Hive: About HiveType and its typeId

[pratamatama]

I felt ambiguous with the explanation provided on the docs, should the typeId of @HiveType be unique per model? Or I could do it like this, for instance:

@HiveType(typeId: 0)
class ClassA extends HiveObject {}

@HiveType(typeId: 0)
class ClassB extends HiveObject {}

@HiveType(typeId: 0)
class ClassC extends HiveObject {}

Or it should be like this?

@HiveType(typeId: 0)
class ClassA extends HiveObject {}

@HiveType(typeId: 1)
class ClassB extends HiveObject {}

@HiveType(typeId: 2)
class ClassC extends HiveObject {}

Version

• Platform: iOS, Android
• Flutter version: 1.22.5
• Hive version: ^1.4.4+1

[mbaumgartenbr]

It must be unique! 😁

[pratamatama]

Hi @mbaumgartenbr ! Thanks for answering, so the properway is like the 2nd snippet I defined above?

[mbaumgartenbr]

Yep 🙂

[pratamatama]

I see.. Thanks for fast response, have a nice day! I'm closing it. 🐱‍🏍

[Minsamin]

Link -> https://docs.hivedb.dev/#/custom-objects/type_adapters?id=register-adapter
"Every type has a unique typeId which is used to find the correct adapter when a value is brought back from disk. All typeIds between 0 and 223 are allowed."

1. This means I can have a maximum of 223 dart model classes ?
2. I have to remember what's the last Type ID I used in my app, and increment accordingly ?
3. If my app need more than 223 Model Classes then what should I do ?