title: BasicDBList to Collection MongoDB
body: <p>This may seem like a dumb question but I don't know how to do this.</p>
  
  <p>I have a document in a <code>DBCollection</code> that looks like this:</p>
  
  <pre><code>{ 
      "_id" : ObjectId("4ef4ee517e696a48037861c8"), 
      "income" : 2500, 
      "month" : "2011-12", 
      "expenses" : [    
                       {       
                           "id" : 1,       
                           "category" : "EMERGENCY",
                           "type" : "SAVING",      
                           "date" : "2011-12-23 10:25:30", 
                           "value" : 0.25" 
                       } ] 
  }
  </code></pre>
  
  <p>I want to get all the elements of the inner array and put them into a <code>Collection</code> (Java <code>Collection</code>, e.g <code>List&lt;E&gt;</code>), but I can't seem to find anything on how to do it (and I've searched).</p>