org.datavec.dataframe.columns.packeddata

Class PackedLocalDateTime

java.lang.Object

org.datavec.dataframe.columns.packeddata.PackedLocalDateTime

public class PackedLocalDateTime
extends java.lang.Object

A short localdatetime packed into a single long value. The long is comprised of an int for the date and an int for the time

The bytes are packed into the date int as: First two bytes: short (year) next byte (month of year) last byte (day of month)

The bytes are packed into the time int as First byte: hourOfDay next byte: minuteOfHour last two bytes (short): millisecond of minute

Storing the millisecond of minute in an short requires that we treat the short as if it were unsigned. Unfortunately, Neither Java nor Guava provide unsigned short support so we use char, which is a 16-bit unsigned int to store values of up to 60,000 milliseconds (60 secs * 1000)

Constructor Summary

Constructors

Constructor and Description
PackedLocalDateTime()

Method Summary

Modifier and Type	Method and Description
static boolean	AM(long packedDateTime) Returns true if the time is in the AM or "before noon".
static java.time.LocalDateTime	asLocalDateTime(long dateTime)
static long	create(int date, int time)
static int	date(long packedDateTIme)
static byte	getDayOfMonth(long date)
static java.time.DayOfWeek	getDayOfWeek(long packedDateTime)
static int	getDayOfYear(long packedDateTime)
static byte	getHour(long packedLocalDateTime)
static long	getMillisecondOfDay(long packedLocalDateTime)
static short	getMillisecondOfMinute(long packedLocalDateTime)
static byte	getMinute(long packedLocalDateTime)
static int	getMinuteOfDay(long packedLocalDateTime)
static java.time.Month	getMonth(long packedDateTime)
static byte	getMonthValue(long dateTime)
static byte	getSecond(int packedLocalDateTime)
static byte	getSecond(long packedLocalDateTime)
static int	getSecondOfDay(long packedLocalDateTime)
static short	getYear(int date)
static short	getYear(long dateTime)
static boolean	isAfter(long packedDateTime, long value)
static boolean	isBefore(long packedDateTime, long value)
static boolean	isFirstDayOfMonth(long packedDateTime)
static boolean	isFriday(long packedDateTime)
static boolean	isInApril(long packedDateTime)
static boolean	isInAugust(long packedDateTime)
static boolean	isInDecember(long packedDateTime)
static boolean	isInFebruary(long packedDateTime)
static boolean	isInJanuary(long packedDateTime)
static boolean	isInJuly(long packedDateTime)
static boolean	isInJune(long packedDateTime)
static boolean	isInMarch(long packedDateTime)
static boolean	isInMay(long packedDateTime)
static boolean	isInNovember(long packedDateTime)
static boolean	isInOctober(long packedDateTime)
static boolean	isInQ1(long packedDateTime)
static boolean	isInQ2(long packedDateTime)
static boolean	isInQ3(long packedDateTime)
static boolean	isInQ4(long packedDateTime)
static boolean	isInSeptember(long packedDateTime)
static boolean	isInYear(long packedDateTime, int year)
static boolean	isLastDayOfMonth(long packedDateTime)
static boolean	isLeapYear(long packedDateTime)
static boolean	isMidnight(long packedDateTime)
static boolean	isMonday(long packedDateTime)
static boolean	isNoon(long packedDateTime)
static boolean	isSaturday(long packedDateTime)
static boolean	isSunday(long packedDateTime)
static boolean	isThursday(long packedDateTime)
static boolean	isTuesday(long packedDateTime)
static boolean	isWednesday(long packedDateTime)
static int	lengthOfMonth(long packedDateTime)
int	lengthOfYear(long packedDateTime)
static long	pack(java.util.Date date)
static long	pack(java.time.LocalDate date, java.time.LocalTime time)
static long	pack(java.time.LocalDateTime dateTime)
static long	pack(short yr, byte m, byte d, byte hr, byte min, byte s, byte n)
static boolean	PM(long packedDateTime) Returns true if the time is in the PM or "after noon".
static int	time(long packedDateTIme)
static java.lang.String	toString(long dateTime)

Methods inherited from class java.lang.Object

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

Constructor Detail

PackedLocalDateTime

public PackedLocalDateTime()

Method Detail

getDayOfMonth

public static byte getDayOfMonth(long date)

getYear

public static short getYear(int date)

getYear

public static short getYear(long dateTime)

asLocalDateTime

public static java.time.LocalDateTime asLocalDateTime(long dateTime)

getMonthValue

public static byte getMonthValue(long dateTime)

pack

public static long pack(java.time.LocalDate date,
                        java.time.LocalTime time)

pack

public static long pack(java.time.LocalDateTime dateTime)

pack

public static long pack(java.util.Date date)

pack

public static long pack(short yr,
                        byte m,
                        byte d,
                        byte hr,
                        byte min,
                        byte s,
                        byte n)

date

public static int date(long packedDateTIme)

time

public static int time(long packedDateTIme)

toString

public static java.lang.String toString(long dateTime)

getDayOfYear

public static int getDayOfYear(long packedDateTime)

isLeapYear

public static boolean isLeapYear(long packedDateTime)

getMonth

public static java.time.Month getMonth(long packedDateTime)

lengthOfMonth

public static int lengthOfMonth(long packedDateTime)

lengthOfYear

public int lengthOfYear(long packedDateTime)

getDayOfWeek

public static java.time.DayOfWeek getDayOfWeek(long packedDateTime)

isInQ1

public static boolean isInQ1(long packedDateTime)

isInQ2

public static boolean isInQ2(long packedDateTime)

isInQ3

public static boolean isInQ3(long packedDateTime)

isInQ4

public static boolean isInQ4(long packedDateTime)

isAfter

public static boolean isAfter(long packedDateTime,
                              long value)

isBefore

public static boolean isBefore(long packedDateTime,
                               long value)

isSunday

public static boolean isSunday(long packedDateTime)

isMonday

public static boolean isMonday(long packedDateTime)

isTuesday

public static boolean isTuesday(long packedDateTime)

isWednesday

public static boolean isWednesday(long packedDateTime)

isThursday

public static boolean isThursday(long packedDateTime)

isFriday

public static boolean isFriday(long packedDateTime)

isSaturday

public static boolean isSaturday(long packedDateTime)

isFirstDayOfMonth

public static boolean isFirstDayOfMonth(long packedDateTime)

isInJanuary

public static boolean isInJanuary(long packedDateTime)

isInFebruary

public static boolean isInFebruary(long packedDateTime)

isInMarch

public static boolean isInMarch(long packedDateTime)

isInApril

public static boolean isInApril(long packedDateTime)

isInMay

public static boolean isInMay(long packedDateTime)

isInJune

public static boolean isInJune(long packedDateTime)

isInJuly

public static boolean isInJuly(long packedDateTime)

isInAugust

public static boolean isInAugust(long packedDateTime)

isInSeptember

public static boolean isInSeptember(long packedDateTime)

isInOctober

public static boolean isInOctober(long packedDateTime)

isInNovember

public static boolean isInNovember(long packedDateTime)

isInDecember

public static boolean isInDecember(long packedDateTime)

isLastDayOfMonth

public static boolean isLastDayOfMonth(long packedDateTime)

isInYear

public static boolean isInYear(long packedDateTime,
                               int year)

isMidnight

public static boolean isMidnight(long packedDateTime)

isNoon

public static boolean isNoon(long packedDateTime)

AM

public static boolean AM(long packedDateTime)

Returns true if the time is in the AM or "before noon". Note: we follow the convention that 12:00 NOON is PM and 12 MIDNIGHT is AM

PM

public static boolean PM(long packedDateTime)

Returns true if the time is in the PM or "after noon". Note: we follow the convention that 12:00 NOON is PM and 12 MIDNIGHT is AM

getMinuteOfDay

public static int getMinuteOfDay(long packedLocalDateTime)

getSecond

public static byte getSecond(int packedLocalDateTime)

getHour

public static byte getHour(long packedLocalDateTime)

getMinute

public static byte getMinute(long packedLocalDateTime)

getSecond

public static byte getSecond(long packedLocalDateTime)

getSecondOfDay

public static int getSecondOfDay(long packedLocalDateTime)

getMillisecondOfMinute

public static short getMillisecondOfMinute(long packedLocalDateTime)

getMillisecondOfDay

public static long getMillisecondOfDay(long packedLocalDateTime)

create

public static long create(int date,
                          int time)