org.calendartag.util
Class CalendarTagUtil

java.lang.Object
  org.calendartag.util.CalendarTagUtil

public class CalendarTagUtil

extends java.lang.Object

Since:

Oct 3, 2004

Author:

James Smith

Constructor Summary

CalendarTagUtil()

Method Summary

static int	dayCompare(java.util.Calendar leftCalendar, java.util.Calendar rightCalendar) Determines if the leftCalendar is before, during or after the rightCalendar based on the year, month, and day of the date only.
static int	differenceInDays(java.util.Calendar a, java.util.Calendar b) Accurately calculates the difference between two calendars in days.
static boolean	isSameDay(java.util.Calendar a, java.util.Calendar b) Determines if two Calendar objects are the same day, month and year.
static void	trimCalendar(java.util.Calendar calendar) Removes the milliseconds, minutes, seconds, and hours from a Calendar object
static void	trimDate(java.util.Date date) Uses trimCalendar to remove milliseconds, minutes, seconds, and hours from a Date object

Methods inherited from class java.lang.Object

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

Constructor Detail

CalendarTagUtil

public CalendarTagUtil()

Method Detail

trimCalendar

public static void trimCalendar(java.util.Calendar calendar)

Removes the milliseconds, minutes, seconds, and hours from a Calendar object

Parameters:

calendar - the Calendar object

trimDate

public static void trimDate(java.util.Date date)

Uses trimCalendar to remove milliseconds, minutes, seconds, and hours from a Date object

Parameters:

date - The Date object

isSameDay

public static boolean isSameDay(java.util.Calendar a,
                                java.util.Calendar b)

Determines if two Calendar objects are the same day, month and year.

Parameters:

a - the first Calendar object

b - the second Calendar object

Returns:

true if they are the same day, month and year. otherwise false

dayCompare

public static int dayCompare(java.util.Calendar leftCalendar,
                             java.util.Calendar rightCalendar)

Determines if the leftCalendar is before, during or after the rightCalendar based on the year, month, and day of the date only. This is less specific than Date.before(Date) since it only compares based on the day and is capable of returning 0 when the day is the same

Parameters:

leftCalendar - the left calendar

rightCalendar - the right calendar

Returns:

-1 if the left calendar is before the right calendar, 0 if they are on the same day, +1 if the left calendar is after the right calendar

differenceInDays

public static int differenceInDays(java.util.Calendar a,
                                   java.util.Calendar b)

Accurately calculates the difference between two calendars in days.

Parameters:

a - the first calendar

b - the second calendar

Returns:

the number of days difference, 0 if they are the same,