Store Map values as Long instead of Int

Is there an existing issue?

• I have searched existing issues

Use case

I am storing a mapping:

val mapping = mutableMapOf(
    "key1" to mutableMapOf(
        "subkey1" to 1L,
        "subkey2" to 1L,
        "subkey3" to 1L
    ),
   "key2" to 1L

that is represented in the data class as follows:

@Entity
data class MyDataClass(
    @Id var id: Long = 0,
    var mapping: MutableMap<String, Any>? = null

ObjectBox will store the Long values as Ints due to not being wide enough. These breaks use cases where we do want to store the Long values as Long and not as Ints (for example test cases that use the same generated mock data to store in the database and to test against).

Proposed solution

Have an annotation that tells ObjectBox to store Long values as Long.

Alternatives

Tried using a PropertyConverter however this breaks for the mapping I've provided.

Additional context

Kotlin
Android

Das Issue nennt keine Dateien oder Tests. Beginnen Sie damit nachzuverfolgen, wie MutableMap<String, Any>-Werte serialisiert werden und warum der versuchte PropertyConverter für dieses Mapping nicht funktioniert; legen Sie anschließend fest, wie die vorgeschlagene Annotation Long-Werte erhalten soll, und überprüfen Sie, dass die gespeicherten und abgerufenen Werte weiterhin Long sind.