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    Interface IFeatureDataAccess

    The read-only data-access contract the FeatureAssembly executor depends on.

    Implementations:

    • RunViewDataAccess — production, wraps RunView (DB-backed).
    • test fixtures — in-memory, back the unit tests with plain arrays.
    interface IFeatureDataAccess {
        fetchEmbedding(
            entity: string,
            recordId: string,
            embeddingModelRef: string,
            dims: number,
        ): Promise<number[]>;
        fetchRows(params: FetchRowsParams): Promise<FetchRowsResult>;
    }

    Implemented by

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    Methods

    fetchEmbedding fetchRows

    Methods

    • Fetch a persisted, version-pinned embedding vector for a single record of an entity (plan §5.2). Returns the dense numeric vector, or null when no persisted embedding exists for that record/model.

      The default implementation is a documented integration seam (see RunViewDataAccess.fetchEmbedding); tests supply vectors directly.

      Parameters

      • entity: string

        entity whose persisted embedding is requested

      • recordId: string

        primary-key value of the record

      • embeddingModelRef: string

        pinned embedding-model id/name (part of model lineage)

      • dims: number

        expected dimensionality

      Returns Promise<number[]>

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