Package com.marcosavard.commons.time

Class Dates

java.lang.Object

com.marcosavard.commons.time.Dates

public class Dates
extends java.lang.Object

A utility class for date-related methods.

Author:

Marco

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Dates.Time

Constructor Summary

Constructors

Constructor	Description
Dates()

Method Summary

Modifier and Type	Method	Description
static java.util.Date	createDate(java.util.Date datePart, java.util.Date timePart)	Build a new Date from two Date-typed parameters, the first one representing an actual date (yyyy-MM-dd) and a second one representing the time of of day (hh:mm:ss).
static long	daysBetween(java.util.Date firstDate, java.util.Date secondDate)	Return the number of days between two dates.
static java.util.Date	getDate(int numberOfDays, Dates.Time time)	Get a relative date (yesterday, last week, etc.) compared to the current date. For instance: Date aMonthAgo = DateHelper.getDate(30, Time.BEFORE); Date aWeekAgo = DateHelper.getDate(7, Time.BEFORE); Date yesterday = DateHelper.getDate(1, Time.BEFORE); Date tomorrow = DateHelper.getDate(1, Time.AFTER);
static boolean	isLeapYear(int year)
static java.util.Date	toDate(java.time.LocalDate localDate)	Convert a LocalDate into a Date instance.
static java.time.LocalDate	toLocalDate(java.util.Date date)	Convert a Date into a LocalDate instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

Dates

public Dates()

Method Detail

createDate

public static java.util.Date createDate(java.util.Date datePart,
                                        java.util.Date timePart)

Build a new Date from two Date-typed parameters, the first one representing an actual date (yyyy-MM-dd) and a second one representing the time of of day (hh:mm:ss). For instance, if the first parameter represents 2018-01-31 at 00:00:00, and the second one represents 1970-01-01 at 15:30:00, then builds a Date representing 2018-01-31 at 15:30:00 and returns it.

Parameters:

datePart - a Date object in which time-related fields are ignored.

timePart - a Date object in which date-related fields are ignored. , e.g. 15:36:07 (date-part ignored)

Returns:

new date, e.g. 08-06-2016 15:36:07

daysBetween

public static long daysBetween(java.util.Date firstDate,
                               java.util.Date secondDate)

Return the number of days between two dates.

Parameters:

firstDate -

secondDate -

Returns:

getDate

public static java.util.Date getDate(int numberOfDays,
                                     Dates.Time time)

Get a relative date (yesterday, last week, etc.) compared to the current date.

For instance:
Date aMonthAgo = DateHelper.getDate(30, Time.BEFORE);
Date aWeekAgo = DateHelper.getDate(7, Time.BEFORE);
Date yesterday = DateHelper.getDate(1, Time.BEFORE);
Date tomorrow = DateHelper.getDate(1, Time.AFTER);


Parameters:

numberOfDays - a positive or negative number of days

Returns:

date relative to the current date

isLeapYear

public static boolean isLeapYear(int year)

toLocalDate

public static java.time.LocalDate toLocalDate(java.util.Date date)

Convert a Date into a LocalDate instance.

Parameters:

date - to convert

Returns:

the LocalDate instance

toDate

public static java.util.Date toDate(java.time.LocalDate localDate)

Convert a LocalDate into a Date instance.

Parameters:

localDate - to convert

Returns:

the Date instance