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.

perl v5.22.1                                       2015-12-18                    Lucy::Search::PolySearcher(3pm)