• NAME
• SYNOPSIS
• DESCRIPTION
• CONSTRUCTORS
  • new
• METHODS
  • get_field
  • get_text
  • make_compiler
• INHERITANCE

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

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

Create a new LeafQuery.

• field - Optional field name.

• text - Raw query text.

METHODS

get_field

    my $string = $leaf_query->get_field();

Accessor for object’s field attribute.

get_text

    my $string = $leaf_query->get_text();

Accessor for object’s text attribute.

make_compiler

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

Throws an error.

INHERITANCE

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