what's the concept of mandatory in orientdb?

Question

I'm trying OrientDB.

Most of concepts are easy and clear to understand. But there was one unfamiliar concept. The mandatory. What's this?

score 6 · Answer 1 · answered Nov 22 '11 at 18:34

6

Are you talking about mandatory schema properties? If yes this means you can use OrientDB in schema-less mode but defining some properties as mandatory.

answered Nov 22 '11 at 18:34

Lvca

8,938
2
24
25

score 1 · Answer 2 · answered Jul 21 '14 at 20:38

1

Mandatory means you have to provide a value for that property when creating a new instance/row. It's like SQL's "Not Null"

answered Jul 21 '14 at 20:38

Paul Fryer

9,268
14
61
93

1

OrientDB also has a "Not Null" property, so I'm thinking it's probably more like Lvca's definition – Andrew dh Aug 11 '14 at 15:15

score 1 · Answer 3 · answered Sep 15 '14 at 00:32

"Mandatory"on a field of a document indicate that you are using your Document in Schema-Hybrid (Schema-Mixed) mode, as you can see from documentation (by the way it's seems all new, great!) when you set your schema in schema-full mode "enable the strict-mode at class level and set all the fields as mandatory", so if you are in schema-mixed mode and you want to insert a new document you have to indicate all the fields that are marked with "mandatory" even if their are null

what's the concept of mandatory in orientdb?

3 Answers3