Struct SearchParams 

pub struct SearchParams {

    pub top_k: Option<usize>,
    pub system_prompt: Option<String>,
    pub system_prompt_path: Option<String>,
    pub wide_search_top_k: Option<usize>,
    pub triplet_distance_penalty: Option<f32>,
    pub node_type: Option<String>,
    pub node_name: Option<Vec<String>>,
    pub node_name_filter_operator: Option<String>,
    pub feedback_influence: Option<f32>,
    pub max_iter: Option<usize>,
    pub context_extension_rounds: Option<usize>,
    pub response_schema: Option<Value>,
    pub neighborhood_depth: Option<usize>,
    pub neighborhood_seed_top_k: Option<usize>,
}

Per-request retriever behavior overrides.

All fields are optional. When None, the retriever falls back to its constructor-time defaults. This lets callers override only the params they care about on a per-request basis.

Fields

top_k: Option<usize>

Max number of results to return from vector search.

system_prompt: Option<String>

Override the LLM system prompt text directly.

system_prompt_path: Option<String>

Override the LLM system prompt by file path.

wide_search_top_k: Option<usize>

Number of candidates for wide graph search (before re-ranking).

triplet_distance_penalty: Option<f32>

Distance penalty applied during triplet scoring.

node_type: Option<String>

Filter graph to nodes of this type.

node_name: Option<Vec<String>>

Filter graph to nodes with these names.

node_name_filter_operator: Option<String>

“OR” (default) or “AND” for multi-name filtering.

feedback_influence: Option<f32>

Influence weight for feedback-based re-ranking.

max_iter: Option<usize>

Maximum CoT iterations (GraphCompletionCot).

context_extension_rounds: Option<usize>

Number of context extension rounds (GraphCompletionContextExtension).

response_schema: Option<Value>

Optional JSON schema for structured LLM output. When Some, completion-generating retrievers return SearchOutput::Structured instead of SearchOutput::Text.

neighborhood_depth: Option<usize>

Number of hops from query result nodes to include in the graph context.

neighborhood_seed_top_k: Option<usize>

Number of initial seed nodes for neighborhood expansion.

Implementations

impl SearchParams

pub fn top_k_or(&self, default: usize) -> usize

pub fn wide_search_top_k_or(&self, default: usize) -> usize

pub fn triplet_distance_penalty_or(&self, default: f32) -> f32

pub fn feedback_influence_or(&self, default: f32) -> f32

Trait Implementations

impl Clone for SearchParams

fn clone(&self) -> SearchParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SearchParams

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

Formats the value using the given formatter.

impl Default for SearchParams

fn default() -> SearchParams

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SearchParams

fn deserialize<__D>( __deserializer: __D, ) -> Result<SearchParams, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&SearchRequest> for SearchParams

fn from(req: &SearchRequest) -> SearchParams

Converts to this type from the input type.

impl Serialize for SearchParams

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.