Struct MultiQueryPreprocessor 

pub struct MultiQueryPreprocessor<E: QueryExpander> { /* private fields */ }

Multi-query expansion preprocessor.

Expands a single query into multiple related queries using different strategies. This can help retrieve documents that match different phrasings or aspects of the original query.

Implementations

impl<E: QueryExpander> MultiQueryPreprocessor<E>

pub fn new(expander: E) -> Self

Create a new multi-query preprocessor.

pub fn with_max_queries(self, max: usize) -> Self

Set the maximum number of expanded queries.

pub fn with_original_query(self, include: bool) -> Self

Whether to include the original query in results.

Trait Implementations

impl<E: Clone + QueryExpander> Clone for MultiQueryPreprocessor<E>

fn clone(&self) -> MultiQueryPreprocessor<E>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<E: Debug + QueryExpander> Debug for MultiQueryPreprocessor<E>

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

Formats the value using the given formatter.

impl<E: QueryExpander> QueryPreprocessor for MultiQueryPreprocessor<E>

fn preprocess(&self, query: &str) -> Result<Vec<String>>

Preprocess a query, potentially returning multiple expanded queries.

fn name(&self) -> &str

Get the name of this preprocessor for debugging.