<@U0B98KWF4> is it possible to create custom room...

# android-architecture

[FunkyMuse]

@yigit is it possible to create custom room types like rxjava3's flowables/observable/singe, paging's data source etc..

I want room to return a type of my sealed class result, just like you can do with retrofit?

[Pavel Sidyakin]

Consider to serialize/deserialize the sealed class. kotlinx.serialization can esiliy serialize/deserialize a sealed class.

[FunkyMuse]

This wasn't my question, sorry

[Pavel Sidyakin]

The only way to add a custom type to Room is TypeConverter.
In case of a sealed class you can create the TypeConverter for your class and use kotlinx serialization inside (because it supports a sealed class serialization out-of-box).

[Javier]

But he doesnt want a new type

[Javier]

he wants wrap the type, like kotlin flow or rxjava

[Javier]

he doesnt want to save the sealed class directly, he wants to recover the current type and based on some exceptions, map it to a sealed class

[Javier]

currently you only can do something like dao.getSometing().someFunWhichCatchExceptionsAndTransformToSealedClass()

[FunkyMuse]

That's what I'm doing currently