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=head1 NAME

Lucy::Index::LexiconReader - Read Lexicon data.

=head1 SYNOPSIS

    my $lex_reader = $seg_reader->obtain("Lucy::Index::LexiconReader");
    my $lexicon    = $lex_reader->lexicon( field => 'title' );



=head1 DESCRIPTION

LexiconReader reads term dictionary information.



=head1 ABSTRACT METHODS

=head2 lexicon( I<[labeled params]> )

Return a new Lexicon for the given C<< field >>.  Will return
undef if either the field is not indexed, or if no documents contain a
value for the field.

=over

=item *

B<field> - Field name.

=item *

B<term> - Pre-locate the Lexicon to this term.

=back

=head2 doc_freq( I<[labeled params]> )

Return the number of documents where the specified term is present.





=head1 INHERITANCE

Lucy::Index::LexiconReader isa L<Lucy::Index::DataReader> isa L<Lucy::Object::Obj>.


=cut