MediaPipeTasksRetrieval Framework Reference

Classes

The following classes are available globally.

• BaseOptions

  Holds the base options used for creation of any MediaPipe task, including model asset path and hardware delegate configuration.

  Declaration

  Swift

  class BaseOptions : NSObject, NSCopying

• Embedding

  Represents the embedding extracted by an embedder task head.

  Declaration

  Swift

  class Embedding : NSObject

• EmbeddingResult

  Represents the embedding results of a model.

  Declaration

  Swift

  class EmbeddingResult : NSObject

• InMemoryVectorStore

  In-memory vector store implementation backed by an ephemeral :memory: SQLite vector database.

  Declaration

  Swift

  class InMemoryVectorStore : SqliteVectorStore

• RetrievalRecord

  Represents a single record stored in or retrieved from a vector store.

  Declaration

  Swift

  class RetrievalRecord : NSObject

• RetrievalResult

  Represents a single ranked result retrieved from SemanticRetriever.

  Declaration

  Swift

  class RetrievalResult : NSObject

• SemanticRetriever

  Performs on-device semantic search, vector storage, and query retrieval across text, images, and audio.

  Declaration

  Swift

  class SemanticRetriever : NSObject

• SemanticRetrieverOptions

  Configuration container (also bridged as SemanticRetrieverComponents) for initializing SemanticRetriever.

  Declaration

  Swift

  class SemanticRetrieverOptions : NSObject

• SqliteVectorStore

  Vector store implementation backed by a persistent SQLite database using the native SQLite vector engine.

  Declaration

  Swift

  class SqliteVectorStore : NSObject

• TaskPart

  Represents a modality part of a multi-modal content block (subclassed by TextPart, ImagePart, and AudioPart).

  Declaration

  Swift

  class TaskPart : NSObject

• UniversalEmbedder

  Performs multi-modal embedding extraction on text, images, audio, or composite content blocks using the native LiteRT-LM EmbeddingEngine.

  Declaration

  Swift

  class UniversalEmbedder : NSObject

• UniversalEmbedderOptions

  Options for setting up a UniversalEmbedder.

  Declaration

  Swift

  class UniversalEmbedderOptions : TaskOptions, NSCopying

• UniversalEmbedderResult

  Represents the multi-modal embedding result generated by UniversalEmbedder.

  Declaration

  Swift

  class UniversalEmbedderResult : NSObject

• VectorStoreRecord

  Represents a vector entry stored inside a vector store.

  Declaration

  Swift

  class VectorStoreRecord : NSObject