Index: Zend/Cache/Backend/APC.php
===================================================================
--- Zend/Cache/Backend/APC.php	(revision 1315)
+++ Zend/Cache/Backend/APC.php	(working copy)
@@ -104,11 +104,12 @@
      * @param string $data datas to cache
      * @param string $id cache id
      * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param integer $lifetime how long this item should be cached, if null, then use the global lifetime
      * @return boolean true if no problem
      */
-    public function save($data, $id, $tags = array())
+    public function save($data, $id, $tags = array(), $lifetime = null)
     {
-        $result = apc_store($id, array($data, time()), $this->_directives['lifeTime']);
+        $result = apc_store($id, array($data, time()), (is_null($lifetime) ? $this->_directives['lifeTime'] : $lifetime));
         if (count($tags) > 0) {
             if ($this->_directives['logging']) {
                 Zend_Log::log("Zend_Cache_Backend_APC::save() : tags are unsupported by the APC backend", Zend_Log::LEVEL_WARNING);
Index: Zend/Cache/Backend/File.php
===================================================================
--- Zend/Cache/Backend/File.php	(revision 1315)
+++ Zend/Cache/Backend/File.php	(working copy)
@@ -197,9 +197,10 @@
      * @param string $data datas to cache
      * @param string $id cache id
      * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param integer $lifetime how long this item should be cached, if null, then use the global lifetime
      * @return boolean true if no problem
      */
-    public function save($data, $id, $tags = array())
+    public function save($data, $id, $tags = array(), $lifetime = null)
     {
         clearstatcache();
         $file = $this->_file($id);
Index: Zend/Cache/Backend/Interface.php
===================================================================
--- Zend/Cache/Backend/Interface.php	(revision 1315)
+++ Zend/Cache/Backend/Interface.php	(working copy)
@@ -64,9 +64,10 @@
      * @param string $data datas to cache
      * @param string $id cache id
      * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param integer $lifetime how long this item should be cached, if null, then use the global lifetime
      * @return boolean true if no problem
      */
-    public function save($data, $id, $tags = array());
+    public function save($data, $id, $tags = array(), $lifetime = null);
     
     /**
      * Remove a cache record
Index: Zend/Cache/Backend/Memcached.php
===================================================================
--- Zend/Cache/Backend/Memcached.php	(revision 1315)
+++ Zend/Cache/Backend/Memcached.php	(working copy)
@@ -163,16 +163,17 @@
      * @param string $data datas to cache
      * @param string $id cache id
      * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param integer $lifetime how long this item should be cached, if null, then use the global lifetime
      * @return boolean true if no problem
      */
-    public function save($data, $id, $tags = array())
+    public function save($data, $id, $tags = array(), $lifetime = null)
     {
         if ($this->_options['compression']) {
             $flag = MEMCACHE_COMPRESSED;
         } else {
             $flag = 0;
         }
-        $result = $this->_memcache->set($id, array($data, time()), $flag, $this->_directives['lifeTime']);
+        $result = $this->_memcache->set($id, array($data, time()), $flag, (is_null($lifetime) ? $this->_directives['lifeTime'] : $lifetime));
         if (count($tags) > 0) {
             if ($this->_directives['logging']) {
                 Zend_Log::log("Zend_Cache_Backend_Memcached::save() : tags are unsupported by the Memcached backend", Zend_Log::LEVEL_WARNING);
Index: Zend/Cache/Backend/Sqlite.php
===================================================================
--- Zend/Cache/Backend/Sqlite.php	(revision 1315)
+++ Zend/Cache/Backend/Sqlite.php	(working copy)
@@ -146,9 +146,10 @@
      * @param string $data datas to cache
      * @param string $id cache id
      * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param integer $lifetime how long this item should be cached, if null, then use the global lifetime
      * @return boolean true if no problem
      */
-    public function save($data, $id, $tags = array())
+    public function save($data, $id, $tags = array(), $lifetime = null)
     {
         if (!$this->_checkStructureVersion()) {
             $this->_buildStructure();
@@ -158,10 +159,12 @@
         }    
         $data = @sqlite_escape_string($data);
         $mktime = time();
-        if (is_null($this->_directives['lifeTime'])) {
+        if (!is_null($lifetime)) {
+        	$expire = $mktime + $lifetime;
+        } elseif (!is_null($this->_directives['lifeTime'])) {
+            $expire = $mktime + $this->_directives['lifeTime'];
+        } else {
             $expire = 0;
-        } else {
-            $expire = $mktime + $this->_directives['lifeTime'];
         }
         @sqlite_query($this->_db, "DELETE FROM cache WHERE id='$id'");
         $sql = "INSERT INTO cache (id, content, lastModified, expire) VALUES ('$id', '$data', $mktime, $expire)";
Index: Zend/Cache/Backend/Test.php
===================================================================
--- Zend/Cache/Backend/Test.php	(revision 1315)
+++ Zend/Cache/Backend/Test.php	(working copy)
@@ -148,9 +148,10 @@
      * @param string $data datas to cache
      * @param string $id cache id
      * @param array $tags array of strings, the cache record will be tagged by each string entry
+     * @param integer $lifetime how long this item should be cached, if null, then use the global lifetime
      * @return boolean true if no problem
      */
-    public function save($data, $id, $tags = array())
+    public function save($data, $id, $tags = array(), $lifetime = null)
     {
         $this->_addLog('save', array($data, $id, $tags));
         if ($id=='false') {