title: What are the main points of hibernate?
body: <p>What are the main features of hibernate one must know?
  I guess people misunderstood my question. Here are the features I know :</p>
  
  <ul>
  <li>save/update</li>
  <li>query (hql or criteria)</li>
  <li>lazy/eager loading</li>
  <li>transaction</li>
  </ul>
  
  <p>Are there others?</p>