This page provides information on the legacy FEEL Engine, that was used before the current Scala-based FEEL Engine was integrated into Operaton.
The Operaton DMN engine supports the following FEEL data types.
String
String" class="no-lightbox
FEEL supports Strings. They must be encapsulated in double quotes. They support only the equal comparison operator.
Numeric Types
Integer" class="no-lightbox
FEEL supports numeric types like integer. In the Operaton DMN engine the following numeric types are available:
- integer
- long
- double
Numeric types support all comparison operators and ranges.
Boolean
Boolean" class="no-lightbox
FEEL supports the boolean value true and false. The boolean type only
supports the equal comparison operator.
Date
Date" class="no-lightbox
FEEL supports date types. In the Operaton 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.