Mongo 领域 + Kotlin 验证错误 Class - 无效类型 'STRING_LIST'
Mongo Realm + Kotlin error in verifying Class - invalid type 'STRING_LIST'
我正在尝试使用 Mongo 领域
创建示例 Android 应用程序
- Android Studio 4.1.2
- io.realm:realm-gradle-plugin:10.3.1
- MongoDB 4.4 领域
在我将数组“成员”添加到架构之前一切正常
{
"properties": {
"_id": {
"bsonType": "objectId"
},
"_partition": {
"bsonType": "string"
},
"title": {
"bsonType": "string"
},
"description": {
"bsonType": "string"
},
"members": {
"bsonType": "array",
"items": {
"bsonType": "string"
}
},
"date_of_trip": {
"bsonType": "object",
"properties": {
"start_date": {
"bsonType": "string"
},
"end_date": {
"bsonType": "string"
}
}
},
"trip_icon": {
"bsonType": "binData"
}
},
"required": [
"_id",
"_partition",
"title"
],
"title": "Trip"
}
kotlin class 是
import io.realm.RealmList;
import io.realm.RealmObject;
import org.bson.types.ObjectId;
open class Trip(
@PrimaryKey var _id: ObjectId = ObjectId(),
var _partition: String = "",
var date_of_trip: Trip_date_of_trip? = null,
var description: String? = null,
@Required
var members: RealmList<String> = RealmList(),
var title: String = "",
var trip_icon: ByteArray? = null
): RealmObject() {}
现在每次我在 AVD 上 运行 应用程序时都会收到此错误
2021-03-02 10:50:22.822 6024-6024/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: by.lsd.tripplanner, PID: 6024
java.lang.IllegalArgumentException: Invalid query: field 'members' in class 'Trip' is of invalid type 'STRING_LIST'.
at io.realm.internal.fields.FieldDescriptor.verifyColumnType(FieldDescriptor.java:295)
at io.realm.internal.fields.FieldDescriptor.setCompilationResults(FieldDescriptor.java:261)
at io.realm.internal.fields.CachedFieldDescriptor.compileFieldDescription(CachedFieldDescriptor.java:95)
at io.realm.internal.fields.FieldDescriptor.compileIfNecessary(FieldDescriptor.java:303)
at io.realm.internal.fields.FieldDescriptor.getColumnKeys(FieldDescriptor.java:189)
at io.realm.RealmQuery.contains(RealmQuery.java:1620)
at io.realm.RealmQuery.contains(RealmQuery.java:1604)
at by.lsd.tripplanner.TripsActivity.setUpTripsRecyclerView(TripsActivity.kt:109)
at by.lsd.tripplanner.TripsActivity.access$setUpTripsRecyclerView(TripsActivity.kt:26)
at by.lsd.tripplanner.TripsActivity$onStart.onSuccess(TripsActivity.kt:47)
at by.lsd.tripplanner.TripsActivity$onStart.onSuccess(TripsActivity.kt:43)
at io.realm.RealmCache$CreateRealmRunnable.run(RealmCache.java:274)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
这个错误的原因是什么?
请注意,如果您的 Realm 模型包含一个 List 并且它是一个原语列表,那么目前它并没有得到很好的支持(通常,请避免使用它)。
编辑: 版本 10.7 添加了对 filters/queries 的支持以及基元上的聚合函数,因此以下信息不再完全有效。不过,还是要注意一下。
列表应该是 属性 是字符串的领域对象列表。
请参阅基元列表部分下的文档的 Relationship 部分
Lists of primitives do not support lists-of-lists and querying
我正在尝试使用 Mongo 领域
创建示例 Android 应用程序- Android Studio 4.1.2
- io.realm:realm-gradle-plugin:10.3.1
- MongoDB 4.4 领域
在我将数组“成员”添加到架构之前一切正常
{
"properties": {
"_id": {
"bsonType": "objectId"
},
"_partition": {
"bsonType": "string"
},
"title": {
"bsonType": "string"
},
"description": {
"bsonType": "string"
},
"members": {
"bsonType": "array",
"items": {
"bsonType": "string"
}
},
"date_of_trip": {
"bsonType": "object",
"properties": {
"start_date": {
"bsonType": "string"
},
"end_date": {
"bsonType": "string"
}
}
},
"trip_icon": {
"bsonType": "binData"
}
},
"required": [
"_id",
"_partition",
"title"
],
"title": "Trip"
}
kotlin class 是
import io.realm.RealmList;
import io.realm.RealmObject;
import org.bson.types.ObjectId;
open class Trip(
@PrimaryKey var _id: ObjectId = ObjectId(),
var _partition: String = "",
var date_of_trip: Trip_date_of_trip? = null,
var description: String? = null,
@Required
var members: RealmList<String> = RealmList(),
var title: String = "",
var trip_icon: ByteArray? = null
): RealmObject() {}
现在每次我在 AVD 上 运行 应用程序时都会收到此错误
2021-03-02 10:50:22.822 6024-6024/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: by.lsd.tripplanner, PID: 6024
java.lang.IllegalArgumentException: Invalid query: field 'members' in class 'Trip' is of invalid type 'STRING_LIST'.
at io.realm.internal.fields.FieldDescriptor.verifyColumnType(FieldDescriptor.java:295)
at io.realm.internal.fields.FieldDescriptor.setCompilationResults(FieldDescriptor.java:261)
at io.realm.internal.fields.CachedFieldDescriptor.compileFieldDescription(CachedFieldDescriptor.java:95)
at io.realm.internal.fields.FieldDescriptor.compileIfNecessary(FieldDescriptor.java:303)
at io.realm.internal.fields.FieldDescriptor.getColumnKeys(FieldDescriptor.java:189)
at io.realm.RealmQuery.contains(RealmQuery.java:1620)
at io.realm.RealmQuery.contains(RealmQuery.java:1604)
at by.lsd.tripplanner.TripsActivity.setUpTripsRecyclerView(TripsActivity.kt:109)
at by.lsd.tripplanner.TripsActivity.access$setUpTripsRecyclerView(TripsActivity.kt:26)
at by.lsd.tripplanner.TripsActivity$onStart.onSuccess(TripsActivity.kt:47)
at by.lsd.tripplanner.TripsActivity$onStart.onSuccess(TripsActivity.kt:43)
at io.realm.RealmCache$CreateRealmRunnable.run(RealmCache.java:274)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
这个错误的原因是什么?
请注意,如果您的 Realm 模型包含一个 List 并且它是一个原语列表,那么目前它并没有得到很好的支持(通常,请避免使用它)。
编辑: 版本 10.7 添加了对 filters/queries 的支持以及基元上的聚合函数,因此以下信息不再完全有效。不过,还是要注意一下。
列表应该是 属性 是字符串的领域对象列表。
请参阅基元列表部分下的文档的 Relationship 部分
Lists of primitives do not support lists-of-lists and querying