Lucy::Index::Lexicon - Iterator for a field’s terms.
my $lex_reader = $seg_reader->obtain('Lucy::Index::LexiconReader'); my $lexicon = $lex_reader->lexicon( field => 'content' ); while ( $lexicon->next ) { print $lexicon->get_term . "\n"; }
A Lexicon is an iterator which provides access to all the unique terms for a given field in sorted order.
If an index consists of two documents with a ‘content’ field holding “three blind mice” and “three musketeers” respectively, then iterating through the ‘content’ field’s lexicon would produce this list:
blind mice musketeers three
$lexicon->seek($target); $lexicon->seek(); # default: undef
Seek the Lexicon to the first iterator state which is greater than or equal to target. If target is undef, reset the iterator.
target
my $bool = $lexicon->next();
Proceed to the next term.
Returns: true until the iterator is exhausted, then false.
$lexicon->reset();
Reset the iterator. next() must be called to proceed to the first element.
my $obj = $lexicon->get_term();
Return the current term, or undef if the iterator is not in a valid state.
Lucy::Index::Lexicon isa Clownfish::Obj.
To install LucyX::Search::Filter, copy and paste the appropriate command in to your terminal.
cpanm
cpanm LucyX::Search::Filter
CPAN shell
perl -MCPAN -e shell install LucyX::Search::Filter
For more information on module installation, please visit the detailed CPAN module installation guide.