}

    /**
     * Gets the onDestroy listener.
     *
     * @return The onDestroy listener, or null if not set
     */
    public OnDestroyListener<T> getOnDestroyListener() {
        return onDestroyListener;
    }

    /**
     * Sets the onDestroy listener.
     *
     * @param onDestroyListener The onDestroy listener to set
     */