++ed by:
ARISTOTLE EMAZEP NWELLNHOF JETEVE KEEDI

9 PAUSE users
6 non-PAUSE users.

Nick Wellnhofer
and 1 contributors

NAME

Lucy::Search::NoMatchQuery - Query which matches no documents.

DESCRIPTION

NoMatchQuery is a utility class representing a query which matches nothing. Typical usage might include e.g. returning a NoMatchQuery when a QueryParser is asked to parse an empty string.

CONSTRUCTORS

new

    my $no_match_query = Lucy::Search::NoMatchQuery->new;

Constructor. Takes no arguments.

METHODS

make_compiler

    my $compiler = $no_match_query->make_compiler(
        searcher    => $searcher     # required
        boost       => $boost        # required
        subordinate => $subordinate  # default: false
    );

Abstract factory method returning a Compiler derived from this Query.

  • searcher - A Searcher.

  • boost - A scoring multiplier.

  • subordinate - Indicates whether the Query is a subquery (as opposed to a top-level query). If false, the implementation must invoke normalize() on the newly minted Compiler object before returning it.

INHERITANCE

Lucy::Search::NoMatchQuery isa Lucy::Search::Query isa Clownfish::Obj.