Cache/Backend/ZendPlatform.php
LICENSE
This source file is subject to the new BSD license that is bundled with this package in the file LICENSE.txt. It is also available through the world-wide-web at this URL: http://framework.zend.com/license/new-bsd If you did not receive a copy of the license and are unable to obtain it through the world-wide-web, please send an email to license@zend.com so we can send you a copy immediately.
- Category
- Zend
- Copyright
- Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
- Package
- Zend_Cache
- Subpackage
- Zend_Cache_Backend
- Version
- $Id: ZendPlatform.php 24593 2012-01-05 20:35:02Z matthew $
\Zend_Cache_Backend_ZendPlatform
- Implements
- \Zend_Cache_Backend_Interface
- Parent(s)
- \Zend_Cache_Backend
- Copyright
- Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
- License
- New BSD License
Constants
Properties


array $_directives = array('lifetime' => 3600, 'logging' => false, 'logger' => null)
=====> (int) lifetime : - Cache lifetime (in seconds) - If null, the cache is valid forever
=====> (int) logging : - if set to true, a logging is activated throw Zend_Log
array('lifetime' => 3600, 'logging' => false, 'logger' => null)
Details- Type
- array
- Inherited_from
- \Zend_Cache_Backend::$$_directives


array $_options = array()
array()
Details- Type
- array
- Inherited_from
- \Zend_Cache_Backend::$$_options
Methods


__construct(array $options = array()) : void
Constructor Validate that the Zend Platform is loaded and licensed
Name | Type | Description |
---|---|---|
$options | array | Associative array of options |
Exception | Description |
---|---|
\Zend_Cache_Exception |


_clean(string $dir, string $mode) : boolean
Clean a directory and recursivly go over it's subdirectories
Remove all the cached files that need to be cleaned (according to mode and files mtime)
Name | Type | Description |
---|---|---|
$dir | string | Path of directory ot clean |
$mode | string | The same parameter as in Zend_Cache_Backend_ZendPlatform::clean() |
Type | Description |
---|---|
boolean | True if ok |


_isGoodTmpDir(string $dir) : boolean
Verify if the given temporary directory is readable and writable
Inherited from: \Zend_Cache_Backend::_isGoodTmpDir()Name | Type | Description |
---|---|---|
$dir | string | temporary directory |
Type | Description |
---|---|
boolean | true if the directory is ok |


_log(string $message, $priority = 4) : void
Name | Type | Description |
---|---|---|
$message | string | |
$priority |
Exception | Description |
---|---|
\Zend_Cache_Exception |


_loggerSanity() : void
Make sure if we enable logging that the Zend_Log class is available.
Inherited from: \Zend_Cache_Backend::_loggerSanity()Create a default log object if none is set.
Exception | Description |
---|---|
\Zend_Cache_Exception |


_remove(string $file) : boolean
Remove a file
If we can't remove the file (because of locks or any problem), we will touch the file to invalidate it
Name | Type | Description |
---|---|---|
$file | string | Complete file path |
Type | Description |
---|---|
boolean | True if ok |


clean(string $mode = \Zend_Cache::CLEANING_MODE_ALL, array $tags = array()) : boolean
Clean some cache records
Available modes are : Zend_Cache::CLEANING_MODE_ALL (default) => remove all cache entries ($tags is not used) Zend_Cache::CLEANING_MODE_OLD => remove too old cache entries ($tags is not used) This mode is not supported in this backend Zend_Cache::CLEANING_MODE_MATCHING_TAG => remove cache entries matching all given tags ($tags can be an array of strings or a single string) Zend_Cache::CLEANING_MODE_NOT_MATCHING_TAG => unsupported Zend_Cache::CLEANING_MODE_MATCHING_ANY_TAG => remove cache entries matching any given tags ($tags can be an array of strings or a single string)
Name | Type | Description |
---|---|---|
$mode | string | Clean mode |
$tags | array | Array of tags |
Type | Description |
---|---|
boolean | True if no problem |
Exception | Description |
---|---|
\Zend_Cache_Exception |


getLifetime(int $specificLifetime) : int
if $specificLifetime is not false, the given specific life time is used else, the global lifetime is used
Name | Type | Description |
---|---|---|
$specificLifetime | int |
Type | Description |
---|---|
int | Cache life time |


getOption(string $name) : mixed
Name | Type | Description |
---|---|---|
$name | string | Optional, the options name to return |
Type | Description |
---|---|
mixed |
Exception | Description |
---|---|
\Zend_Cache_Exceptions |


getTmpDir() : string
Determine system TMP directory and detect if we have read access
Inherited from: \Zend_Cache_Backend::getTmpDir()inspired from Zend_File_Transfer_Adapter_Abstract
Type | Description |
---|---|
string |
Exception | Description |
---|---|
\Zend_Cache_Exception | if unable to determine directory |


isAutomaticCleaningAvailable() : boolean
Return true if the automatic cleaning is available for the backend
Inherited from: \Zend_Cache_Backend::isAutomaticCleaningAvailable()DEPRECATED : use getCapabilities() instead
Type | Description |
---|---|
boolean |


load(string $id, boolean $doNotTestCacheValidity = false) : string
Test if a cache is available for the given id and (if yes) return it (false else)
Note : return value is always "string" (unserialization is done by the core not by the backend)
Name | Type | Description |
---|---|---|
$id | string | Cache id |
$doNotTestCacheValidity | boolean | If set to true, the cache validity won't be tested |
Type | Description |
---|---|
string | Cached data (or false) |


remove(string $id) : boolean
Remove a cache record
Name | Type | Description |
---|---|---|
$id | string | Cache id |
Type | Description |
---|---|
boolean | True if no problem |


save(string $data, string $id, array $tags = array(), int $specificLifetime = false) : boolean
Save some string datas into a cache record
Note : $data is always "string" (serialization is done by the core not by the backend)
Name | Type | Description |
---|---|---|
$data | string | Data to cache |
$id | string | Cache id |
$tags | array | Array of strings, the cache record will be tagged by each string entry |
$specificLifetime | int | If != false, set a specific lifetime for this cache record (null => infinite lifetime) |
Type | Description |
---|---|
boolean | true if no problem |


setDirectives(array $directives) : void
Name | Type | Description |
---|---|---|
$directives | array | assoc of directives |
Exception | Description |
---|---|
\Zend_Cache_Exception |


setOption(string $name, mixed $value) : void
Name | Type | Description |
---|---|---|
$name | string | |
$value | mixed |
Exception | Description |
---|---|
\Zend_Cache_Exception |