The Camunda DMN engine supports the following FEEL data types.

String

FEEL supports Strings. They must be encapsulated in double quotes. They support only the equal comparison operator.

Numeric Types

FEEL supports numeric types like integer. In the Camunda DMN engine the following numeric types are available:

• integer
• long
• double

Numeric types support all comparison operators and ranges.

Boolean

FEEL supports the boolean value true and false. The boolean type only supports the equal comparison operator.

Date

FEEL supports date types. In the Camunda DMN engine the following date types are available:

• date and time

To create a date and time value the function date and time has to be used with a single String parameter. The parameter specifies the date and time in the format yyyy-MM-dd'T'HH:mm:ss.

Date types support all comparison operators and ranges.