title: Vaadin: table container has object members
body: <p>I'm extending the <code>BeanItemContainer</code> and using it as a container for a table in Vaadin. </p>
  
  <pre><code>public class MyContainer extends BeanItemContainer&lt;MyClass&gt;
          implements Serializable {
  ...
  }
  </code></pre>
  
  <p>The <code>MyClass</code> object has a structure as shown below:</p>
  
  <pre><code>public class MyClass {
      private int id;
      private InnerClass data;
  ...
  }
  </code></pre>
  
  <p>And the InnerClass has the structure:</p>
  
  <pre><code>public class InnerClass {
      private int propA;
      private String propB;
  ...
  }
  </code></pre>
  
  <p>I'd like to display the id and data.propA columns but I'm not sure how to in Vaadin.</p>