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1 package DBD::Gofer::Policy::rush; 2 3 # $Id: rush.pm 10087 2007-10-16 12:42:37Z timbo $ 4 # 5 # Copyright (c) 2007, Tim Bunce, Ireland 6 # 7 # You may distribute under the terms of either the GNU General Public 8 # License or the Artistic License, as specified in the Perl README file. 9 10 use strict; 11 use warnings; 12 13 our $VERSION = sprintf("0.%06d", q$Revision: 10087 $ =~ /(\d+)/o); 14 15 use base qw(DBD::Gofer::Policy::Base); 16 17 __PACKAGE__->create_policy_subs({ 18 19 # always use connect_cached on server 20 connect_method => 'connect_cached', 21 22 # use same methods on server as is called on client 23 # (because code not using placeholders would bloat the sth cache) 24 prepare_method => '', 25 26 # Skipping the connect check is fast, but it also skips 27 # fetching the remote dbh attributes! 28 # Make sure that your application doesn't need access to dbh attributes. 29 skip_connect_check => 1, 30 31 # most code doesn't rely on sth attributes being set after prepare 32 skip_prepare_check => 1, 33 34 # we're happy to use local method if that's the same as the remote 35 skip_default_methods => 1, 36 37 # ping is almost meaningless for DBD::Gofer and most transports anyway 38 skip_ping => 1, 39 40 # don't update dbh attributes at all 41 # XXX actually we currently need dbh_attribute_update for skip_default_methods to work 42 # and skip_default_methods is more valuable to us than the cost of dbh_attribute_update 43 dbh_attribute_update => 'none', # actually means 'first' currently 44 #dbh_attribute_list => undef, 45 46 # we'd like to set locally_* but can't because drivers differ 47 48 # in a rush assume metadata doesn't change 49 cache_tables => 1, 50 cache_table_info => 1, 51 cache_column_info => 1, 52 cache_primary_key_info => 1, 53 cache_foreign_key_info => 1, 54 cache_statistics_info => 1, 55 cache_get_info => 1, 56 }); 57 58 59 1; 60 61 =head1 NAME 62 63 DBD::Gofer::Policy::rush - The 'rush' policy for DBD::Gofer 64 65 =head1 SYNOPSIS 66 67 $dbh = DBI->connect("dbi:Gofer:transport=...;policy=rush", ...) 68 69 =head1 DESCRIPTION 70 71 The C<rush> policy tries to make as few round-trips as possible. 72 It's the opposite end of the policy spectrum to the C<pedantic> policy. 73 74 Temporary docs: See the source code for list of policies and their defaults. 75 76 In a future version the policies and their defaults will be defined in the pod and parsed out at load-time. 77 78 =head1 AUTHOR 79 80 Tim Bunce, L<http://www.tim.bunce.name> 81 82 =head1 LICENCE AND COPYRIGHT 83 84 Copyright (c) 2007, Tim Bunce, Ireland. All rights reserved. 85 86 This module is free software; you can redistribute it and/or 87 modify it under the same terms as Perl itself. See L<perlartistic>. 88 89 =cut 90
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