201 lines
7.8 KiB
Plaintext
201 lines
7.8 KiB
Plaintext
[[mapping-date-format]]
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== Date Format
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When defining a `date` type, or when defining `date_formats` in the
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`object` mapping, the value of it is the actual date format that will be
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used to parse the string representation of the date. There are built in
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formats supported, as well as complete custom one.
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The parsing of dates uses http://joda-time.sourceforge.net/[Joda]. The
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default date parsing used if no format is specified is
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http://joda-time.sourceforge.net/api-release/org/joda/time/format/ISODateTimeFormat.html#dateOptionalTimeParser[ISODateTimeFormat.dateOptionalTimeParser]().
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An extension to the format allow to define several formats using `||`
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separator. This allows to define less strict formats that can be used,
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for example, the `yyyy/MM/dd HH:mm:ss||yyyy/MM/dd` format will parse
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both `yyyy/MM/dd HH:mm:ss` and `yyyy/MM/dd`. The first format will also
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act as the one that converts back from milliseconds to a string
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representation.
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[float]
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[[date-math]]
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=== Date Math
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The `date` type supports using date math expression when using it in a
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query/filter (mainly make sense in `range` query/filter).
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The expression starts with an "anchor" date, which can be either `now`
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or a date string (in the applicable format) ending with `||`. It can
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then follow by a math expression, supporting `+`, `-` and `/`
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(rounding). The units supported are `y` (year), `M` (month), `w` (week), `h` (hour),
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`m` (minute), and `s` (second).
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Here are some samples: `now+1h`, `now+1h+1m`, `now+1h/d`,
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`2012-01-01||+1M/d`.
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Note, when doing `range` type searches, and the upper value is
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inclusive, the rounding will properly be rounded to the ceiling instead
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of flooring it.
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[float]
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[[built-in]]
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=== Built In Formats
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The following tables lists all the defaults ISO formats supported:
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[cols="<,<",options="header",]
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|=======================================================================
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|Name |Description
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|`basic_date`|A basic formatter for a full date as four digit year, two
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digit month of year, and two digit day of month (yyyyMMdd).
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|`basic_date_time`|A basic formatter that combines a basic date and time,
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separated by a 'T' (yyyyMMdd'T'HHmmss.SSSZ).
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|`basic_date_time_no_millis`|A basic formatter that combines a basic date
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and time without millis, separated by a 'T' (yyyyMMdd'T'HHmmssZ).
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|`basic_ordinal_date`|A formatter for a full ordinal date, using a four
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digit year and three digit dayOfYear (yyyyDDD).
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|`basic_ordinal_date_time`|A formatter for a full ordinal date and time,
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using a four digit year and three digit dayOfYear
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(yyyyDDD'T'HHmmss.SSSZ).
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|`basic_ordinal_date_time_no_millis`|A formatter for a full ordinal date
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and time without millis, using a four digit year and three digit
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dayOfYear (yyyyDDD'T'HHmmssZ).
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|`basic_time`|A basic formatter for a two digit hour of day, two digit
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minute of hour, two digit second of minute, three digit millis, and time
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zone offset (HHmmss.SSSZ).
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|`basic_time_no_millis`|A basic formatter for a two digit hour of day,
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two digit minute of hour, two digit second of minute, and time zone
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offset (HHmmssZ).
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|`basic_t_time`|A basic formatter for a two digit hour of day, two digit
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minute of hour, two digit second of minute, three digit millis, and time
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zone off set prefixed by 'T' ('T'HHmmss.SSSZ).
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|`basic_t_time_no_millis`|A basic formatter for a two digit hour of day,
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two digit minute of hour, two digit second of minute, and time zone
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offset prefixed by 'T' ('T'HHmmssZ).
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|`basic_week_date`|A basic formatter for a full date as four digit
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weekyear, two digit week of weekyear, and one digit day of week
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(xxxx'W'wwe).
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|`basic_week_date_time`|A basic formatter that combines a basic weekyear
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date and time, separated by a 'T' (xxxx'W'wwe'T'HHmmss.SSSZ).
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|`basic_week_date_time_no_millis`|A basic formatter that combines a basic
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weekyear date and time without millis, separated by a 'T'
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(xxxx'W'wwe'T'HHmmssZ).
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|`date`|A formatter for a full date as four digit year, two digit month
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of year, and two digit day of month (yyyy-MM-dd).
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|`date_hour`|A formatter that combines a full date and two digit hour of
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day.
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|`date_hour_minute`|A formatter that combines a full date, two digit hour
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of day, and two digit minute of hour.
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|`date_hour_minute_second`|A formatter that combines a full date, two
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digit hour of day, two digit minute of hour, and two digit second of
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minute.
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|`date_hour_minute_second_fraction`|A formatter that combines a full
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date, two digit hour of day, two digit minute of hour, two digit second
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of minute, and three digit fraction of second
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(yyyy-MM-dd'T'HH:mm:ss.SSS).
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|`date_hour_minute_second_millis`|A formatter that combines a full date,
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two digit hour of day, two digit minute of hour, two digit second of
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minute, and three digit fraction of second (yyyy-MM-dd'T'HH:mm:ss.SSS).
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|`date_optional_time`|a generic ISO datetime parser where the date is
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mandatory and the time is optional.
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|`date_time`|A formatter that combines a full date and time, separated by
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a 'T' (yyyy-MM-dd'T'HH:mm:ss.SSSZZ).
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|`date_time_no_millis`|A formatter that combines a full date and time
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without millis, separated by a 'T' (yyyy-MM-dd'T'HH:mm:ssZZ).
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|`hour`|A formatter for a two digit hour of day.
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|`hour_minute`|A formatter for a two digit hour of day and two digit
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minute of hour.
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|`hour_minute_second`|A formatter for a two digit hour of day, two digit
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minute of hour, and two digit second of minute.
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|`hour_minute_second_fraction`|A formatter for a two digit hour of day,
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two digit minute of hour, two digit second of minute, and three digit
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fraction of second (HH:mm:ss.SSS).
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|`hour_minute_second_millis`|A formatter for a two digit hour of day, two
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digit minute of hour, two digit second of minute, and three digit
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fraction of second (HH:mm:ss.SSS).
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|`ordinal_date`|A formatter for a full ordinal date, using a four digit
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year and three digit dayOfYear (yyyy-DDD).
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|`ordinal_date_time`|A formatter for a full ordinal date and time, using
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a four digit year and three digit dayOfYear (yyyy-DDD'T'HH:mm:ss.SSSZZ).
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|`ordinal_date_time_no_millis`|A formatter for a full ordinal date and
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time without millis, using a four digit year and three digit dayOfYear
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(yyyy-DDD'T'HH:mm:ssZZ).
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|`time`|A formatter for a two digit hour of day, two digit minute of
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hour, two digit second of minute, three digit fraction of second, and
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time zone offset (HH:mm:ss.SSSZZ).
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|`time_no_millis`|A formatter for a two digit hour of day, two digit
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minute of hour, two digit second of minute, and time zone offset
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(HH:mm:ssZZ).
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|`t_time`|A formatter for a two digit hour of day, two digit minute of
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hour, two digit second of minute, three digit fraction of second, and
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time zone offset prefixed by 'T' ('T'HH:mm:ss.SSSZZ).
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|`t_time_no_millis`|A formatter for a two digit hour of day, two digit
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minute of hour, two digit second of minute, and time zone offset
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prefixed by 'T' ('T'HH:mm:ssZZ).
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|`week_date`|A formatter for a full date as four digit weekyear, two
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digit week of weekyear, and one digit day of week (xxxx-'W'ww-e).
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|`week_date_time`|A formatter that combines a full weekyear date and
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time, separated by a 'T' (xxxx-'W'ww-e'T'HH:mm:ss.SSSZZ).
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|`weekDateTimeNoMillis`|A formatter that combines a full weekyear date
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and time without millis, separated by a 'T' (xxxx-'W'ww-e'T'HH:mm:ssZZ).
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|`week_year`|A formatter for a four digit weekyear.
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|`weekyearWeek`|A formatter for a four digit weekyear and two digit week
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of weekyear.
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|`weekyearWeekDay`|A formatter for a four digit weekyear, two digit week
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of weekyear, and one digit day of week.
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|`year`|A formatter for a four digit year.
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|`year_month`|A formatter for a four digit year and two digit month of
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year.
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|`year_month_day`|A formatter for a four digit year, two digit month of
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year, and two digit day of month.
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|=======================================================================
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[float]
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[[custom]]
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=== Custom Format
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Allows for a completely customizable date format explained
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http://joda-time.sourceforge.net/api-release/org/joda/time/format/DateTimeFormat.html[here].
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