Example of an object model
that doesn’t fit current ORM
•
Case of attributes of the N-N relationship
•
We know how to do this in the database…
•
We can introduce a new entity in the middle but lose
crispness
•
Related to problem of ternary relations, also missing
PizzaOrder
0..*
Option
1..*
∙
id
∙
name
∙
seqNumber
∙
priority
27