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Lucy::Search::PolySearcher – Apache Lucy Documentation
Apache Lucy™

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

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

Create a new PolySearcher.

  • schema - A Schema.
  • searchers - An array of Searchers.

METHODS

doc_max

my $int = $poly_searcher->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

my $int = $poly_searcher->doc_freq(
    field => $field  # required
    term  => $term   # required
);

Return the number of documents which contain the term in the given field.

  • field - Field name.
  • term - The term to look up.

collect

$poly_searcher->collect(
    query     => $query      # required
    collector => $collector  # required
);

Iterate over hits, feeding them into a Collector.

  • query - A Query.
  • collector - A Collector.

fetch_doc

my $hit_doc = $poly_searcher->fetch_doc($doc_id);

Retrieve a document. Throws an error if the doc id is out of range.

  • doc_id - A document id.

INHERITANCE

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