NAME

Lucy::Search::NOTQuery - Invert the result set of another Query.

SYNOPSIS

my $not_bar_query = Lucy::Search::NOTQuery->new( 
    negated_query => $bar_query,
);
my $foo_and_not_bar_query = Lucy::Search::ANDQuery->new(
    children => [ $foo_query, $not_bar_query ].
);
my $hits = $searcher->hits( query => $foo_and_not_bar_query );
...

DESCRIPTION

A NOTQuery wraps another Query and matches against its inverse document set. All matching docs recieve a score of 0.0.

NOTQuery is often used in conjunction with ANDQuery to provide "a AND NOT b" semantics.

CONSTRUCTORS

new( [labeled params] )

my $not_query = Lucy::Search::NOTQuery->new( 
    negated_query => $query,
);

• negated_query - The Query whose result set should be inverted.

METHODS

get_negated_query()

Accessor for the object's negated query.

set_negated_query(negated_query)

Setter for the object's negated query.

INHERITANCE

Lucy::Search::NOTQuery isa Lucy::Search::PolyQuery isa Lucy::Search::Query isa Clownfish::Obj.