Query<InstanceType extends ManagedObject> constructor Null safety

Query<InstanceType extends ManagedObject>(
  1. ManagedContext context,
  2. {InstanceType? values}
)

Creates a new Query.

The query will be sent to the database described by context. For insert or update queries, you may provide values through this constructor or set the field of the same name later. If set in the constructor, InstanceType is inferred.

Implementation

factory Query(ManagedContext context, {InstanceType? values}) {
  final ManagedEntity? entity =
      context.dataModel!.entityForType(InstanceType);
  if (entity == null) {
    throw ArgumentError(
        "Invalid context. The data model of 'context' does not contain '$InstanceType'.");
  }

  return context.persistentStore!
      .newQuery<InstanceType>(context, entity, values: values!);
}