public class MailDateFormat extends SimpleDateFormat
This class does not support methods that influence the format. It always formats the date based on the specification below.
3.3. Date and Time Specification
Date and time occur in several header fields. This section specifies the syntax for a full date and time specification. Though folding white space is permitted throughout the date-time specification, it is RECOMMENDED that a single space be used in each place that FWS appears (whether it is required or optional); some older implementations may not interpret other occurrences of folding white space correctly.
date-time = [ day-of-week "," ] date FWS time [CFWS]
day-of-week = ([FWS] day-name) / obs-day-of-week
day-name = "Mon" / "Tue" / "Wed" / "Thu" /
"Fri" / "Sat" / "Sun"
date = day month year
year = 4*DIGIT / obs-year
month = (FWS month-name FWS) / obs-month
month-name = "Jan" / "Feb" / "Mar" / "Apr" /
"May" / "Jun" / "Jul" / "Aug" /
"Sep" / "Oct" / "Nov" / "Dec"
day = ([FWS] 1*2DIGIT) / obs-day
time = time-of-day FWS zone
time-of-day = hour ":" minute [ ":" second ]
hour = 2DIGIT / obs-hour
minute = 2DIGIT / obs-minute
second = 2DIGIT / obs-second
zone = (( "+" / "-" ) 4DIGIT) / obs-zone
The day is the numeric day of the month. The year is any numeric year
1900 or later.
The time-of-day specifies the number of hours, minutes, and optionally seconds since midnight of the date indicated.
The date and time-of-day SHOULD express local time.
The zone specifies the offset from Coordinated Universal Time (UTC, formerly referred to as "Greenwich Mean Time") that the date and time-of-day represent. The "+" or "-" indicates whether the time-of-day is ahead of (i.e., east of) or behind (i.e., west of) Universal Time. The first two digits indicate the number of hours difference from Universal Time, and the last two digits indicate the number of minutes difference from Universal Time. (Hence, +hhmm means +(hh * 60 + mm) minutes, and -hhmm means -(hh * 60 + mm) minutes). The form "+0000" SHOULD be used to indicate a time zone at Universal Time. Though "-0000" also indicates Universal Time, it is used to indicate that the time was generated on a system that may be in a local time zone other than Universal Time and therefore indicates that the date-time contains no information about the local time zone.
A date-time specification MUST be semantically valid. That is, the day-of-the-week (if included) MUST be the day implied by the date, the numeric day-of-month MUST be between 1 and the number of days allowed for the specified month (in the specified year), the time-of-day MUST be in the range 00:00:00 through 23:59:60 (the number of seconds allowing for a leap second; see [STD12]), and the zone MUST be within the range -9959 through +9959.
Date formats are not synchronized. It is recommended to create separate format instances for each thread. If multiple threads access a format concurrently, it must be synchronized externally.
DateFormat.FieldAM_PM_FIELD, calendar, DATE_FIELD, DAY_OF_WEEK_FIELD, DAY_OF_WEEK_IN_MONTH_FIELD, DAY_OF_YEAR_FIELD, DEFAULT, ERA_FIELD, FULL, HOUR_OF_DAY0_FIELD, HOUR_OF_DAY1_FIELD, HOUR0_FIELD, HOUR1_FIELD, LONG, MEDIUM, MILLISECOND_FIELD, MINUTE_FIELD, MONTH_FIELD, numberFormat, SECOND_FIELD, SHORT, TIMEZONE_FIELD, WEEK_OF_MONTH_FIELD, WEEK_OF_YEAR_FIELD, YEAR_FIELD| Constructor and Description |
|---|
MailDateFormat()
Create a new date format for the RFC2822 specification with lenient
parsing.
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| Modifier and Type | Method and Description |
|---|---|
StringBuffer |
format(Date date,
StringBuffer dateStrBuf,
FieldPosition fieldPosition)
Formats the given date in the format specified by
RFC 2822 in the current TimeZone.
|
Date |
parse(String text,
ParsePosition pos)
Parses the given date in the format specified by
RFC 2822.
|
void |
setCalendar(Calendar newCalendar)
This method always throws an UnsupportedOperationException and should not
be used because RFC 2822 mandates a specific calendar.
|
void |
setNumberFormat(NumberFormat newNumberFormat)
This method always throws an UnsupportedOperationException and should not
be used because RFC 2822 mandates a specific number format.
|
applyLocalizedPattern, applyPattern, clone, equals, formatToCharacterIterator, get2DigitYearStart, getDateFormatSymbols, hashCode, set2DigitYearStart, setDateFormatSymbols, toLocalizedPattern, toPatternformat, format, getAvailableLocales, getCalendar, getDateInstance, getDateInstance, getDateInstance, getDateTimeInstance, getDateTimeInstance, getDateTimeInstance, getInstance, getNumberFormat, getTimeInstance, getTimeInstance, getTimeInstance, getTimeZone, isLenient, parse, parseObject, setLenient, setTimeZoneformat, parseObjectpublic MailDateFormat()
public StringBuffer format(Date date, StringBuffer dateStrBuf, FieldPosition fieldPosition)
format in class SimpleDateFormatdate - the Date objectdateStrBuf - the formatted stringfieldPosition - the current field positionpublic Date parse(String text, ParsePosition pos)
parse in class SimpleDateFormattext - the formatted date to be parsedpos - the current parse positionpublic void setCalendar(Calendar newCalendar)
setCalendar in class DateFormatUnsupportedOperationException - if this method is invokedpublic void setNumberFormat(NumberFormat newNumberFormat)
setNumberFormat in class DateFormatUnsupportedOperationException - if this method is invokedCopyright © 2016 JBoss by Red Hat. All rights reserved.