Simple types

The common-base facility provides platform-neutral simple types. They are model elements supplied by the facility, not hard-coded primitive tokens in the CMN grammar.

1. Types provided by common-base in 1.3.80

• Any
• String
• Integer
• Long
• Decimal
• Boolean
• Date
• Time
• Timestamp
• Binary
• Id, Name, and Text as semantic specializations of String

2. Custom simple types

type<string> CurrencyCode
type CustomerNumber specialization of String maxLength=30

<string> applies the Base string stereotype. specialization of derives a new simple type from an existing type.

3. Constants and fixed value sets

const DEFAULT_LANGUAGE = 'EN'

enum LanguageCode {
    EN
    DE
}

Use const for a named value and enum for a fixed set of alternatives.

4. Type arguments and properties

Facility-defined types can accept positional arguments. For example, String(200) sets the maxLength argument declared by the Base String type:

type Address {
    street*: String(200)
}

Available arguments and properties are defined by the selected platform and its imported facilities.