diff options
| author | wei <> | 2007-11-09 01:09:06 +0000 |
|---|---|---|
| committer | wei <> | 2007-11-09 01:09:06 +0000 |
| commit | a1aaefbd7a4cb2f6e8683215baf076bb2eff9c18 (patch) | |
| tree | 2af060e2dd716000b39fec9f2fa1fcb9fec70d9c /framework/Caching/TCache.php | |
| parent | 68d7458c3031dc339344657c0ec1120e43a82f56 (diff) | |
TCache implements ArrayAccess. duplicate copyFrom in TActiveRecord
Diffstat (limited to 'framework/Caching/TCache.php')
| -rw-r--r-- | framework/Caching/TCache.php | 51 |
1 files changed, 50 insertions, 1 deletions
diff --git a/framework/Caching/TCache.php b/framework/Caching/TCache.php index f44482e0..e60cecdd 100644 --- a/framework/Caching/TCache.php +++ b/framework/Caching/TCache.php @@ -38,12 +38,15 @@ Prado::using('System.Collections.TList'); * - {@link deleteValue}
* and optionally {@link flush}
*
+ * Since version 3.1.2, TCache implements the ArrayAccess interface such that
+ * the cache acts as an array.
+ *
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id$
* @package System.Caching
* @since 3.0
*/
-abstract class TCache extends TModule implements ICache
+abstract class TCache extends TModule implements ICache, ArrayAccess
{
private $_prefix=null;
private $_primary=true;
@@ -231,6 +234,52 @@ abstract class TCache extends TModule implements ICache * @return boolean if no error happens during deletion
*/
abstract protected function deleteValue($key);
+
+ /**
+ * Returns whether there is a cache entry with a specified key.
+ * This method is required by the interface ArrayAccess.
+ * @param string a key identifying the cached value
+ * @return boolean
+ */
+ public function offsetExists($id)
+ {
+ return $this->get($id) !== false;
+ }
+
+ /*
+ * Retrieves the value from cache with a specified key.
+ * This method is required by the interface ArrayAccess.
+ * @param string a key identifying the cached value
+ * @return mixed the value stored in cache, false if the value is not in the cache or expired.
+ */
+ public function offsetGet($id)
+ {
+ return $this->get($id);
+ }
+
+ /*
+ * Stores the value identified by a key into cache.
+ * If the cache already contains such a key, the existing value will be
+ * replaced with the new ones. To add expiration and dependencies, use the set() method.
+ * This method is required by the interface ArrayAccess.
+ * @param string the key identifying the value to be cached
+ * @param mixed the value to be cached
+ */
+ public function offsetSet($id, $value)
+ {
+ $this->set($id, $value);
+ }
+
+ /*
+ * Deletes the value with the specified key from cache
+ * This method is required by the interface ArrayAccess.
+ * @param string the key of the value to be deleted
+ * @return boolean if no error happens during deletion
+ */
+ public function offsetUnset($id)
+ {
+ $this->delete($id);
+ }
}
|