Package org.apache.calcite.util

Class DateString

java.lang.Object

org.apache.calcite.util.DateString

All Implemented Interfaces:

java.lang.Comparable<DateString>

public class DateString
extends java.lang.Object
implements java.lang.Comparable<DateString>

Date literal.

Immutable, internally represented as a string (in ISO format).

Field Summary

Fields

Modifier and Type	Field	Description
private static java.util.regex.Pattern	PATTERN
(package private) java.lang.String	v

Constructor Summary

Constructors

Modifier	Constructor	Description
	DateString(int year, int month, int day)	Creates a DateString for year, month, day values.
	DateString(java.lang.String v)	Creates a DateString.
private	DateString(java.lang.String v, boolean ignore)	Internal constructor, no validation.

Method Summary

Modifier and Type	Method	Description
int	compareTo(DateString o)
boolean	equals(java.lang.Object o)
static DateString	fromCalendarFields(java.util.Calendar calendar)	Creates a DateString from a Calendar.
static DateString	fromDaysSinceEpoch(int days)	Creates a DateString that is a given number of days since the epoch.
private int	getDay()
int	getDaysSinceEpoch()	Returns the number of days since the epoch.
long	getMillisSinceEpoch()	Returns the number of milliseconds since the epoch.
private int	getMonth()
private int	getYear()
int	hashCode()
java.util.Calendar	toCalendar()
java.lang.String	toString()
private static java.lang.String	ymd(int year, int month, int day)	Validates a year-month-date and converts to a string.

Methods inherited from class java.lang.Object

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

Field Detail

PATTERN

private static final java.util.regex.Pattern PATTERN

v

final java.lang.String v

Constructor Detail

DateString

private DateString(java.lang.String v,
                   boolean ignore)

Internal constructor, no validation.

DateString

public DateString(java.lang.String v)

Creates a DateString.

DateString

public DateString(int year,
                  int month,
                  int day)

Creates a DateString for year, month, day values.

Method Detail

ymd

private static java.lang.String ymd(int year,
                                    int month,
                                    int day)

Validates a year-month-date and converts to a string.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

compareTo

public int compareTo(@Nonnull
                     DateString o)

Specified by:

compareTo in interface java.lang.Comparable<DateString>

fromCalendarFields

public static DateString fromCalendarFields(java.util.Calendar calendar)

Creates a DateString from a Calendar.

getDaysSinceEpoch

public int getDaysSinceEpoch()

Returns the number of days since the epoch.

getYear

private int getYear()

getMonth

private int getMonth()

getDay

private int getDay()

fromDaysSinceEpoch

public static DateString fromDaysSinceEpoch(int days)

Creates a DateString that is a given number of days since the epoch.

getMillisSinceEpoch

public long getMillisSinceEpoch()

Returns the number of milliseconds since the epoch. Always a multiple of 86,400,000 (the number of milliseconds in a day).

toCalendar

public java.util.Calendar toCalendar()