public function setCompression($compression)
    {
        if (is_string($this->_compression)) {
            $compression = array('adapter' => $compression);
        }

        $this->_compression = $compression;
        return $this;
    }
public function setCompression($compression)
    {
        if (is_string($this->_compression)) {
            $compression = array('adapter' => $compression);
        }

        $this->_compression = $compression;
        return $this;
    }
public function setCompression ( $ compression ) { if ( is_string ( $ this -> _compression ) ) { $ compression = array ( 'adapter' => $ compression ) ; } $ this -> _compression = $ compression ; return $ this ; }
Sets a internal compression for values to encrypt

@param string|array $compression
@return Zend_Filter_Encrypt_Openssl
Sets a internal compression for values to encrypt