How to limit the value of a variable in a data class?

Question

Kotlin

Here is my data class:

// Entity of query
@Entity(tableName = TABLE_NAME)
data class HistoryItem(
    @PrimaryKey(autoGenerate = true)
    val id: Int,

    @ColumnInfo(name = SEARCHED_DOMAIN)
    val searchedDomain: String,

    @ColumnInfo(name = STATUS)
    val status: Int,
)

And statuses:

object Statuses { 
    const val FAILURE = 0
    const val NOT_FOUND = 1
    const val FOUND = 2
}

How can I make it so that int status from HistoryItem can only be set to the value from Statuses?

Answer 1

Use enum instead of int.
It seems that the latest version of room can automatically work with enum. If not, you can write an adapter.