime.Property centuryOfEra()

Get the century of era property.

Returns:: the year of era property

yearOfCentury

public MutableDateTime.Property yearOfCentury()

Get the year of century property.

Returns:: the year of era property

yearOfEra

public MutableDateTime.Property yearOfEra()

Get the year of era property.

Returns:: the year of era property

year

public MutableDateTime.Property year()

Get the year property.

Returns:: the year property

weekyear

public MutableDateTime.Property weekyear()

Get the year of a week based year property.

Returns:: the year of a week based year property

monthOfYear

public MutableDateTime.Property monthOfYear()

Get the month of year property.

Returns:: the month of year property

weekOfWeekyear

public MutableDateTime.Property weekOfWeekyear()

Get the week of a week based year property.

Returns:: the week of a week based year property

dayOfYear

public MutableDateTime.Property dayOfYear()

Get the day of year property.

Returns:: the day of year property

dayOfMonth

public MutableDateTime.Property dayOfMonth()

Get the day of month property.

The values for day of month are defined in DateTimeConstants.

Returns:: the day of month property

dayOfWeek

public MutableDateTime.Property dayOfWeek()

Get the day of week property.

The values for day of week are defined in DateTimeConstants.

Returns:: the day of week property

hourOfDay

public MutableDateTime.Property hourOfDay()

Get the hour of day field property

Returns:: the hour of day property

minuteOfDay

public MutableDateTime.Property minuteOfDay()

Get the minute of day property

Returns:: the minute of day property

minuteOfHour

public MutableDateTime.Property minuteOfHour()

Get the minute of hour field property

Returns:: the minute of hour property

secondOfDay

public MutableDateTime.Property secondOfDay()

Get the second of day property

Returns:: the second of day property

secondOfMinute

public MutableDateTime.Property secondOfMinute()

Get the second of minute field property

Returns:: the second of minute property

millisOfDay

public MutableDateTime.Property millisOfDay()

Get the millis of day property

Returns:: the millis of day property

millisOfSecond

public MutableDateTime.Property millisOfSecond()

Get the millis of second property

Returns:: the millis of second property

copy

public MutableDateTime copy()

Clone this object without having to cast the returned object.

Returns:: a clone of the this object.

clone

public Object clone()

Clone this object.

Overrides:: clone in class Object

Returns:: a clone of this object.

toString

public String toString()

Output the date time in ISO8601 format (yyyy-MM-ddTHH:mm:ss.SSSZZ).

Specified by:: toString in interface ReadableInstant
Overrides:: toString in class AbstractInstant

Returns:: ISO8601 time formatted string.

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org.joda.time Class MutableDateTime

ROUND_NONE

ROUND_FLOOR

ROUND_CEILING

ROUND_HALF_FLOOR

ROUND_HALF_CEILING

ROUND_HALF_EVEN

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

MutableDateTime

now

now

now

parse

parse

getRoundingField

getRoundingMode

setRounding

setRounding

setMillis

setMillis

add

add

add

add

add

setChronology

setZone

setZoneRetainFields

set

add

setYear

addYears

setWeekyear

addWeekyears

setMonthOfYear

addMonths

setWeekOfWeekyear

addWeeks

setDayOfYear

setDayOfMonth

setDayOfWeek

addDays

setHourOfDay

addHours

setMinuteOfDay

setMinuteOfHour

addMinutes

setSecondOfDay

setSecondOfMinute

addSeconds

setMillisOfDay

setMillisOfSecond

addMillis

setDate

setDate

setDate

setTime

setTime

setTime

setDateTime

property

era

centuryOfEra

yearOfCentury

yearOfEra

year

weekyear

monthOfYear

weekOfWeekyear

dayOfYear

org.joda.time
Class MutableDateTime