Cardinality

Specifies the cardinality of this relationship property. Required for relationship properties. Not used for other properties.

Usage

To specify the cardinality of a relationship property, use the following syntax:

Relationship relname As classname [ Cardinality = cardinality; inverse = inverse ];

Where cardinality is one of the following:

This keyword specifies the cardinality of a relationship property.

The Cardinality keyword is required for relationship properties. It is ignored by non-relationship properties.

For more information on relationships, see “Defining and Using Relationships” in Using Caché Objects.

There is no default. When you define a relationship, you must specify the Cardinality keyword.

Relationship Chapters As Chapter [ Cardinality = many; inverse = Book ];