RelationLoader<T extends DatumEntityInterface> class

Internal collaborator of DatumManager that loads and stitches related entities: eager loading (withRelated), relation-schema registration, and the internals of the deprecated fetchRelated/watchRelated APIs.

This class is an implementation detail of the manager and is NOT exported from the package barrel. The public methods stay on DatumManager and delegate here.

Constructors

RelationLoader({required DatumManager<T> manager, required DatumLogger logger, required Future<void> recurseIntoRelated(DatumManager<DatumEntityInterface> relatedManager, List<DatumEntityInterface> entities, List<String> relations, DataSource source, String? userId)})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

manager → DatumManager<T>

The owning manager (adapters are reached through it).

final

recurseIntoRelated → Future<void> Function(DatumManager<DatumEntityInterface> relatedManager, List<DatumEntityInterface> entities, List<String> relations, DataSource source, String? userId)

Recurses into nested relation paths on a related manager.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

fetchAndStitchRelations(List<T> entities, List<String> relations, DataSource source, String? userId) → Future<void>

fetchRelated<R extends DatumEntityInterface>(T parent, String relationName, {DataSource source = DataSource.local}) → Future<List<R>>

Fetches related entities for a given parent entity (the internals behind the deprecated DatumManager.fetchRelated).

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

registerRelationSchema(DatumEntityInterface entity) → void

Registers a relational entity's schema in DatumRelationSchema the first time an instance is seen, enabling instance-free relation traversal (#21).

toString() → String

A string representation of this object.

inherited

watchRelated<R extends DatumEntityInterface>(T parent, String relationName) → Stream<List<R>>?

Reactively watches related entities for a given parent entity (the internals behind the deprecated DatumManager.watchRelated).

Operators

operator ==(Object other) → bool

The equality operator.

inherited