=head1 NAME

XmlQueryExpression - A Perl interface to the DbXml XmlQueryExpression Class

=head1 SYNOPSIS

    use Sleepycat::DbXml;

    my $mgr = new XmlManager;
    my $txn = $mgr->createTransaction();
    my $exp = $mgr->prepare();

    my $query = $exp->getQuery();

    my $contextitem = new XmlValue(...);
    my $context = $mgr->createQueryContext;

    $exp->execute([$txn,] $contextitem, $context [, $flags]);
    $exp->execute([$txn,] $context [, $flags]);


=head1 DESCRIPTION



=head1 CONFORMANCE to C++ API

The Perl interface to XMlValue is identical to the C++ API.

=head1 Constructor

This class does not have a public constructor. XmlQueryExpression objects
are only returned from XmlManager::prepare.

=head1 Methods

=head2 getXPathQuery

=head1 EXAMPLES


=head1 SEE ALSO


=head1 AUTHOR

Paul Marquess