org.apache.jasper.util

Class FastDateFormat

java.lang.Object

java.text.Format

java.text.DateFormat

org.apache.jasper.util.FastDateFormat

All Implemented Interfaces:

Serializable, Cloneable

public class FastDateFormat
extends DateFormat

Fast date formatter that caches recently formatted date information and uses it to avoid too-frequent calls to the underlying formatter. Note: breaks fieldPosition param of format(Date, StringBuffer, FieldPosition). If you care about the field position, call the underlying DateFormat directly.

Author:

Stan Bailes, Alex Chaffee

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.text.DateFormat

DateFormat.Field

Field Summary

Fields inherited from class java.text.DateFormat

AM_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 Summary

Constructors

Constructor and Description
FastDateFormat(DateFormat df)

Method Summary

Methods

Modifier and Type	Method and Description
StringBuffer	format(Date date, StringBuffer toAppendTo, FieldPosition fieldPosition) Note: breaks functionality of fieldPosition param.
static void	main(String[] args)
Date	parse(String text, ParsePosition pos)

Methods inherited from class java.text.DateFormat

clone, equals, format, format, getAvailableLocales, getCalendar, getDateInstance, getDateInstance, getDateInstance, getDateTimeInstance, getDateTimeInstance, getDateTimeInstance, getInstance, getNumberFormat, getTimeInstance, getTimeInstance, getTimeInstance, getTimeZone, hashCode, isLenient, parse, parseObject, setCalendar, setLenient, setNumberFormat, setTimeZone

Methods inherited from class java.text.Format

format, formatToCharacterIterator, parseObject

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FastDateFormat

public FastDateFormat(DateFormat df)

Method Detail

parse

public Date parse(String text,
         ParsePosition pos)

Specified by:

parse in class DateFormat

format

public StringBuffer format(Date date,
                  StringBuffer toAppendTo,
                  FieldPosition fieldPosition)

Note: breaks functionality of fieldPosition param. Also: there's a bug in SimpleDateFormat with "S" and "SS", use "SSS" instead if you want a msec field.

Specified by:

format in class DateFormat

main

public static void main(String[] args)