Lucy::Search::NOTQuery(3pm)

Lucy::Search::NOTQuery3pm

Invert the result set of another query.

Usage

    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 );
    ...

Overview

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 Lucy::Object::Obj.

Releases

2 releases since Debian 8 (Jessie); the text changed 1 time.

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