Update query when related entities change

Is there a way for an observable query to detect when a related entity changes, and notify its subscribers? The following uses a one-to-one relationship between a person and an address. I would like the person query to be notified when a person’s address changes.

@Entity
data class Person(@Id val id: Long = 0) {
    lateinit var homeAddress: ToOne<Address>
}

@Entity
data class Address(@Id var id: Long = 0,
    val street: String
)

// Build a query for the parent
val query = boxStore.boxFor<Person>().query().build()
query.find()

// I want to be notified when the address changes
query.subscribe(...)

// Update the relationship
person.homeAddress.target = Address(street= "...")
boxStore.boxFor<Address>.put(newAddress) // persists, but the person query does not get notified

This updates the address box as expected, but the person query is not notified. Any way to accomplish that?

[amgadserry]

@greenrobot-team here is the final solution i went with

    fun getPopulatedAccounts(): Observable<List<AccountEntity>> {
        val zipper: BiFunction<
                Any,
                Any,
                List<AccountEntity>> = BiFunction { _, _ -> 
                    accountsDoa.findAll {
                        eager(Account_.requests)
                    }.find()
                }

        val accountsObservable = RxBoxStore.observable<Account>(accountsDoa.store)

        val requestsObservable = RxBoxStore.observable<RequestEntity>(requestDao.store)

        return Observable.combineLatest(accountsObservable, requestsObservable, zipper)
    }

let me know if there are a better workaround for rxjava. Thanks

[greenrobot-team]

Duplicate of #268