gnu-social/extlib/Net/LDAP2/SchemaCache.interface.php

60 lines
2.0 KiB
PHP

<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
/**
* File containing the Net_LDAP2_SchemaCache interface class.
*
* PHP version 5
*
* @category Net
* @package Net_LDAP2
* @author Benedikt Hallinger <beni@php.net>
* @copyright 2009 Benedikt Hallinger
* @license http://www.gnu.org/licenses/lgpl-3.0.txt LGPLv3
* @version SVN: $Id: SchemaCache.interface.php 286718 2009-08-03 07:30:49Z beni $
* @link http://pear.php.net/package/Net_LDAP2/
*/
/**
* Interface describing a custom schema cache object
*
* To implement a custom schema cache, one must implement this interface and
* pass the instanciated object to Net_LDAP2s registerSchemaCache() method.
*/
interface Net_LDAP2_SchemaCache
{
/**
* Return the schema object from the cache
*
* Net_LDAP2 will consider anything returned invalid, except
* a valid Net_LDAP2_Schema object.
* In case you return a Net_LDAP2_Error, this error will be routed
* to the return of the $ldap->schema() call.
* If you return something else, Net_LDAP2 will
* fetch a fresh Schema object from the LDAP server.
*
* You may want to implement a cache aging mechanism here too.
*
* @return Net_LDAP2_Schema|Net_LDAP2_Error|false
*/
public function loadSchema();
/**
* Store a schema object in the cache
*
* This method will be called, if Net_LDAP2 has fetched a fresh
* schema object from LDAP and wants to init or refresh the cache.
*
* In case of errors you may return a Net_LDAP2_Error which will
* be routet to the client.
* Note that doing this prevents, that the schema object fetched from LDAP
* will be given back to the client, so only return errors if storing
* of the cache is something crucial (e.g. for doing something else with it).
* Normaly you dont want to give back errors in which case Net_LDAP2 needs to
* fetch the schema once per script run and instead use the error
* returned from loadSchema().
*
* @return true|Net_LDAP2_Error
*/
public function storeSchema($schema);
}