public function cache($key, $value, $expire = null)
    {
        $this->_caches[$key] = $value;
        return true;
    }
public function cache($key, $value, $expire = null)
    {
        $this->_caches[$key] = $value;
        return true;
    }
public function cache ( $ key , $ value , $ expire = null ) { $ this -> _caches [ $ key ] = $ value ; return true ; }
expire not supported.

{@inheritdoc}
expire not supported .