Package org.joda.time.format

Class PeriodFormat

  • public class PeriodFormat
extends java.lang.Object
    Factory that creates instances of PeriodFormatter.

    Period formatting is performed by the PeriodFormatter class. Three classes provide factory methods to create formatters, and this is one. The others are ISOPeriodFormat and PeriodFormatterBuilder.

    PeriodFormat is thread-safe and immutable, and the formatters it returns are as well.

    Since:
    1.0
    See Also:
    ISOPeriodFormat, PeriodFormatterBuilder

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      (package private) static class  PeriodFormat.DynamicWordBased
      Printer/parser that reacts to the locale and changes the word-based pattern if necessary.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static java.lang.String BUNDLE_NAME
      The resource bundle name.
      private static java.util.concurrent.ConcurrentMap<java.util.Locale,​PeriodFormatter> FORMATTERS
      The created formatters.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      protected PeriodFormat()
      Constructor.

    • Field Detail

      • BUNDLE_NAME

        private static final java.lang.String BUNDLE_NAME
        The resource bundle name.
        See Also:
        Constant Field Values

      • FORMATTERS

        private static final java.util.concurrent.ConcurrentMap<java.util.Locale,​PeriodFormatter> FORMATTERS
        The created formatters.

    • Constructor Detail

      • PeriodFormat

        protected PeriodFormat()
        Constructor.
        Since:
        1.1 (previously private)

    • Method Detail

      • getDefault

        public static PeriodFormatter getDefault()
        Gets the default formatter that outputs words in English.

        This calls wordBased(Locale) using a locale of ENGLISH.

        Returns:
        the formatter, not null

      • wordBased

        public static PeriodFormatter wordBased()
        Returns a word based formatter for the JDK default locale.

        This calls wordBased(Locale) using the default locale.

        Returns:
        the formatter, not null
        Since:
        2.0

      • wordBased

        public static PeriodFormatter wordBased​(java.util.Locale locale)
        Returns a word based formatter for the specified locale.

        The words are configured in a resource bundle text file - org.joda.time.format.messages. This can be added to via the normal classpath resource bundle mechanisms.

        You can add your own translation by creating messages_.properties file and adding it to the org.joda.time.format.messages path.

        Simple example (1 -> singular suffix, not 1 -> plural suffix): 

         PeriodFormat.space=\ 
 PeriodFormat.comma=,
 PeriodFormat.commandand=,and 
 PeriodFormat.commaspaceand=, and 
 PeriodFormat.commaspace=, 
 PeriodFormat.spaceandspace=\ and 
 PeriodFormat.year=\ year
 PeriodFormat.years=\ years
 PeriodFormat.month=\ month
 PeriodFormat.months=\ months
 PeriodFormat.week=\ week
 PeriodFormat.weeks=\ weeks
 PeriodFormat.day=\ day
 PeriodFormat.days=\ days
 PeriodFormat.hour=\ hour
 PeriodFormat.hours=\ hours
 PeriodFormat.minute=\ minute
 PeriodFormat.minutes=\ minutes
 PeriodFormat.second=\ second
 PeriodFormat.seconds=\ seconds
 PeriodFormat.millisecond=\ millisecond
 PeriodFormat.milliseconds=\ milliseconds

        Some languages contain more than two suffixes. You can use regular expressions for them. Here's an example using regular expression for English: 

         PeriodFormat.space=\ 
 PeriodFormat.comma=,
 PeriodFormat.commandand=,and 
 PeriodFormat.commaspaceand=, and 
 PeriodFormat.commaspace=, 
 PeriodFormat.spaceandspace=\ and 
 PeriodFormat.regex.separator=%
 PeriodFormat.years.regex=1$%.*
 PeriodFormat.years.list=\ year%\ years
 PeriodFormat.months.regex=1$%.*
 PeriodFormat.months.list=\ month%\ months
 PeriodFormat.weeks.regex=1$%.*
 PeriodFormat.weeks.list=\ week%\ weeks
 PeriodFormat.days.regex=1$%.*
 PeriodFormat.days.list=\ day%\ days
 PeriodFormat.hours.regex=1$%.*
 PeriodFormat.hours.list=\ hour%\ hours
 PeriodFormat.minutes.regex=1$%.*
 PeriodFormat.minutes.list=\ minute%\ minutes
 PeriodFormat.seconds.regex=1$%.*
 PeriodFormat.seconds.list=\ second%\ seconds
 PeriodFormat.milliseconds.regex=1$%.*
 PeriodFormat.milliseconds.list=\ millisecond%\ milliseconds

        You can mix both approaches. Here's example for Polish ( "1 year, 2 years, 5 years, 12 years, 15 years, 21 years, 22 years, 25 years" translates to "1 rok, 2 lata, 5 lat, 12 lat, 15 lat, 21 lat, 22 lata, 25 lat"). Notice that PeriodFormat.day and PeriodFormat.days is used for day suffixes as there is no need for regular expressions: 

         PeriodFormat.space=\ 
 PeriodFormat.comma=,
 PeriodFormat.commandand=,i 
 PeriodFormat.commaspaceand=, i 
 PeriodFormat.commaspace=, 
 PeriodFormat.spaceandspace=\ i 
 PeriodFormat.regex.separator=%
 PeriodFormat.years.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.years.list=\ rok%\ lata%\ lat
 PeriodFormat.months.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.months.list=\ miesiąc%\ miesiące%\ miesięcy
 PeriodFormat.weeks.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.weeks.list=\ tydzień%\ tygodnie%\ tygodni
 PeriodFormat.day=\ dzień
 PeriodFormat.days=\ dni
 PeriodFormat.hours.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.hours.list=\ godzina%\ godziny%\ godzin
 PeriodFormat.minutes.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.minutes.list=\ minuta%\ minuty%\ minut
 PeriodFormat.seconds.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.seconds.list=\ sekunda%\ sekundy%\ sekund
 PeriodFormat.milliseconds.regex=^1$%[0-9]*(?<!1)[2-4]$%[0-9]*
 PeriodFormat.milliseconds.list=\ milisekunda%\ milisekundy%\ milisekund

        Each PeriodFormat.<duration_field_type>.regex property stands for an array of regular expressions and is followed by a property PeriodFormat.<duration_field_type>.list holding an array of suffixes. PeriodFormat.regex.separator is used for splitting. See PeriodFormatterBuilder.appendSuffix(String[], String[]) for details.

        Available languages are English, Danish, Dutch, French, German, Japanese, Polish, Portuguese and Spanish.

        Returns:
        the formatter, not null
        Since:
        2.0, regex since 2.5

      • buildWordBased

        private static PeriodFormatter buildWordBased​(java.util.Locale locale)

      • buildRegExFormatter

        private static PeriodFormatter buildRegExFormatter​(java.util.ResourceBundle b,
                                                   java.util.Locale locale)

      • buildNonRegExFormatter

        private static PeriodFormatter buildNonRegExFormatter​(java.util.ResourceBundle b,
                                                      java.util.Locale locale)

      • retrieveVariants

        private static java.lang.String[] retrieveVariants​(java.util.ResourceBundle b)

      • containsKey

        private static boolean containsKey​(java.util.ResourceBundle bundle,
                                   java.lang.String key)