Struct FastembedUserDefinedOpts 

pub struct FastembedUserDefinedOpts {
    pub onnx_file: Vec<u8>,
    pub tokenizer_file: Vec<u8>,
    pub tokenizer_config_file: Option<Vec<u8>>,
    pub special_tokens_map_file: Option<Vec<u8>>,
    pub config_file: Option<Vec<u8>>,
    pub dim: usize,
    pub pooling: PoolingMode,
    pub execution: ExecutionPreference,
    pub max_length: usize,
}

Options for FastembedEmbedder::from_user_defined. All byte buffers are moved into the constructor — they aren’t retained inside the embedder once the ONNX session has been built (the session owns its parsed graph).

Storage-side dim invariant: see the constructor’s rustdoc — dim must match the ONNX model’s output AND should match Lunaris’s storage schema (default 768) unless storage is reindexed.

Fields

onnx_file: Vec<u8>

Raw bytes of the ONNX graph (e.g., model.onnx).

tokenizer_file: Vec<u8>

Raw bytes of the HF-format tokenizer.json.

tokenizer_config_file: Option<Vec<u8>>

Optional tokenizer_config.json bytes. Empty if None.

special_tokens_map_file: Option<Vec<u8>>

Optional special_tokens_map.json bytes.

config_file: Option<Vec<u8>>

Optional model config.json bytes (architecture metadata).

dim: usize

Output dimensionality declared by the operator. MUST match what the ONNX graph actually emits; a mismatch surfaces as a vector-index rejection at the first ingest call.

pooling: PoolingMode

Pooling strategy applied to token-level embeddings to produce the sentence vector. Mirrors fastembed’s Pooling enum.

execution: ExecutionPreference

ORT execution provider preference (same enum as the default path).

max_length: usize

Token context window. Defaults to 2048 to match EmbeddingGemma300M.

Trait Implementations

impl Clone for FastembedUserDefinedOpts

fn clone(&self) -> FastembedUserDefinedOpts

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FastembedUserDefinedOpts

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FastembedUserDefinedOpts

fn default() -> Self

Returns the “default value” for a type.