3 * StatusNet, the distributed open-source microblogging tool
5 * Cache the LDAP schema in memcache to improve performance
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Craig Andrews <candrews@integralblue.com>
25 * @copyright 2009 Craig Andrews http://candrews.integralblue.com
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link http://status.net/
29 class MemcacheSchemaCache implements Net_LDAP2_SchemaCache
35 * Initialize the simple cache
37 * Config is as following:
38 * memcache memcache instance
39 * cachekey the key in the cache to look at
41 * @param array $cfg Config array
43 public function MemcacheSchemaCache($cfg)
46 $this->cacheKey = $cfg['cacheKey'];
50 * Return the schema object from the cache
52 * @return Net_LDAP2_Schema|Net_LDAP2_Error|false
54 public function loadSchema()
56 return $this->c->get($this->cacheKey);
60 * Store a schema object in the cache
62 * This method will be called, if Net_LDAP2 has fetched a fresh
63 * schema object from LDAP and wants to init or refresh the cache.
65 * To invalidate the cache and cause Net_LDAP2 to refresh the cache,
66 * you can call this method with null or false as value.
67 * The next call to $ldap->schema() will then refresh the caches object.
69 * @param mixed $schema The object that should be cached
70 * @return true|Net_LDAP2_Error|false
72 public function storeSchema($schema) {
73 return $this->c->set($this->cacheKey, $schema);