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Data Types

A value can have one of the following types.

Null#

Nothing, null, or nil (i.e. the value is not present).

Some operations/functions return null if an argument in not valid or types doesn't match.

  • Java Type: null
null

Number#

A whole or floating point number.

  • not-a-number (NaN), positive/negative infinity are represented as null
  • Java Type: java.math.BigDecimal
12.3.4

String#

A sequence of characters enclosed in double quotes ". The sequence can also contain escaped characters starting with \ (e.g. \', \", \\, \n, \r, \t, unicode like \u269D or \U101EF).

  • Java Type: java.lang.String
"valid"

Boolean#

A boolean value. It is either true or false.

  • Java Type: java.lang.Boolean
truefalse

Date#

A date value without a time component.

  • Format: yyyy-MM-dd.
  • Java Type: java.time.LocalDate
date("2017-03-10")

Time#

A local or zoned time. The time can have an offset or time zone id.

  • Format: HH:mm:ss / HH:mm:ss+/-HH:mm / HH:mm:ss@ZoneId
  • Java Type: java.time.LocalTime / java.time.OffsetTime
time("11:45:30") time("13:30")
time("11:45:30+02:00")
time("10:31:10@Europe/Paris")

Date-Time#

A date with a local or zoned time component. The time can have an offset or time zone id.

  • Format: yyyy-MM-dd'T'HH:mm:ss / yyyy-MM-dd'T'HH:mm:ss+/-HH:mm / yyyy-MM-dd'T'HH:mm:ss@ZoneId
  • Java Type: java.time.LocalDateTime / java.time.DateTime
date and time("2015-09-18T10:31:10")
date and time("2015-09-18T10:31:10+01:00")
date and time("2015-09-18T10:31:10@Europe/Paris")

Day-Time-Duration#

A duration based on seconds. It can contain days, hours, minutes, and seconds.

  • Format: PxDTxHxMxS
  • Java Type: java.time.Duration
duration("P4D")duration("PT2H")duration("PT30M")duration("P1DT6H")

Year-Month-Duration#

A duration based on the calendar. It can contain years and months.

  • Format: PxYxM
  • Java Type: java.time.Period
duration("P2Y")duration("P6M")duration("P1Y6M")

List#

A list of elements. Can be empty.

  • Java Type: java.util.List
[][1,2,3]["a","b"]
[["list"], "of", [["lists"]]]

Context#

A list of key-value-pairs. Can be empty.

  • Java Type: java.util.Map
{}{"a": 1}{"b": 2, "c": "valid"}
{"nested": {"d": 3}}