ezvcard.util

Enum VCardDateFormat

java.lang.Object

java.lang.Enum<VCardDateFormat>

ezvcard.util.VCardDateFormat

All Implemented Interfaces:

Serializable, Comparable<VCardDateFormat>

public enum VCardDateFormat
extends Enum<VCardDateFormat>

Defines all of the date formats that are used in vCards, and also parses/formats vCard dates. These date formats are defined in the ISO8601 specification.

Author:

Michael Angstadt

Enum Constant Summary

Enum Constants

Enum Constant and Description
DATE_BASIC Example: 20120701
DATE_EXTENDED Example: 2012-07-01
DATE_TIME_BASIC Example: 20120701T142110-0500
DATE_TIME_EXTENDED Example: 2012-07-01T14:21:10-05:00
HCARD_DATE_TIME Example: 2012-07-01T14:21:10-0500
UTC_DATE_TIME_BASIC Example: 20120701T192110Z
UTC_DATE_TIME_EXTENDED Example: 2012-07-01T19:21:10Z

Field Summary

Fields

Modifier and Type	Field and Description
protected String	formatStr The SimpleDateFormat format string used for parsing dates.

Method Summary

Modifier and Type	Method and Description
static boolean	dateHasTime(String dateStr) Determines whether a date string has a time component.
static boolean	dateHasTimezone(String dateStr) Determines whether a date string is in UTC time or has a timezone offset.
String	format(Date date) Formats a date in this vCard date format.
String	format(Date date, TimeZone timezone) Formats a date in this vCard date format.
DateFormat	getDateFormat() Builds a DateFormat object for parsing and formating dates in this format.
DateFormat	getDateFormat(TimeZone timezone) Builds a DateFormat object for parsing and formating dates in this format.
static Date	parse(String dateStr) Parses a date string.
static TimeZone	parseTimeZoneId(String timezoneId) Gets the TimeZone object that corresponds to the given ID.
static VCardDateFormat	valueOf(String name) Returns the enum constant of this type with the specified name.
static VCardDateFormat[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DATE_BASIC

public static final VCardDateFormat DATE_BASIC

Example: 20120701

DATE_EXTENDED

public static final VCardDateFormat DATE_EXTENDED

Example: 2012-07-01

DATE_TIME_BASIC

public static final VCardDateFormat DATE_TIME_BASIC

Example: 20120701T142110-0500

DATE_TIME_EXTENDED

public static final VCardDateFormat DATE_TIME_EXTENDED

Example: 2012-07-01T14:21:10-05:00

UTC_DATE_TIME_BASIC

public static final VCardDateFormat UTC_DATE_TIME_BASIC

Example: 20120701T192110Z

UTC_DATE_TIME_EXTENDED

public static final VCardDateFormat UTC_DATE_TIME_EXTENDED

Example: 2012-07-01T19:21:10Z

HCARD_DATE_TIME

public static final VCardDateFormat HCARD_DATE_TIME

Example: 2012-07-01T14:21:10-0500

Field Detail

formatStr

protected final String formatStr

The SimpleDateFormat format string used for parsing dates.

Method Detail

values

public static VCardDateFormat[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (VCardDateFormat c : VCardDateFormat.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static VCardDateFormat valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getDateFormat

public DateFormat getDateFormat()

Builds a DateFormat object for parsing and formating dates in this format.

Returns:

the DateFormat object

getDateFormat

public DateFormat getDateFormat(TimeZone timezone)

Builds a DateFormat object for parsing and formating dates in this format.

Parameters:

timezone - the timezone the date is in or null for the default timezone

Returns:

the DateFormat object

format

public String format(Date date)

Formats a date in this vCard date format.

Parameters:

date - the date to format

Returns:

the date string

format

public String format(Date date,
                     TimeZone timezone)

Formats a date in this vCard date format.

Parameters:

date - the date to format

timezone - the timezone to format the date in or null for the default timezone

Returns:

the date string

parse

public static Date parse(String dateStr)

Parses a date string.

Parameters:

dateStr - the date string to parse (e.g. "20130609T181023Z")

Returns:

the parsed date

Throws:

IllegalArgumentException - if the date string isn't in one of the accepted ISO8601 formats

dateHasTime

public static boolean dateHasTime(String dateStr)

Determines whether a date string has a time component.

Parameters:

dateStr - the date string (e.g. "20130601T120000")

Returns:

true if it has a time component, false if not

dateHasTimezone

public static boolean dateHasTimezone(String dateStr)

Determines whether a date string is in UTC time or has a timezone offset.

Parameters:

dateStr - the date string (e.g. "20130601T120000Z", "20130601T120000-0400")

Returns:

true if it has a timezone, false if not

parseTimeZoneId

public static TimeZone parseTimeZoneId(String timezoneId)

Gets the TimeZone object that corresponds to the given ID.

Parameters:

timezoneId - the timezone ID (e.g. "America/New_York")

Returns:

the timezone object or null if not found