title: db4o: how can we get the data for only one object?
body: <p>How can DB4o users get back the data for only one object?</p>
  
  <p>(This is akin to getting the data for only one row of a traditional relational database table.)</p>
  
  <p>With DB4o, I only know how to get the data back for a class of objects but not simply one unique object instance.</p>