MutablePeriod (Joda time 2.2 API)

java.lang.Object
- org.joda.time.base.AbstractPeriod
- - org.joda.time.base.BasePeriod
  - - org.joda.time.MutablePeriod

All Implemented Interfaces:

Serializable, Cloneable, ReadablePeriod, ReadWritablePeriod
```
public class MutablePeriod
extends BasePeriod
implements ReadWritablePeriod, Cloneable, Serializable
```
Standard mutable time period implementation.
A time period is divided into a number of fields, such as hours and seconds. Which fields are supported is defined by the PeriodType class. The default is the standard period type, which supports years, months, weeks, days, hours, minutes, seconds and millis.
When this time period is added to an instant, the effect is of adding each field in turn. As a result, this takes into account daylight savings time. Adding a time period of 1 day to the day before daylight savings starts will only add 23 hours rather than 24 to ensure that the time remains the same. If this is not the behaviour you want, then see Duration.
The definition of a period also affects the equals method. A period of 1 day is not equal to a period of 24 hours, nor 1 hour equal to 60 minutes. This is because periods represent an abstracted definition of a time period (eg. a day may not actually be 24 hours, it might be 23 or 25 at daylight savings boundary). To compare the actual duration of two periods, convert both to durations using toDuration, an operation that emphasises that the result may differ according to the date you choose.
MutablePeriod is mutable and not thread-safe, unless concurrent threads are not invoking mutator methods.

Since:

1.0

Author:

Brian S O'Neill, Stephen Colebourne

See Also:
Period, Serialized Form

Constructor Summary

Constructors
Constructor and Description
`MutablePeriod()` Creates a zero-length period using the standard period type.
`MutablePeriod(int hours, int minutes, int seconds, int millis)` Create a period from a set of field values using the standard set of fields.
`MutablePeriod(int years, int months, int weeks, int days, int hours, int minutes, int seconds, int millis)` Create a period from a set of field values using the standard set of fields.
`MutablePeriod(int years, int months, int weeks, int days, int hours, int minutes, int seconds, int millis, PeriodType type)` Create a period from a set of field values.
`MutablePeriod(long duration)` Creates a period from the given millisecond duration using the standard set of fields.
`MutablePeriod(long duration, Chronology chronology)` Creates a period from the given millisecond duration using the standard set of fields.
`MutablePeriod(long startInstant, long endInstant)` Creates a period from the given interval endpoints using the standard set of fields.
`MutablePeriod(long startInstant, long endInstant, Chronology chrono)` Creates a period from the given interval endpoints using the standard set of fields.
`MutablePeriod(long startInstant, long endInstant, PeriodType type)` Creates a period from the given interval endpoints.
`MutablePeriod(long startInstant, long endInstant, PeriodType type, Chronology chrono)` Creates a period from the given interval endpoints.
`MutablePeriod(long duration, PeriodType type)` Creates a period from the given millisecond duration.
`MutablePeriod(long duration, PeriodType type, Chronology chronology)` Creates a period from the given millisecond duration.
`MutablePeriod(Object period)` Creates a period by converting or copying from another object.
`MutablePeriod(Object period, Chronology chrono)` Creates a period by converting or copying from another object.
`MutablePeriod(Object period, PeriodType type)` Creates a period by converting or copying from another object.
`MutablePeriod(Object period, PeriodType type, Chronology chrono)` Creates a period by converting or copying from another object.
`MutablePeriod(PeriodType type)` Creates a zero-length period using the specified period type.
`MutablePeriod(ReadableDuration duration, ReadableInstant endInstant)` Creates a period from the given duration and end point.
`MutablePeriod(ReadableDuration duration, ReadableInstant endInstant, PeriodType type)` Creates a period from the given duration and end point.
`MutablePeriod(ReadableInstant startInstant, ReadableDuration duration)` Creates a period from the given start point and the duration.
`MutablePeriod(ReadableInstant startInstant, ReadableDuration duration, PeriodType type)` Creates a period from the given start point and the duration.
`MutablePeriod(ReadableInstant startInstant, ReadableInstant endInstant)` Creates a period from the given interval endpoints using the standard set of fields.
`MutablePeriod(ReadableInstant startInstant, ReadableInstant endInstant, PeriodType type)` Creates a period from the given interval endpoints.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(DurationFieldType field, int value)` Adds to the value of one of the fields.
`void`	`add(int years, int months, int weeks, int days, int hours, int minutes, int seconds, int millis)` Adds to each field of this period.
`void`	`add(long duration)` Adds a millisecond duration to this one by dividing the duration into fields and calling `add(ReadablePeriod)`.
`void`	`add(long duration, Chronology chrono)` Adds a millisecond duration to this one by dividing the duration into fields and calling `add(ReadablePeriod)`.
`void`	`add(ReadableDuration duration)` Adds a duration to this one by dividing the duration into fields and calling `add(ReadablePeriod)`.
`void`	`add(ReadableInterval interval)` Adds an interval to this one by dividing the interval into fields and calling `add(ReadablePeriod)`.
`void`	`add(ReadablePeriod period)` Adds a period to this one by adding each field in turn.
`void`	`addDays(int days)` Adds the specified days to the number of days in the period.
`void`	`addHours(int hours)` Adds the specified hours to the number of hours in the period.
`void`	`addMillis(int millis)` Adds the specified millis to the number of millis in the period.
`void`	`addMinutes(int minutes)` Adds the specified minutes to the number of minutes in the period.
`void`	`addMonths(int months)` Adds the specified months to the number of months in the period.
`void`	`addSeconds(int seconds)` Adds the specified seconds to the number of seconds in the period.
`void`	`addWeeks(int weeks)` Adds the specified weeks to the number of weeks in the period.
`void`	`addYears(int years)` Adds the specified years to the number of years in the period.
`void`	`clear()` Clears the period, setting all values back to zero.
`Object`	`clone()` Clone this object.
`MutablePeriod`	`copy()` Clone this object without having to cast the returned object.
`int`	`getDays()` Gets the days field part of the period.
`int`	`getHours()` Gets the hours field part of the period.
`int`	`getMillis()` Gets the millis field part of the period.
`int`	`getMinutes()` Gets the minutes field part of the period.
`int`	`getMonths()` Gets the months field part of the period.
`int`	`getSeconds()` Gets the seconds field part of the period.
`int`	`getWeeks()` Gets the weeks field part of the period.
`int`	`getYears()` Gets the years field part of the period.
`void`	`mergePeriod(ReadablePeriod period)` Merges all the fields from the specified period into this one.
`static MutablePeriod`	`parse(String str)` Parses a `MutablePeriod` from the specified string.
`static MutablePeriod`	`parse(String str, PeriodFormatter formatter)` Parses a `MutablePeriod` from the specified string using a formatter.
`void`	`set(DurationFieldType field, int value)` Sets the value of one of the fields.
`void`	`setDays(int days)` Sets the number of days of the period.
`void`	`setHours(int hours)` Sets the number of hours of the period.
`void`	`setMillis(int millis)` Sets the number of millis of the period.
`void`	`setMinutes(int minutes)` Sets the number of minutes of the period.
`void`	`setMonths(int months)` Sets the number of months of the period.
`void`	`setPeriod(int years, int months, int weeks, int days, int hours, int minutes, int seconds, int millis)` Sets all the fields in one go.
`void`	`setPeriod(long duration)` Sets all the fields in one go from a millisecond duration dividing the fields using the period type.
`void`	`setPeriod(long duration, Chronology chrono)` Sets all the fields in one go from a millisecond duration.
`void`	`setPeriod(long startInstant, long endInstant)` Sets all the fields in one go from a millisecond interval using ISOChronology and dividing the fields using the period type.
`void`	`setPeriod(long startInstant, long endInstant, Chronology chrono)` Sets all the fields in one go from a millisecond interval.
`void`	`setPeriod(ReadableDuration duration)` Sets all the fields in one go from a duration dividing the fields using the period type.
`void`	`setPeriod(ReadableDuration duration, Chronology chrono)` Sets all the fields in one go from a duration dividing the fields using the period type.
`void`	`setPeriod(ReadableInstant start, ReadableInstant end)` Sets all the fields in one go from two instants representing an interval.
`void`	`setPeriod(ReadableInterval interval)` Sets all the fields in one go from an interval using the ISO chronology and dividing the fields using the period type.
`void`	`setPeriod(ReadablePeriod period)` Sets all the fields in one go from another ReadablePeriod.
`void`	`setSeconds(int seconds)` Sets the number of seconds of the period.
`void`	`setValue(int index, int value)` Sets the value of one of the fields by index.
`void`	`setWeeks(int weeks)` Sets the number of weeks of the period.
`void`	`setYears(int years)` Sets the number of years of the period.

Methods inherited from class org.joda.time.base.BasePeriod
addField, addFieldInto, addPeriod, addPeriodInto, checkPeriodType, getPeriodType, getValue, mergePeriodInto, setField, setFieldInto, setValues, toDurationFrom, toDurationTo

Methods inherited from class org.joda.time.base.AbstractPeriod
equals, get, getFieldType, getFieldTypes, getValues, hashCode, indexOf, isSupported, size, toMutablePeriod, toPeriod, toString, toString

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

Methods inherited from interface org.joda.time.ReadablePeriod
equals, get, getFieldType, getPeriodType, getValue, hashCode, isSupported, size, toMutablePeriod, toPeriod, toString

- Constructor Detail
  - MutablePeriod
```
public MutablePeriod()
```
    Creates a zero-length period using the standard period type.
  - MutablePeriod
```
public MutablePeriod(PeriodType type)
```
    Creates a zero-length period using the specified period type.
    
    Parameters:
    type - which set of fields this period supports
  - MutablePeriod
```
public MutablePeriod(int hours,
             int minutes,
             int seconds,
             int millis)
```
    Create a period from a set of field values using the standard set of fields.
    
    Parameters:
    hours - amount of hours in this period
    minutes - amount of minutes in this period
    seconds - amount of seconds in this period
    millis - amount of milliseconds in this period
  - MutablePeriod
```
public MutablePeriod(int years,
             int months,
             int weeks,
             int days,
             int hours,
             int minutes,
             int seconds,
             int millis)
```
    Create a period from a set of field values using the standard set of fields.
    
    Parameters:
    years - amount of years in this period
    months - amount of months in this period
    weeks - amount of weeks in this period
    days - amount of days in this period
    hours - amount of hours in this period
    minutes - amount of minutes in this period
    seconds - amount of seconds in this period
    millis - amount of milliseconds in this period
  - MutablePeriod
```
public MutablePeriod(int years,
             int months,
             int weeks,
             int days,
             int hours,
             int minutes,
             int seconds,
             int millis,
             PeriodType type)
```
    Create a period from a set of field values.
    
    Parameters:
    years - amount of years in this period, which must be zero if unsupported
    months - amount of months in this period, which must be zero if unsupported
    weeks - amount of weeks in this period, which must be zero if unsupported
    days - amount of days in this period, which must be zero if unsupported
    hours - amount of hours in this period, which must be zero if unsupported
    minutes - amount of minutes in this period, which must be zero if unsupported
    seconds - amount of seconds in this period, which must be zero if unsupported
    millis - amount of milliseconds in this period, which must be zero if unsupported
    type - which set of fields this period supports, null means AllType
    
    Throws:
    
    IllegalArgumentException - if an unsupported field's value is non-zero
  - MutablePeriod
```
public MutablePeriod(long duration)
```
    Creates a period from the given millisecond duration using the standard set of fields.
    Only precise fields in the period type will be used. For the standard period type this is the time fields only. Thus the year, month, week and day fields will not be populated.
    If the duration is small, less than one day, then this method will perform as you might expect and split the fields evenly.
    If the duration is larger than one day then all the remaining duration will be stored in the largest available precise field, hours in this case.
    For example, a duration equal to (365 + 60 + 5) days will be converted to ((365 + 60 + 5) * 24) hours by this constructor.
    For more control over the conversion process, you have two options:
    - convert the duration to an Interval, and from there obtain the period
    - specify a period type that contains precise definitions of the day and larger fields, such as the UTC or precise types.
    Parameters:
    duration - the duration, in milliseconds
  - MutablePeriod
```
public MutablePeriod(long duration,
             PeriodType type)
```
    Creates a period from the given millisecond duration.
    Only precise fields in the period type will be used. Imprecise fields will not be populated.
    If the duration is small then this method will perform as you might expect and split the fields evenly.
    If the duration is large then all the remaining duration will be stored in the largest available precise field. For details as to which fields are precise, review the period type javadoc.
    
    Parameters:
    duration - the duration, in milliseconds
    type - which set of fields this period supports, null means standard
  - MutablePeriod
```
public MutablePeriod(long duration,
             Chronology chronology)
```
    Creates a period from the given millisecond duration using the standard set of fields.
    Only precise fields in the period type will be used. Imprecise fields will not be populated.
    If the duration is small then this method will perform as you might expect and split the fields evenly.
    If the duration is large then all the remaining duration will be stored in the largest available precise field. For details as to which fields are precise, review the period type javadoc.
    
    Parameters:
    duration - the duration, in milliseconds
    chronology - the chronology to use to split the duration, null means ISO default
  - MutablePeriod
```
public MutablePeriod(long duration,
             PeriodType type,
             Chronology chronology)
```
    Creates a period from the given millisecond duration.
    Only precise fields in the period type will be used. Imprecise fields will not be populated.
    If the duration is small then this method will perform as you might expect and split the fields evenly.
    If the duration is large then all the remaining duration will be stored in the largest available precise field. For details as to which fields are precise, review the period type javadoc.
    
    Parameters:
    duration - the duration, in milliseconds
    type - which set of fields this period supports, null means standard
    chronology - the chronology to use to split the duration, null means ISO default
  - MutablePeriod
```
public MutablePeriod(long startInstant,
             long endInstant)
```
    Creates a period from the given interval endpoints using the standard set of fields.
    
    Parameters:
    startInstant - interval start, in milliseconds
    endInstant - interval end, in milliseconds
  - MutablePeriod
```
public MutablePeriod(long startInstant,
             long endInstant,
             PeriodType type)
```
    Creates a period from the given interval endpoints.
    
    Parameters:
    startInstant - interval start, in milliseconds
    endInstant - interval end, in milliseconds
    type - which set of fields this period supports, null means standard
  - MutablePeriod
```
public MutablePeriod(long startInstant,
             long endInstant,
             Chronology chrono)
```
    Creates a period from the given interval endpoints using the standard set of fields.
    
    Parameters:
    startInstant - interval start, in milliseconds
    endInstant - interval end, in milliseconds
    chrono - the chronology to use, null means ISO in default zone
  - MutablePeriod
```
public MutablePeriod(long startInstant,
             long endInstant,
             PeriodType type,
             Chronology chrono)
```
    Creates a period from the given interval endpoints.
    
    Parameters:
    startInstant - interval start, in milliseconds
    endInstant - interval end, in milliseconds
    type - which set of fields this period supports, null means standard
    chrono - the chronology to use, null means ISO in default zone
  - MutablePeriod
```
public MutablePeriod(ReadableInstant startInstant,
             ReadableInstant endInstant)
```
    Creates a period from the given interval endpoints using the standard set of fields.
    The chronology of the start instant is used, unless that is null when the chronology of the end instant is used instead.
    
    Parameters:
    startInstant - interval start, null means now
    endInstant - interval end, null means now
  - MutablePeriod
```
public MutablePeriod(ReadableInstant startInstant,
             ReadableInstant endInstant,
             PeriodType type)
```
    Creates a period from the given interval endpoints.
    The chronology of the start instant is used, unless that is null when the chronology of the end instant is used instead.
    
    Parameters:
    startInstant - interval start, null means now
    endInstant - interval end, null means now
    type - which set of fields this period supports, null means AllType
  - MutablePeriod
```
public MutablePeriod(ReadableInstant startInstant,
             ReadableDuration duration)
```
    Creates a period from the given start point and the duration.
    
    Parameters:
    startInstant - the interval start, null means now
    duration - the duration of the interval, null means zero-length
  - MutablePeriod
```
public MutablePeriod(ReadableInstant startInstant,
             ReadableDuration duration,
             PeriodType type)
```
    Creates a period from the given start point and the duration.
    
    Parameters:
    startInstant - the interval start, null means now
    duration - the duration of the interval, null means zero-length
    type - which set of fields this period supports, null means standard
  - MutablePeriod
```
public MutablePeriod(ReadableDuration duration,
             ReadableInstant endInstant)
```
    Creates a period from the given duration and end point.
    
    Parameters:
    duration - the duration of the interval, null means zero-length
    endInstant - the interval end, null means now
  - MutablePeriod
```
public MutablePeriod(ReadableDuration duration,
             ReadableInstant endInstant,
             PeriodType type)
```
    Creates a period from the given duration and end point.
    
    Parameters:
    duration - the duration of the interval, null means zero-length
    endInstant - the interval end, null means now
    type - which set of fields this period supports, null means standard
  - MutablePeriod
```
public MutablePeriod(Object period)
```
    Creates a period by converting or copying from another object.
    The recognised object types are defined in ConverterManager and include ReadablePeriod, ReadableInterval and String. The String formats are described by ISOPeriodFormat.standard().
    
    Parameters:
    period - period to convert
    
    Throws:
    
    IllegalArgumentException - if period is invalid
    
    UnsupportedOperationException - if an unsupported field's value is non-zero
  - MutablePeriod
```
public MutablePeriod(Object period,
             PeriodType type)
```
    Creates a period by converting or copying from another object.
    The recognised object types are defined in ConverterManager and include ReadablePeriod, ReadableInterval and String. The String formats are described by ISOPeriodFormat.standard().
    
    Parameters:
    period - period to convert
    type - which set of fields this period supports, null means use converter
    
    Throws:
    
    IllegalArgumentException - if period is invalid
    
    UnsupportedOperationException - if an unsupported field's value is non-zero
  - MutablePeriod
```
public MutablePeriod(Object period,
             Chronology chrono)
```
    Creates a period by converting or copying from another object.
    The recognised object types are defined in ConverterManager and include ReadablePeriod, ReadableInterval and String. The String formats are described by ISOPeriodFormat.standard().
    
    Parameters:
    period - period to convert
    chrono - the chronology to use, null means ISO in default zone
    
    Throws:
    
    IllegalArgumentException - if period is invalid
    
    UnsupportedOperationException - if an unsupported field's value is non-zero
  - MutablePeriod
```
public MutablePeriod(Object period,
             PeriodType type,
             Chronology chrono)
```
    Creates a period by converting or copying from another object.
    The recognised object types are defined in ConverterManager and include ReadablePeriod, ReadableInterval and String. The String formats are described by ISOPeriodFormat.standard().
    
    Parameters:
    period - period to convert
    type - which set of fields this period supports, null means use converter
    chrono - the chronology to use, null means ISO in default zone
    
    Throws:
    
    IllegalArgumentException - if period is invalid
    
    UnsupportedOperationException - if an unsupported field's value is non-zero
- Method Detail
  - parse
```
public static MutablePeriod parse(String str)
```
    Parses a MutablePeriod from the specified string.
    This uses ISOPeriodFormat.standard().
    
    Parameters:
    str - the string to parse, not null
    Since:
    
    2.0
  - parse
```
public static MutablePeriod parse(String str,
                  PeriodFormatter formatter)
```
    Parses a MutablePeriod 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
  - clear
```
public void clear()
```
    Clears the period, setting all values back to zero.
    
    Specified by:
    
    clear in interface ReadWritablePeriod
  - setValue
```
public void setValue(int index,
            int value)
```
    Sets the value of one of the fields by index.
    
    Specified by:
    
    setValue in interface ReadWritablePeriod
    
    Overrides:
    
    setValue in class BasePeriod
    
    Parameters:
    index - the field index
    value - the new value for the field
    
    Throws:
    
    IndexOutOfBoundsException - if the index is invalid
  - set
```
public void set(DurationFieldType field,
       int value)
```
    Sets the value of one of the fields.
    The field type specified must be one of those that is supported by the period.
    
    Specified by:
    
    set in interface ReadWritablePeriod
    
    Parameters:
    field - a DurationFieldType instance that is supported by this period, not null
    value - the new value for the field
    
    Throws:
    
    IllegalArgumentException - if the field is null or not supported
  - setPeriod
```
public void setPeriod(ReadablePeriod period)
```
    Sets all the fields in one go from another ReadablePeriod.
    
    Specified by:
    
    setPeriod in interface ReadWritablePeriod
    
    Overrides:
    
    setPeriod in class BasePeriod
    
    Parameters:
    period - the period to set, null means zero length period
    
    Throws:
    
    IllegalArgumentException - if an unsupported field's value is non-zero
  - setPeriod
```
public void setPeriod(int years,
             int months,
             int weeks,
             int days,
             int hours,
             int minutes,
             int seconds,
             int millis)
```
    Sets all the fields in one go.
    
    Specified by:
    
    setPeriod in interface ReadWritablePeriod
    
    Overrides:
    
    setPeriod in class BasePeriod
    
    Parameters:
    years - amount of years in this period, which must be zero if unsupported
    months - amount of months in this period, which must be zero if unsupported
    weeks - amount of weeks in this period, which must be zero if unsupported
    days - amount of days in this period, which must be zero if unsupported
    hours - amount of hours in this period, which must be zero if unsupported
    minutes - amount of minutes in this period, which must be zero if unsupported
    seconds - amount of seconds in this period, which must be zero if unsupported
    millis - amount of milliseconds in this period, which must be zero if unsupported
    
    Throws:
    
    IllegalArgumentException - if an unsupported field's value is non-zero
  - setPeriod
```
public void setPeriod(ReadableInterval interval)
```
    Sets all the fields in one go from an interval using the ISO chronology and dividing the fields using the period type.
    
    Specified by:
    
    setPeriod in interface ReadWritablePeriod
    
    Parameters:
    interval - the interval to set, null means zero length
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(ReadableInstant start,
             ReadableInstant end)
```
    Sets all the fields in one go from two instants representing an interval.
    The chronology of the start instant is used, unless that is null when the chronology of the end instant is used instead.
    
    Parameters:
    start - the start instant, null means now
    end - the end instant, null means now
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(long startInstant,
             long endInstant)
```
    Sets all the fields in one go from a millisecond interval using ISOChronology and dividing the fields using the period type.
    
    Parameters:
    startInstant - interval start, in milliseconds
    endInstant - interval end, in milliseconds
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(long startInstant,
             long endInstant,
             Chronology chrono)
```
    Sets all the fields in one go from a millisecond interval.
    
    Parameters:
    startInstant - interval start, in milliseconds
    endInstant - interval end, in milliseconds
    chrono - the chronology to use, null means ISO chronology
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(ReadableDuration duration)
```
    Sets all the fields in one go from a duration dividing the fields using the period type.
    When dividing the duration, only precise fields in the period type will be used. For large durations, all the remaining duration will be stored in the largest available precise field.
    
    Parameters:
    duration - the duration to set, null means zero length
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(ReadableDuration duration,
             Chronology chrono)
```
    Sets all the fields in one go from a duration dividing the fields using the period type.
    When dividing the duration, only precise fields in the period type will be used. For large durations, all the remaining duration will be stored in the largest available precise field.
    
    Parameters:
    duration - the duration to set, null means zero length
    chrono - the chronology to use, null means ISO default
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(long duration)
```
    Sets all the fields in one go from a millisecond duration dividing the fields using the period type.
    When dividing the duration, only precise fields in the period type will be used. For large durations, all the remaining duration will be stored in the largest available precise field.
    
    Parameters:
    duration - the duration, in milliseconds
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - setPeriod
```
public void setPeriod(long duration,
             Chronology chrono)
```
    Sets all the fields in one go from a millisecond duration.
    When dividing the duration, only precise fields in the period type will be used. For large durations, all the remaining duration will be stored in the largest available precise field.
    
    Parameters:
    duration - the duration, in milliseconds
    chrono - the chronology to use, null means ISO chronology
    
    Throws:
    
    ArithmeticException - if the set exceeds the capacity of the period
  - add
```
public void add(DurationFieldType field,
       int value)
```
    Adds to the value of one of the fields.
    The field type specified must be one of those that is supported by the period.
    
    Specified by:
    
    add in interface ReadWritablePeriod
    
    Parameters:
    field - a DurationFieldType instance that is supported by this period, not null
    value - the value to add to the field
    
    Throws:
    
    IllegalArgumentException - if the field is null or not supported
  - add
```
public void add(ReadablePeriod period)
```
    Adds a period to this one by adding each field in turn.
    
    Specified by:
    
    add in interface ReadWritablePeriod
    
    Parameters:
    period - the period to add, null means add nothing
    
    Throws:
    
    IllegalArgumentException - if the period being added contains a field not supported by this period
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - add
```
public void add(int years,
       int months,
       int weeks,
       int days,
       int hours,
       int minutes,
       int seconds,
       int millis)
```
    Adds to each field of this period.
    
    Specified by:
    
    add in interface ReadWritablePeriod
    
    Parameters:
    years - amount of years to add to this period, which must be zero if unsupported
    months - amount of months to add to this period, which must be zero if unsupported
    weeks - amount of weeks to add to this period, which must be zero if unsupported
    days - amount of days to add to this period, which must be zero if unsupported
    hours - amount of hours to add to this period, which must be zero if unsupported
    minutes - amount of minutes to add to this period, which must be zero if unsupported
    seconds - amount of seconds to add to this period, which must be zero if unsupported
    millis - amount of milliseconds to add to this period, which must be zero if unsupported
    
    Throws:
    
    IllegalArgumentException - if the period being added contains a field not supported by this period
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - add
```
public void add(ReadableInterval interval)
```
    Adds an interval to this one by dividing the interval into fields and calling add(ReadablePeriod).
    
    Specified by:
    
    add in interface ReadWritablePeriod
    
    Parameters:
    interval - the interval to add, null means add nothing
    
    Throws:
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - add
```
public void add(ReadableDuration duration)
```
    Adds a duration to this one by dividing the duration into fields and calling add(ReadablePeriod).
    
    Parameters:
    duration - the duration to add, null means add nothing
    
    Throws:
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - add
```
public void add(long duration)
```
    Adds a millisecond duration to this one by dividing the duration into fields and calling add(ReadablePeriod).
    When dividing the duration, only precise fields in the period type will be used. For large durations, all the remaining duration will be stored in the largest available precise field.
    
    Parameters:
    duration - the duration, in milliseconds
    
    Throws:
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - add
```
public void add(long duration,
       Chronology chrono)
```
    Adds a millisecond duration to this one by dividing the duration into fields and calling add(ReadablePeriod).
    When dividing the duration, only precise fields in the period type will be used. For large durations, all the remaining duration will be stored in the largest available precise field.
    
    Parameters:
    duration - the duration, in milliseconds
    chrono - the chronology to use, null means ISO default
    
    Throws:
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - mergePeriod
```
public void mergePeriod(ReadablePeriod period)
```
    Merges all the fields from the specified period into this one.
    Fields that are not present in the specified period are left unaltered.
    
    Overrides:
    
    mergePeriod in class BasePeriod
    
    Parameters:
    period - the period to set, null ignored
    
    Throws:
    
    IllegalArgumentException - if an unsupported field's value is non-zero
  - getYears
```
public int getYears()
```
    Gets the years field part of the period.
    
    Returns:
    the number of years in the period, zero if unsupported
  - getMonths
```
public int getMonths()
```
    Gets the months field part of the period.
    
    Returns:
    the number of months in the period, zero if unsupported
  - getWeeks
```
public int getWeeks()
```
    Gets the weeks field part of the period.
    
    Returns:
    the number of weeks in the period, zero if unsupported
  - getDays
```
public int getDays()
```
    Gets the days field part of the period.
    
    Returns:
    the number of days in the period, zero if unsupported
  - getHours
```
public int getHours()
```
    Gets the hours field part of the period.
    
    Returns:
    the number of hours in the period, zero if unsupported
  - getMinutes
```
public int getMinutes()
```
    Gets the minutes field part of the period.
    
    Returns:
    the number of minutes in the period, zero if unsupported
  - getSeconds
```
public int getSeconds()
```
    Gets the seconds field part of the period.
    
    Returns:
    the number of seconds in the period, zero if unsupported
  - getMillis
```
public int getMillis()
```
    Gets the millis field part of the period.
    
    Returns:
    the number of millis in the period, zero if unsupported
  - setYears
```
public void setYears(int years)
```
    Sets the number of years of the period.
    
    Specified by:
    
    setYears in interface ReadWritablePeriod
    
    Parameters:
    years - the number of years
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addYears
```
public void addYears(int years)
```
    Adds the specified years to the number of years in the period.
    
    Specified by:
    
    addYears in interface ReadWritablePeriod
    
    Parameters:
    years - the number of years
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setMonths
```
public void setMonths(int months)
```
    Sets the number of months of the period.
    
    Specified by:
    
    setMonths in interface ReadWritablePeriod
    
    Parameters:
    months - the number of months
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addMonths
```
public void addMonths(int months)
```
    Adds the specified months to the number of months in the period.
    
    Specified by:
    
    addMonths in interface ReadWritablePeriod
    
    Parameters:
    months - the number of months
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setWeeks
```
public void setWeeks(int weeks)
```
    Sets the number of weeks of the period.
    
    Specified by:
    
    setWeeks in interface ReadWritablePeriod
    
    Parameters:
    weeks - the number of weeks
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addWeeks
```
public void addWeeks(int weeks)
```
    Adds the specified weeks to the number of weeks in the period.
    
    Specified by:
    
    addWeeks in interface ReadWritablePeriod
    
    Parameters:
    weeks - the number of weeks
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setDays
```
public void setDays(int days)
```
    Sets the number of days of the period.
    
    Specified by:
    
    setDays in interface ReadWritablePeriod
    
    Parameters:
    days - the number of days
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addDays
```
public void addDays(int days)
```
    Adds the specified days to the number of days in the period.
    
    Specified by:
    
    addDays in interface ReadWritablePeriod
    
    Parameters:
    days - the number of days
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setHours
```
public void setHours(int hours)
```
    Sets the number of hours of the period.
    
    Specified by:
    
    setHours in interface ReadWritablePeriod
    
    Parameters:
    hours - the number of hours
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addHours
```
public void addHours(int hours)
```
    Adds the specified hours to the number of hours in the period.
    
    Specified by:
    
    addHours in interface ReadWritablePeriod
    
    Parameters:
    hours - the number of hours
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setMinutes
```
public void setMinutes(int minutes)
```
    Sets the number of minutes of the period.
    
    Specified by:
    
    setMinutes in interface ReadWritablePeriod
    
    Parameters:
    minutes - the number of minutes
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addMinutes
```
public void addMinutes(int minutes)
```
    Adds the specified minutes to the number of minutes in the period.
    
    Specified by:
    
    addMinutes in interface ReadWritablePeriod
    
    Parameters:
    minutes - the number of minutes
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setSeconds
```
public void setSeconds(int seconds)
```
    Sets the number of seconds of the period.
    
    Specified by:
    
    setSeconds in interface ReadWritablePeriod
    
    Parameters:
    seconds - the number of seconds
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addSeconds
```
public void addSeconds(int seconds)
```
    Adds the specified seconds to the number of seconds in the period.
    
    Specified by:
    
    addSeconds in interface ReadWritablePeriod
    
    Parameters:
    seconds - the number of seconds
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - setMillis
```
public void setMillis(int millis)
```
    Sets the number of millis of the period.
    
    Specified by:
    
    setMillis in interface ReadWritablePeriod
    
    Parameters:
    millis - the number of millis
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
  - addMillis
```
public void addMillis(int millis)
```
    Adds the specified millis to the number of millis in the period.
    
    Specified by:
    
    addMillis in interface ReadWritablePeriod
    
    Parameters:
    millis - the number of millis
    
    Throws:
    
    IllegalArgumentException - if field is not supported and the value is non-zero
    
    ArithmeticException - if the addition exceeds the capacity of the period
  - copy
```
public MutablePeriod 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.

Class MutablePeriod

Constructor Summary

Method Summary

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

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

Methods inherited from class java.lang.Object

Methods inherited from interface org.joda.time.ReadablePeriod

Constructor Detail

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

MutablePeriod

Method Detail

parse

parse

clear

setValue

set

setPeriod

setPeriod

setPeriod

setPeriod

setPeriod

setPeriod

setPeriod

setPeriod

setPeriod

setPeriod

add

add

add

add

add

add

add

mergePeriod

getYears

getMonths

getWeeks

getDays

getHours

getMinutes

getSeconds

getMillis

setYears

addYears

setMonths

addMonths

setWeeks

addWeeks

setDays

addDays

setHours

addHours

setMinutes

addMinutes

setSeconds

addSeconds

setMillis

addMillis

copy