net.objectlab.kit.datecalc.jdk

Class DatePeriodCountCalculator

java.lang.Object

net.objectlab.kit.datecalc.jdk.DatePeriodCountCalculator

All Implemented Interfaces:

PeriodCountCalculator<Date>

public class DatePeriodCountCalculator
extends Object
implements PeriodCountCalculator<Date>

Jdk Date based implementation of the PeriodCountCalculator

Author:

Marcin Jekot

Constructor Summary

Constructors

Constructor and Description
DatePeriodCountCalculator()

Method Summary

Modifier and Type	Method and Description
int	dayDiff(Date start, Date end, PeriodCountBasis basis) This calculates the number of days between 2 dates, it follows the given basis which means that the result could vary between the same 2 dates if the basis is different.
double	monthDiff(Date start, Date end, PeriodCountBasis basis) This calculates the number of months (or fraction) between 2 dates, it follows the given basis which means that the result could vary between the same 2 dates if the basis is different.
double	yearDiff(Date start, Date end, PeriodCountBasis basis) This calculates the number of years (or fraction) between 2 dates, it follows the given basis which means that the result could vary between the same 2 dates if the basis is different.

Methods inherited from class java.lang.Object

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

Constructor Detail

DatePeriodCountCalculator

public DatePeriodCountCalculator()

Method Detail

dayDiff

public int dayDiff(Date start,
                   Date end,
                   PeriodCountBasis basis)

Description copied from interface: PeriodCountCalculator

This calculates the number of days between 2 dates, it follows the given basis which means that the result could vary between the same 2 dates if the basis is different.

Specified by:

dayDiff in interface PeriodCountCalculator<Date>

Parameters:

start - the start date

end - the end date

basis - the basis to use

Returns:

number of days between end and start.

monthDiff

public double monthDiff(Date start,
                        Date end,
                        PeriodCountBasis basis)

Description copied from interface: PeriodCountCalculator

This calculates the number of months (or fraction) between 2 dates, it follows the given basis which means that the result could vary between the same 2 dates if the basis is different.

Specified by:

monthDiff in interface PeriodCountCalculator<Date>

Parameters:

start - the start date

end - the end date

basis - the basis to use

Returns:

number of months between end and start.

yearDiff

public double yearDiff(Date start,
                       Date end,
                       PeriodCountBasis basis)

Description copied from interface: PeriodCountCalculator

This calculates the number of years (or fraction) between 2 dates, it follows the given basis which means that the result could vary between the same 2 dates if the basis is different.

Specified by:

yearDiff in interface PeriodCountCalculator<Date>

Parameters:

start - the start date

end - the end date

basis - the basis to use

Returns:

number of months between end and start.