org.goda.time.field

Class PreciseDateTimeField

java.lang.Object

org.goda.time.Field

org.goda.time.DateTimeField

org.goda.time.field.BaseDateTimeField

org.goda.time.field.PreciseDurationDateTimeField

org.goda.time.field.PreciseDateTimeField

public class PreciseDateTimeField
extends PreciseDurationDateTimeField

Precise datetime field, composed of two precise duration fields.

This DateTimeField is useful for defining DateTimeFields that are composed of precise durations, like time of day fields. If either duration field is imprecise, then an ImpreciseDateTimeField may be used instead.

PreciseDateTimeField is thread-safe and immutable.

Since:

1.0

Author:

Brian S O'Neill, Stephen Colebourne

See Also:

ImpreciseDateTimeField

Constructor Summary

Constructors

Constructor and Description
PreciseDateTimeField(DateTimeFieldType type, DurationField unit, DurationField range) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
long	addWrapField(long instant, int amount) Add to the component of the specified time instant, wrapping around within that component if necessary.
int	get(long instant) Get the amount of fractional units from the specified time instant.
int	getMaximumValue() Get the maximum value for the field.
int	getRange() Returns the range of the field in the field's units.
DurationField	getRangeDurationField() Returns the range duration of this field.
long	set(long instant, int value) Set the specified amount of units to the specified time instant.

Methods inherited from class org.goda.time.field.PreciseDurationDateTimeField

getDurationField, getMaximumValueForSet, getMinimumValue, getUnitMillis, isLenient, remainder, roundCeiling, roundFloor

Methods inherited from class org.goda.time.field.BaseDateTimeField

add, add, add, addWrapField, addWrapPartial, convertText, getAsShortText, getAsShortText, getAsShortText, getAsShortText, getAsShortText, getAsText, getAsText, getAsText, getAsText, getAsText, getDifference, getDifferenceAsLong, getLeapAmount, getLeapDurationField, getMaximumShortTextLength, getMaximumTextLength, getMaximumValue, getMaximumValue, getMaximumValue, getMinimumValue, getMinimumValue, getMinimumValue, getName, getType, isLeap, isSupported, roundHalfCeiling, roundHalfEven, roundHalfFloor, set, set, set, set, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

PreciseDateTimeField

public PreciseDateTimeField(DateTimeFieldType type,
                    DurationField unit,
                    DurationField range)

Constructor.

Parameters:

type - the field type this field uses

unit - precise unit duration, like "seconds()".

range - precise range duration, preferably a multiple of the unit, like "minutes()".

Throws:

IllegalArgumentException - if either duration field is imprecise

IllegalArgumentException - if unit milliseconds is less than one or effective value range is less than two.

Method Detail

get

public int get(long instant)

Get the amount of fractional units from the specified time instant.

Specified by:

get in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to query

Returns:

the amount of fractional units extracted from the input.

addWrapField

public long addWrapField(long instant,
                int amount)

Add to the component of the specified time instant, wrapping around within that component if necessary.

Overrides:

addWrapField in class BaseDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to add to

amount - the amount of units to add (can be negative).

Returns:

the updated time instant.

set

public long set(long instant,
       int value)

Set the specified amount of units to the specified time instant.

Overrides:

set in class PreciseDurationDateTimeField

Parameters:

instant - the milliseconds from 1970-01-01T00:00:00Z to set in

value - value of units to set.

Returns:

the updated time instant.

Throws:

IllegalArgumentException - if value is too large or too small.

getRangeDurationField

public DurationField getRangeDurationField()

Returns the range duration of this field. For example, if this field represents "minute of hour", then the range duration field is an hours.

Specified by:

getRangeDurationField in class BaseDateTimeField

Returns:

the range duration of this field, or null if field has no range

getMaximumValue

public int getMaximumValue()

Get the maximum value for the field.

Specified by:

getMaximumValue in class BaseDateTimeField

Returns:

the maximum value

getRange

public int getRange()

Returns the range of the field in the field's units.

For example, 60 for seconds per minute. The field is allowed values from 0 to range - 1.

Returns:

unit range