NAME

       Lucy::Search::PolySearcher - Aggregate results from multiple Searchers.

SYNOPSIS

           my $schema = MySchema->new;
           for my $index (@index_paths) {
               push @searchers, Lucy::Search::IndexSearcher->new( index => $index );
           }
           my $poly_searcher = Lucy::Search::PolySearcher->new(
               schema    => $schema,
               searchers => \@searchers,
           );
           my $hits = $poly_searcher->hits( query => $query );

DESCRIPTION

       The primary use for PolySearcher is to aggregate results from several indexes on a single
       machine.

CONSTRUCTORS

   new( [labeled params] )
           my $poly_searcher = Lucy::Search::PolySearcher->new(
               schema    => $schema,
               searchers => \@searchers,
           );

       •   schema - A Schema.

       •   searchers - An array of Searchers.

METHODS

   hits( [labeled params] )
       Return a Hits object containing the top results.

       •   query - Either a Query object or a query string.

       •   offset - The number of most-relevant hits to discard, typically used when "paging"
           through hits N at a time.  Setting "offset" to 20 and "num_wanted" to 10 retrieves
           hits 21-30, assuming that 30 hits can be found.

       •   num_wanted - The number of hits you would like to see after "offset" is taken into
           account.

       •   sort_spec - A Lucy::Search::SortSpec, which will affect how results are ranked and
           returned.

   doc_max()
       Return the maximum number of docs in the collection represented by the Searcher, which is
       also the highest possible internal doc id.  Documents which have been marked as deleted
       but not yet purged are included in this count.

   doc_freq( [labeled params] )
       Return the number of documents which contain the term in the given field.

       •   field - Field name.

       •   term - The term to look up.

   fetch_doc(doc_id)
       Retrieve a document.  Throws an error if the doc id is out of range.

       •   doc_id - A document id.

   get_schema()
       Accessor for the object's "schema" member.

INHERITANCE

       Lucy::Search::PolySearcher isa Lucy::Search::Searcher isa Lucy::Object::Obj.