Nodelet Publisher

edit

 virtual void onInit()
{
    ros::NodeHandle & private_nh = getPrivateNodeHandle();
    pub = private_nh.advertise<nodelet_test::buff>("chatter2", 10);
    nodelet_test::buff buffer;
    buffer.buffer_data.push_back(20);
    while(ros::ok())
    {
        pub.publish(buffer);
    }

}

I have the example code above for nodelet publisher only. Since I do not use callbacks (no subscriber ), is the way its done ? adding while loop inside onInit () ?