Key

A Key is a Development Object that designates a field or combination of fields as a Primary Key, Candidate Key, or Index.

A Database Entity or a Modeled Entity that is in relationship with another entity must have a primary key, and may have one or more candidate keys and indexes.

Characteristics

Characteristics
Icon:
Object type code:	key
Main Development Object?	No
Part of:	Modeled Entity
Contains:	Property
Generalization:	Development Object
Specializations	Primary Key, Candidate Key, Index
Compilation Output:	—
URI format:	`ent:ModeledEntityName/key:KeyName`

Specialization

Key specializes Development Object in the following ways:

It has a Modeled Entity as parent
It has no child objects
It has a Type property that specifies whether it is a primary, candidate, or index key

Properties

Object Properties:

Name
Type
Location
Description
Documentation

Configuration Properties:

Key Fields

Behavior Properties:

Validate
Key Type