Lucy::Search::PolyQuery - phpMan
Lucy::Search::PolyQuery(3) User Contributed Perl Documentation Lucy::Search::PolyQuery(3)
NAME
Lucy::Search::PolyQuery - Base class for composite Query objects.
SYNOPSIS
sub walk {
my $query = shift;
if ( $query->isa("Lucy::Search::PolyQuery") ) {
if ( $query->isa("Lucy::Search::ORQuery") ) { ... }
elsif ( $query->isa("Lucy::Search::ANDQuery") ) { ... }
elsif ( $query->isa("Lucy::Search::RequiredOptionalQuery") ) {
...
}
elsif ( $query->isa("Lucy::Search::NOTQuery") ) { ... }
}
else { ... }
}
DESCRIPTION
PolyQuery serves as a shared base class for ANDQuery, ORQuery, NOTQuery, and
RequiredOptionalQuery. All of these classes may serve as nodes in composite Query with a
tree structure which may be walked.
INHERITANCE
Lucy::Search::PolyQuery isa Lucy::Search::Query isa Clownfish::Obj.
perl v5.20.2 2015-12-01 Lucy::Search::PolyQuery(3)
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