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Lucy::Search::LeafQuery(3pm) User Contributed Perl Documentation Lucy::Search::LeafQuery(3pm)

NAME

Lucy::Search::LeafQuery - Leaf node in a tree created by QueryParser.

SYNOPSIS

    package MyQueryParser;
    use base qw( Lucy::Search::QueryParser );
    sub expand_leaf {
        my ( $self, $leaf_query ) = @_;
        if ( $leaf_query->get_text =~ /.\*\s*$/ ) {
            return PrefixQuery->new(
                query_string => $leaf_query->get_text,
                field        => $leaf_query->get_field,
            );
        }
        else {
            return $self->SUPER::expand_leaf($leaf_query);
        }
    }

DESCRIPTION

LeafQuery objects serve as leaf nodes in the tree structure generated by QueryParser's tree() method. Ultimately, they must be transformed, typically into either TermQuery or PhraseQuery objects, as attempting to search a LeafQuery causes an error.

CONSTRUCTORS

new( [labeled params] )

    my $leaf_query = Lucy::Search::LeafQuery->new(
        text  => '"three blind mice"',    # required
        field => 'content',               # default: undef
    );
  • field - Optional field name.
  • text - Raw query text.

METHODS

get_field()

Accessor for object's "field" attribute.

get_text()

Accessor for object's "text" attribute.

INHERITANCE

Lucy::Search::LeafQuery isa Lucy::Search::Query isa Lucy::Object::Obj.

2017-08-02 perl v5.26.0