public function createWrapper($namespace = null) {
		if (! isset($this->_wrappers[$namespace])) {
			$wrapper  = new Wrapper($this->getBackend(), $namespace);
			$lifetime = $this->getDefaultLifetime();
			
			if ($lifetime !== null) {
				$wrapper->setDefaultLifetime($lifetime);
			}
			
			$this->_wrappers[$namespace] = $wrapper;
		}
		
		return $this->_wrappers[$namespace];
	}
public function createWrapper($namespace = null) {
		if (! isset($this->_wrappers[$namespace])) {
			$wrapper  = new Wrapper($this->getBackend(), $namespace);
			$lifetime = $this->getDefaultLifetime();
			
			if ($lifetime !== null) {
				$wrapper->setDefaultLifetime($lifetime);
			}
			
			$this->_wrappers[$namespace] = $wrapper;
		}
		
		return $this->_wrappers[$namespace];
	}
public function createWrapper ( $ namespace = null ) { if ( ! isset ( $ this -> _wrappers [ $ namespace ] ) ) { $ wrapper = new Wrapper ( $ this -> getBackend ( ) , $ namespace ) ; $ lifetime = $ this -> getDefaultLifetime ( ) ; if ( $ lifetime !== null ) { $ wrapper -> setDefaultLifetime ( $ lifetime ) ; } $ this -> _wrappers [ $ namespace ] = $ wrapper ; } return $ this -> _wrappers [ $ namespace ] ; }
Create the namespaced wrapper

@param  string $namespace
@return Wrapper
Create the namespaced wrapper