WebLogic Server 6.1 API Reference

weblogic.jdbc.informix4
Class Day

java.lang.Object
  |
  +--weblogic.jdbc.informix4.Day

public class Day

extends java.lang.Object

implements java.lang.Cloneable

Author:

Copyright © 2001 BEA Systems, Inc. All Rights Reserved.

Constructor Summary

Day()
Constructs today's date

Day(int yyyy, int m, int d)
Constructs a specific date

Method Summary

void	advance(int n) Advances this day by n days.
void	advanceMonths(int n) Advances this day by n months worth of days.
void	advanceYears(int n) Advances this day by n years worth of days.
java.lang.Object	clone() Makes a bitwise copy of a Day object
int	daysBetween(Day b) The number of days between this and day parameter
protected int	daysInMonth(int inMonth, int inYear)
protected int	daysInYear(int inYear) Returns the number of days in a given year.
int	getDay()
int	getMonth()
int	getYear()
protected boolean	gregorianLeapYear(int inYear) Returns true if the year is a Gregorian leap year.
protected int	julianDaysInMonth(int inMonth, int inYear) Returns the number of days in a given month and year assuming Julian calandar.
protected boolean	julianLeapYear(int inYear) Returns true if the year is a Julian leap year.
java.lang.String	toString() A string representation of the day
int	weekday() Gets the weekday

Methods inherited from class java.lang.Object

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

Constructor Detail

Day

public Day()

Constructs today's date

Day

public Day(int yyyy,
           int m,
           int d)

Constructs a specific date

Parameters:

yyyy - year (full year, e.g., 1996, not starting from 1900)

m - month

d - day

Throws:

java.lang.IllegalArgumentException - if yyyy m d not a valid date

Method Detail

advance

public void advance(int n)

Advances this day by n days. For example. d.advance(30) adds thirdy days to d

Parameters:

n - the number of days by which to change this day (can be < 0)

gregorianLeapYear

protected boolean gregorianLeapYear(int inYear)

Returns true if the year is a Gregorian leap year.

Note: This method only works for years from -7 to 3199

Parameters:

inYear - to check

Returns:

true if the year is a leap year

julianLeapYear

protected boolean julianLeapYear(int inYear)

Returns true if the year is a Julian leap year.

Note: This method only works for years from -7 to 1582

Parameters:

inYear - to check

Returns:

true if the year is a leap year

julianDaysInMonth

protected int julianDaysInMonth(int inMonth,
                                int inYear)

Returns the number of days in a given month and year assuming Julian calandar.

Note: This method only works for years from -7 to 09.1582.

Parameters:

inMonth - is the month to get the number of days for.

inYear - is the year we want days in inMonth for.

Returns:

number of days in a given month

daysInMonth

protected int daysInMonth(int inMonth,
                          int inYear)

daysInYear

protected int daysInYear(int inYear)

Returns the number of days in a given year.

Note: This method only works for years from -7 to 3199.

Parameters:

inYear - is the year to get the number of days for.

Returns:

number of days in a given year

advanceMonths

public void advanceMonths(int n)

Advances this day by n months worth of days.

Parameters:

n - the number of months by which to change the day (can be not be < 0)

advanceYears

public void advanceYears(int n)

Advances this day by n years worth of days.

Parameters:

n - the number of years by which to change the day (can be not be < 0)

getDay

public int getDay()

getMonth

public int getMonth()

getYear

public int getYear()

weekday

public int weekday()

Gets the weekday

Returns:

the weekday (0 = Sunday, 1 = Monday, ..., 6 = Saturday)

daysBetween

public int daysBetween(Day b)

The number of days between this and day parameter

Parameters:

b - any date

Returns:

the number of days between this and day parameter and b (> 0 if this day comes after b)

toString

public java.lang.String toString()

A string representation of the day

Returns:

a string representation of the day

Overrides:

toString in class java.lang.Object

clone

public java.lang.Object clone()

Makes a bitwise copy of a Day object

Returns:

a bitwise copy of a Day object

Overrides:

clone in class java.lang.Object