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1 | <?php |
2 | /** |
3 | * This program is free software; you can redistribute it and/or modify |
4 | * it under the terms of the GNU General Public License as published by |
5 | * the Free Software Foundation; either version 2 of the License, or |
6 | * (at your option) any later version. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
16 | * http://www.gnu.org/copyleft/gpl.html |
17 | * |
18 | * @file |
19 | */ |
20 | namespace Wikimedia\Rdbms\Database; |
21 | |
22 | /** |
23 | * @ingroup Database |
24 | */ |
25 | interface IDatabaseFlags { |
26 | |
27 | /** Do not remember the prior flags */ |
28 | public const REMEMBER_NOTHING = ''; |
29 | /** Remember the prior flags */ |
30 | public const REMEMBER_PRIOR = 'remember'; |
31 | /** Restore to the prior flag state */ |
32 | public const RESTORE_PRIOR = 'prior'; |
33 | /** Restore to the initial flag state */ |
34 | public const RESTORE_INITIAL = 'initial'; |
35 | |
36 | /** Enable debug logging of all SQL queries */ |
37 | public const DBO_DEBUG = 1; |
38 | /** Unused since 1.34 */ |
39 | public const DBO_NOBUFFER = 2; |
40 | /** Unused since 1.31 */ |
41 | public const DBO_IGNORE = 4; |
42 | /** Automatically start a transaction before running a query if none is active */ |
43 | public const DBO_TRX = 8; |
44 | /** Join load balancer transaction rounds (which control DBO_TRX) in non-CLI mode */ |
45 | public const DBO_DEFAULT = 16; |
46 | /** Use DB persistent connections if possible */ |
47 | public const DBO_PERSISTENT = 32; |
48 | /** DBA session mode; was used by Oracle */ |
49 | public const DBO_SYSDBA = 64; |
50 | /** Schema file mode; was used by Oracle */ |
51 | public const DBO_DDLMODE = 128; |
52 | /** |
53 | * Enable SSL/TLS in connection protocol |
54 | * @deprecated since 1.39 use 'ssl' parameter |
55 | */ |
56 | public const DBO_SSL = 256; |
57 | /** Enable compression in connection protocol */ |
58 | public const DBO_COMPRESS = 512; |
59 | /** Optimize connection for guaging server state (e.g. ILoadBalancer::CONN_UNTRACKED_GAUGE) */ |
60 | public const DBO_GAUGE = 1024; |
61 | |
62 | /** |
63 | * Set a flag for this connection |
64 | * |
65 | * @param int $flag One of (IDatabase::DBO_DEBUG, IDatabase::DBO_TRX) |
66 | * @param string $remember IDatabase::REMEMBER_* constant [default: REMEMBER_NOTHING] |
67 | */ |
68 | public function setFlag( $flag, $remember = self::REMEMBER_NOTHING ); |
69 | |
70 | /** |
71 | * Clear a flag for this connection |
72 | * |
73 | * @param int $flag One of (IDatabase::DBO_DEBUG, IDatabase::DBO_TRX) |
74 | * @param string $remember IDatabase::REMEMBER_* constant [default: REMEMBER_NOTHING] |
75 | */ |
76 | public function clearFlag( $flag, $remember = self::REMEMBER_NOTHING ); |
77 | |
78 | /** |
79 | * Restore the flags to their prior state before the last setFlag/clearFlag call |
80 | * |
81 | * @param string $state IDatabase::RESTORE_* constant. [default: RESTORE_PRIOR] |
82 | * @since 1.28 |
83 | */ |
84 | public function restoreFlags( $state = self::RESTORE_PRIOR ); |
85 | |
86 | /** |
87 | * Returns a boolean whether the flag $flag is set for this connection |
88 | * |
89 | * @param int $flag One of the class IDatabase::DBO_* constants |
90 | * @return bool |
91 | */ |
92 | public function getFlag( $flag ); |
93 | } |