DataLoader<T> class abstract interface

Interface for loading data from URIs.

Implement this interface to load data (e.g., images, documents) from URIs for embedding. This is useful for multimodal scenarios where you want to store URIs in ChromaDB but load the actual content dynamically for embedding.

Example:

class ImageLoader implements DataLoader<List<String>> {
  final http.Client client;

  ImageLoader(this.client);

  @override
  Future<List<String>> call(List<String> uris) async {
    final results = <String>[];
    for (final uri in uris) {
      final response = await client.get(Uri.parse(uri));
      results.add(base64Encode(response.bodyBytes));
    }
    return results;
  }
}

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

call(List<String> uris) → Future<T>

Loads data from the given URIs.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited