a1.setPhotographerId(photographerId);
a1.setPhotographerName("Amresh");
a1.setPersonalDetail(new PersonalDetail("xamry", "password1", "Single"));
a1.addTweet(new Tweet("My First Tweet", "Web"));
a1.addTweet(new Tweet("My Second Tweet", "Android"));
a1.addTweet(new Tweet("My Third Tweet", "iPad"));
a1.addTag("nosql");
a1.addTag("kundera");