Lucy::Index::LexiconReader - Read Lexicon data.
my $lex_reader = $seg_reader->obtain("Lucy::Index::LexiconReader"); my $lexicon = $lex_reader->lexicon( field => 'title' );
LexiconReader reads term dictionary information.
my $lexicon = $lexicon_reader->lexicon( field => $field, # required term => $term, # default: undef );
Return a new Lexicon for the given field. Will return undef if either the field is not indexed, or if no documents contain a value for the field.
field
field - Field name.
term - Pre-locate the Lexicon to this term.
my $int = $lexicon_reader->doc_freq( field => $field, # required term => $term, # required );
Return the number of documents where the specified term is present.
my $result = $lexicon_reader->aggregator( readers => $readers, # required offsets => $offsets, # required );
Return a LexiconReader which merges the output of other LexiconReaders.
readers - An array of LexiconReaders.
offsets - Doc id start offsets for each reader.
Lucy::Index::LexiconReader isa Lucy::Index::DataReader isa Clownfish::Obj.
To install Lucy, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Lucy
CPAN shell
perl -MCPAN -e shell install Lucy
For more information on module installation, please visit the detailed CPAN module installation guide.