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NWELLNHOF / Lucy-0.4.99_2 / lib / Lucy / Search / LeafQuery.pod 

            

              
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# ***********************************************
# 
# !!!! DO NOT EDIT !!!!
# 
# This file was auto-generated by Build.PL.
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# ***********************************************
# 
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
# 
#     http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
=encoding utf8
=head1 NAME
Lucy::Search::LeafQuery - Leaf node in a tree created by QueryParser.
=head1 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);
        }
    }
=head1 DESCRIPTION
LeafQuery objects serve as leaf nodes in the tree structure generated by
L<QueryParser|Lucy::Search::QueryParser>’s L<tree()|Lucy::Search::QueryParser/tree> method.
Ultimately, they must be transformed, typically into either
L<TermQuery|Lucy::Search::TermQuery> or
L<PhraseQuery|Lucy::Search::PhraseQuery> objects, as attempting to
search a LeafQuery causes an error.
=head1 CONSTRUCTORS
=head2 new
    my $leaf_query = Lucy::Search::LeafQuery->new(
        text  => '"three blind mice"',    # required
        field => 'content',               # default: undef
    );
Create a new LeafQuery.
=over
=item *
B<field> - Optional field name.
=item *
B<text> - Raw query text.
=back
=head1 METHODS
=head2 get_field
    my $retval = $leaf_query->get_field();
Accessor for object’s C<field> attribute.
=head2 get_text
    my $retval = $leaf_query->get_text();
Accessor for object’s C<text> attribute.
=head2 make_compiler
    my $retval = $leaf_query->make_compiler(
        searcher    => $searcher     # required
        boost       => $boost        # required
        subordinate => $subordinate  # default: false
    );
Throws an error.
=head1 INHERITANCE
Lucy::Search::LeafQuery isa L<Lucy::Search::Query> isa Clownfish::Obj.
=cut