Array in Android Room Relation - android-room

Question

I have a class for Room relations:
data class PersonWithRelations(
#Embedded val person: Person,
#Relation(
parentColumn = "country_id",
entityColumn = "country_id",
) val country: Country?,
#Relation(
entity = EmergencyContact::class,
parentColumn = "person_id",
entityColumn = "person_id",
) val emergencyContacts: Array<EmergencyContactPerson>?,
// More relations here...
)
EmergencyContactPerson is another class helper for relation:
data class EmergencyContactPerson (
#Embedded val emergencyContact: EmergencyContact,
#Relation(
entity = Person::class,
parentColumn = "ec_person_id",
entityColumn = "person_id",
projection = ["person_id", "party_id", "first_name", "last_name"]
) val person: PersonWithRelations,
)
But I've the following error:
.../PersonWithRelations.java:18: error: Entity type in a Relation must be a class or an interface.
private final com.data.model.relations.EmergencyContactPerson[] emergencyContacts = null;
Everything works except when I add the Array<T> type. How to have an array of these Room relation helper classes inside another relation helper class?
This one of the classes with I'm strugglin with. Additionally, I've the following classes presenting the same problem (How to have array of relation helper classes?):
data class PartyWithRelations(
#Embedded val party: Party,
#Relation(
parentColumn = "party_id",
entityColumn = "party_id",
) val emailAddresses: Array<Email>?,
#Relation(
entity = Phone::class,
parentColumn = "party_id",
entityColumn = "party_id",
) val phoneNumbers: Array<PhoneWithRelations>?,
#Relation(
entity = PostalAddress::class,
parentColumn = "party_id",
entityColumn = "party_id",
) val postalAddresses: Array<PostalAddressWithRelations>?,
)
PhoneWithRelations and PostalAddressWithRelations are as follows:
data class PhoneWithRelations (
#Embedded val phone: Phone,
#Relation(
parentColumn = "phone_type_id",
entityColumn = "phone_type_id",
) val type: PhoneType?,
)
data class PostalAddressWithRelations(
#Embedded val postalAddress: PostalAddress,
#Relation(
parentColumn = "county_id",
entityColumn = "county_id",
) val county: County,
#Relation(
parentColumn = "geopoint_id",
entityColumn = "geopoint_id",
) val geopoint: Geopoint,
#Relation(
parentColumn = "default_geopoint_id",
entityColumn = "geopoint_id",
) val defaultGeopoint: Geopoint,
)
If I remove the Array type from all of theses relations, they do work, but I'm needing to return an Array of those types. For further information, those classes should look like the following JSON (Not intended to be a JSON/String type of return, the following JSON is just for having a picture):
"party": {
"partyId": 76730,
"emailAddresses": [],
"phoneNumbers": [
{
"phoneNumberId": 73376,
"areaCode": "111",
"phoneNumber": "5554433",
"type": {
"phoneNumberTypeId": 61,
"displayText": "Cell",
"sortOrder": 2
},
"priority": 1
}
],
"postalAddresses": [
{
"postalAddressId": 47857,
"street1": "STREET1",
"street2": "STREET2",
"city": "Lafayette",
"stateCode": "IN",
"zipCode": "CODE",
"county": {
"countyId": 3114,
"name": "Tippecanoe",
"isIndependentCity": false,
"stateCode": "IN"
},
"geopoint": {
"geopointId": 41278,
"lat": "LAT",
"lng": "LNG"
},
"defaultGeopoint": {
"geopointId": 41278,
"lat": "LAT",
"lng": "LNG"
}
}
]
},
Also, EmergencyContactPerson should look like this:
"person": {
"personId": 68206,
"firstName": "First Name",
"middleName": "",
"lastName": "Last Name",
"country": {
"countryId": 981,
"displayText": "United States"
},
"emergencyContacts": [
{
"emergencyContactId": 22949,
"person": {
"personId": 68207,
"party": {
"partyId": 76731,
"emailAddresses": [],
"phoneNumbers": [],
"postalAddresses": []
},
"firstName": "First Name",
"lastName": "Last Name"
},
"priority": 1,
"relationship": "Daughter",
"notes": "Primary Contact",
"showOnRouteSheets": false
},
],
},