org.gvsig.timesupport

Interface RelativeInstant

All Superinterfaces:

java.lang.Cloneable, Instant, Time

All Known Subinterfaces:

EditableRelativeInstant

All Known Implementing Classes:

DefaultEditableRelativeInstant, DefaultRelativeInstant

public interface RelativeInstant
extends Instant, Cloneable

A relative instant is defined like an instant in the datetime continuum specified as a number of milliseconds from 1970-01-01T00:00Z. This definition of milliseconds is consistent with that of the JDK in Date or Calendar.

It contains also a Chronology which determines how the millisecond instant value is converted into the date time fields. The default Chronology can be set using the TimeSupportManager class. (e.g: 1st January 2010)

A huge part of the documentation of this class has been retrieved from the joda-time library.

See Also:

http://joda-time.sourceforge.net, https://gvsig.org/web/projects/gvsig-desktop/docs/devel/org-gvsig-sensors/1-0.0/analysis-and-design/detailed-view/time-support/libraries/org-gvsig-timesupport-lib

Method Summary

Modifier and Type	Method and Description
int	compareTo(Instant instant) Compares this object with the specified object for ascending millisecond instant order.
int	getDayOfMonth() Get the day of month field value.
EditableRelativeInstant	getEditableCopy() Get an editable copy used to edit other instance of a relative instant.
int	getHourOfDay() Get the hour of day field value.
int	getMillisOfSecond() Get the millis of second field value.
int	getMinuteOfDay() Get the minute of day field value.
int	getMinuteOfHour() Get the minute of hour field value.
int	getMonthOfYear() Get the month of year field value.
int	getSecondOfDay() Get the second of day field value.
int	getSecondOfMinute() Get the second of minute field value.
int	getYear() Get the year field value.
java.util.Date	toDate() Get the date time as a java.util.Date.
long	toMillis() Gets the milliseconds of the datetime instant from the Java epoch of 1970-01-01T00:00:00Z.

Methods inherited from interface org.gvsig.timesupport.Instant

isAfter, isBefore, isEqual, toString

Methods inherited from interface org.gvsig.timesupport.Time

getChronology, intersects, isAbsolute, isInstant, isInterval, isRelative

Methods inherited from interface org.gvsig.tools.lang.Cloneable

clone, cloneQuietly, cloneQuietly

Method Detail

toDate

java.util.Date toDate()

Get the date time as a java.util.Date.

The Date object created has exactly the same millisecond instant as this object.

Returns:

a Date initialised with this relative instant

compareTo

int compareTo(Instant instant)

Compares this object with the specified object for ascending millisecond instant order. This ordering is inconsistent with equals, as it ignores the Chronology.

Parameters:

instant - a readable instant to check against

Returns:

negative value if this is less, 0 if equal, or positive value if greater

toMillis

long toMillis()

Gets the milliseconds of the datetime instant from the Java epoch of 1970-01-01T00:00:00Z.

Returns:

the number of milliseconds since 1970-01-01T00:00:00Z

getYear

int getYear()

Get the year field value.

Returns:

the year

getMonthOfYear

int getMonthOfYear()

Get the month of year field value.

Returns:

the month of year

getDayOfMonth

int getDayOfMonth()

Get the day of month field value.

Returns:

the day of month

getHourOfDay

int getHourOfDay()

Get the hour of day field value.

Returns:

the hour of month

getMinuteOfDay

int getMinuteOfDay()

Get the minute of day field value.

Returns:

the minute of day

getMinuteOfHour

int getMinuteOfHour()

Get the minute of hour field value.

Returns:

the minute of hour

getSecondOfDay

int getSecondOfDay()

Get the second of day field value.

Returns:

the second of day

getSecondOfMinute

int getSecondOfMinute()

Get the second of minute field value.

Returns:

the second of minute

getMillisOfSecond

int getMillisOfSecond()

Get the millis of second field value.

Returns:

the millis of second

getEditableCopy

EditableRelativeInstant getEditableCopy()

Get an editable copy used to edit other instance of a relative instant. The new copy is initialized with the values of this intant.

Returns:

a copy to edit the instant