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.