org.joda.time
Class MutableInterval

java.lang.Object
  org.joda.time.base.AbstractInterval
      org.joda.time.base.BaseInterval
          org.joda.time.MutableInterval

All Implemented Interfaces:

Serializable, Cloneable, ReadableInterval, ReadWritableInterval

public class MutableInterval
extends BaseInterval
implements ReadWritableInterval, Cloneable, Serializable

MutableInterval is the standard implementation of a mutable time interval.

A time interval represents a period of time between two instants. Intervals are inclusive of the start instant and exclusive of the end. The end instant is always greater than or equal to the start instant.

Intervals have a fixed millisecond duration. This is the difference between the start and end instants. The duration is represented separately by ReadableDuration. As a result, intervals are not comparable. To compare the length of two intervals, you should compare their durations.

An interval can also be converted to a ReadablePeriod. This represents the difference between the start and end points in terms of fields such as years and days.

If performing significant calculations on an interval, it may be faster to convert an Interval object to a MutableInterval one.

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

Since:

1.0

Author:

Stephen Colebourne, Brian S O'Neill

See Also:

Serialized Form

Constructor Summary

MutableInterval()
Constructs a zero length time interval from 1970-01-01 to 1970-01-01.

MutableInterval(long startInstant, long endInstant)
Constructs an interval from a start and end instant with the ISO default chronology.

MutableInterval(long startInstant, long endInstant, Chronology chronology)
Constructs an interval from a start and end instant with a chronology.

MutableInterval(Object interval)
Constructs a time interval by converting or copying from another object.

MutableInterval(Object interval, Chronology chronology)
Constructs a time interval by converting or copying from another object, overriding the chronology.

MutableInterval(ReadableDuration duration, ReadableInstant end)
Constructs an interval from a millisecond duration and an end instant.

MutableInterval(ReadableInstant start, ReadableDuration duration)
Constructs an interval from a start instant and a duration.

MutableInterval(ReadableInstant start, ReadableInstant end)
Constructs an interval from a start and end instant.

MutableInterval(ReadableInstant start, ReadablePeriod period)
Constructs an interval from a start instant and a time period.

MutableInterval(ReadablePeriod period, ReadableInstant end)
Constructs an interval from a time period and an end instant.

Method Summary

Object	clone() Clone this object.
MutableInterval	copy() Clone this object without having to cast the returned object.
static MutableInterval	parse(String str) Parses a MutableInterval from the specified string.
void	setChronology(Chronology chrono) Sets the chronology of this time interval.
void	setDurationAfterStart(long duration) Sets the duration of this time interval, preserving the start instant.
void	setDurationAfterStart(ReadableDuration duration) Sets the duration of this time interval, preserving the start instant.
void	setDurationBeforeEnd(long duration) Sets the duration of this time interval, preserving the end instant.
void	setDurationBeforeEnd(ReadableDuration duration) Sets the duration of this time interval, preserving the end instant.
void	setEnd(ReadableInstant end) Sets the end of this time interval as an Instant.
void	setEndMillis(long endInstant) Sets the end of this time interval.
void	setInterval(long startInstant, long endInstant) Sets this interval from two millisecond instants retaining the chronology.
void	setInterval(ReadableInstant start, ReadableInstant end) Sets this interval from two instants, replacing the chronology with that from the start instant.
void	setInterval(ReadableInterval interval) Sets this interval to be the same as another.
void	setPeriodAfterStart(ReadablePeriod period) Sets the period of this time interval, preserving the start instant and using the ISOChronology in the default zone for calculations.
void	setPeriodBeforeEnd(ReadablePeriod period) Sets the period of this time interval, preserving the end instant and using the ISOChronology in the default zone for calculations.
void	setStart(ReadableInstant start) Sets the start of this time interval as an Instant.
void	setStartMillis(long startInstant) Sets the start of this time interval.

Methods inherited from class org.joda.time.base.BaseInterval

getChronology, getEndMillis, getStartMillis, setInterval

Methods inherited from class org.joda.time.base.AbstractInterval

checkInterval, contains, contains, contains, containsNow, equals, getEnd, getStart, hashCode, isAfter, isAfter, isAfter, isAfterNow, isBefore, isBefore, isBefore, isBeforeNow, overlaps, toDuration, toDurationMillis, toInterval, toMutableInterval, toPeriod, toPeriod, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.joda.time.ReadableInterval

contains, contains, equals, getChronology, getEnd, getEndMillis, getStart, getStartMillis, hashCode, isAfter, isAfter, isBefore, isBefore, overlaps, toDuration, toDurationMillis, toInterval, toMutableInterval, toPeriod, toPeriod, toString

Constructor Detail

MutableInterval

public MutableInterval()

Constructs a zero length time interval from 1970-01-01 to 1970-01-01.

MutableInterval

public MutableInterval(long startInstant,
                       long endInstant)

Constructs an interval from a start and end instant with the ISO default chronology.

Parameters:

startInstant - start of this interval, as milliseconds from 1970-01-01T00:00:00Z.

endInstant - end of this interval, as milliseconds from 1970-01-01T00:00:00Z.

Throws:

IllegalArgumentException - if the end is before the start

MutableInterval

public MutableInterval(long startInstant,
                       long endInstant,
                       Chronology chronology)

Constructs an interval from a start and end instant with a chronology.

Parameters:

chronology - the chronology to use, null is ISO default

startInstant - start of this interval, as milliseconds from 1970-01-01T00:00:00Z.

endInstant - end of this interval, as milliseconds from 1970-01-01T00:00:00Z.

Throws:

IllegalArgumentException - if the end is before the start

MutableInterval

public MutableInterval(ReadableInstant start,
                       ReadableInstant end)

Constructs an interval from a start and end instant.

The chronology used is that of the start instant.

Parameters:

start - start of this interval, null means now

end - end of this interval, null means now

Throws:

IllegalArgumentException - if the end is before the start

MutableInterval

public MutableInterval(ReadableInstant start,
                       ReadableDuration duration)

Constructs an interval from a start instant and a duration.

Parameters:

start - start of this interval, null means now

duration - the duration of this interval, null means zero length

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the end instant exceeds the capacity of a long

MutableInterval

public MutableInterval(ReadableDuration duration,
                       ReadableInstant end)

Constructs an interval from a millisecond duration and an end instant.

Parameters:

duration - the duration of this interval, null means zero length

end - end of this interval, null means now

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the start instant exceeds the capacity of a long

MutableInterval

public MutableInterval(ReadableInstant start,
                       ReadablePeriod period)

Constructs an interval from a start instant and a time period.

When forming the interval, the chronology from the instant is used if present, otherwise the chronology of the period is used.

Parameters:

start - start of this interval, null means now

period - the period of this interval, null means zero length

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the end instant exceeds the capacity of a long

MutableInterval

public MutableInterval(ReadablePeriod period,
                       ReadableInstant end)

Constructs an interval from a time period and an end instant.

When forming the interval, the chronology from the instant is used if present, otherwise the chronology of the period is used.

Parameters:

period - the period of this interval, null means zero length

end - end of this interval, null means now

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the start instant exceeds the capacity of a long

MutableInterval

public MutableInterval(Object interval)

Constructs a time interval by converting or copying from another object.

The recognised object types are defined in ConverterManager and include ReadableInterval and String. The String formats are described by ISODateTimeFormat.dateTimeParser() and ISOPeriodFormat.standard(), and may be 'datetime/datetime', 'datetime/period' or 'period/datetime'.

Parameters:

interval - the time interval to copy

Throws:

IllegalArgumentException - if the interval is invalid

MutableInterval

public MutableInterval(Object interval,
                       Chronology chronology)

Constructs a time interval by converting or copying from another object, overriding the chronology.

The recognised object types are defined in ConverterManager and include ReadableInterval and String. The String formats are described by ISODateTimeFormat.dateTimeParser() and ISOPeriodFormat.standard(), and may be 'datetime/datetime', 'datetime/period' or 'period/datetime'.

Parameters:

interval - the time interval to copy

chronology - the chronology to use, null means ISO default

Throws:

IllegalArgumentException - if the interval is invalid

Method Detail

parse

public static MutableInterval parse(String str)

Parses a MutableInterval from the specified string.

The String formats are described by ISODateTimeFormat.dateTimeParser() and ISOPeriodFormat.standard(), and may be 'datetime/datetime', 'datetime/period' or 'period/datetime'.

Parameters:

str - the string to parse, not null

Since:

2.0

setInterval

public void setInterval(long startInstant,
                        long endInstant)

Sets this interval from two millisecond instants retaining the chronology.

Specified by:

setInterval in interface ReadWritableInterval

Parameters:

startInstant - the start of the time interval

endInstant - the start of the time interval

Throws:

IllegalArgumentException - if the end is before the start

setInterval

public void setInterval(ReadableInterval interval)

Sets this interval to be the same as another.

Specified by:

setInterval in interface ReadWritableInterval

Parameters:

interval - the interval to copy

Throws:

IllegalArgumentException - if the interval is null

setInterval

public void setInterval(ReadableInstant start,
                        ReadableInstant end)

Sets this interval from two instants, replacing the chronology with that from the start instant.

Specified by:

setInterval in interface ReadWritableInterval

Parameters:

start - the start of the time interval

end - the start of the time interval

Throws:

IllegalArgumentException - if the end is before the start

setChronology

public void setChronology(Chronology chrono)

Sets the chronology of this time interval.

Specified by:

setChronology in interface ReadWritableInterval

Parameters:

chrono - the chronology to use, null means ISO default

setStartMillis

public void setStartMillis(long startInstant)

Sets the start of this time interval.

Specified by:

setStartMillis in interface ReadWritableInterval

Parameters:

startInstant - the start of the time interval, millisecond instant from 1970-01-01T00:00:00Z

Throws:

IllegalArgumentException - if the end is before the start

setStart

public void setStart(ReadableInstant start)

Sets the start of this time interval as an Instant.

Specified by:

setStart in interface ReadWritableInterval

Parameters:

start - the start of the time interval, null means now

Throws:

IllegalArgumentException - if the end is before the start

setEndMillis

public void setEndMillis(long endInstant)

Sets the end of this time interval.

Specified by:

setEndMillis in interface ReadWritableInterval

Parameters:

endInstant - the end of the time interval, millisecond instant from 1970-01-01T00:00:00Z

Throws:

IllegalArgumentException - if the end is before the start

setEnd

public void setEnd(ReadableInstant end)

Sets the end of this time interval as an Instant.

Specified by:

setEnd in interface ReadWritableInterval

Parameters:

end - the end of the time interval, null means now

Throws:

IllegalArgumentException - if the end is before the start

setDurationAfterStart

public void setDurationAfterStart(long duration)

Sets the duration of this time interval, preserving the start instant.

Parameters:

duration - new duration for interval

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the end instant exceeds the capacity of a long

setDurationBeforeEnd

public void setDurationBeforeEnd(long duration)

Sets the duration of this time interval, preserving the end instant.

Parameters:

duration - new duration for interval

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the start instant exceeds the capacity of a long

setDurationAfterStart

public void setDurationAfterStart(ReadableDuration duration)

Sets the duration of this time interval, preserving the start instant.

Specified by:

setDurationAfterStart in interface ReadWritableInterval

Parameters:

duration - new duration for interval, null means zero length

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the end instant exceeds the capacity of a long

setDurationBeforeEnd

public void setDurationBeforeEnd(ReadableDuration duration)

Sets the duration of this time interval, preserving the end instant.

Specified by:

setDurationBeforeEnd in interface ReadWritableInterval

Parameters:

duration - new duration for interval, null means zero length

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the start instant exceeds the capacity of a long

setPeriodAfterStart

public void setPeriodAfterStart(ReadablePeriod period)

Sets the period of this time interval, preserving the start instant and using the ISOChronology in the default zone for calculations.

Specified by:

setPeriodAfterStart in interface ReadWritableInterval

Parameters:

period - new period for interval, null means zero length

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the end instant exceeds the capacity of a long

setPeriodBeforeEnd

public void setPeriodBeforeEnd(ReadablePeriod period)

Sets the period of this time interval, preserving the end instant and using the ISOChronology in the default zone for calculations.

Specified by:

setPeriodBeforeEnd in interface ReadWritableInterval

Parameters:

period - new period for interval, null means zero length

Throws:

IllegalArgumentException - if the end is before the start

ArithmeticException - if the start instant exceeds the capacity of a long

copy

public MutableInterval 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.