algoliasearch/src/main/java/com/algolia/search/saas/Searchable.java
public Request searchForFacetValuesAsync(@NonNull String facetName, @NonNull String facetText, @Nullable Query query, @Nullable final RequestOptions requestOptions, @NonNull final CompletionHandler handler) {
		throw new UnsupportedOperationException("make sure to override searchForFacetValuesAsync for custom backend");
	}
public Request searchForFacetValuesAsync(@NonNull String facetName, @NonNull String facetText, @Nullable Query query, @Nullable final RequestOptions requestOptions, @NonNull final CompletionHandler handler) {
		throw new UnsupportedOperationException("make sure to override searchForFacetValuesAsync for custom backend");
	}
Search for some text in a facet values, optionally restricting the returned values to those contained in objects matching other (regular) search criteria.

@param facetName      The name of the facet to search. It must have been declared in the index's `attributesForFaceting` setting with the `searchable()` modifier.
@param facetText      The text to search for in the facet's values.
@param query          An optional query to take extra search parameters into account. There parameters apply to index objects like in a regular search query. Only facet values contained in the matched objects will be returned
@param requestOptions Request-specific options.
@param handler        A Completion handler that will be notified of the request's outcome.
@return A cancellable request.