
Interface Aggregate
Use
You can specify the aggregate type of an object type in its basic data if the interface Aggregate is supported. The aggregate type is used to specify functional relationships between object types. There is no inheritance. The attribute
Aggregate contains the reference to this aggregate type.You do not have to implement anything in the program of the object type.

The input field in the basic data is only available if the interface Aggregate is included.

The object type
This means that the attribute
Aggregate is available in the object type OrderItem and contains a reference to the object type Order at runtime.Activities
Position the cursor on the entry on a blue background with the component name Interfaces and select
. Enter