ass. One
    supports the database used for the class catalog, and the other is used as a
    handle for the class catalog itself.
</p>
          <a id="java_dbt20"></a>
          <pre class="programlisting">public class MyDbs {

    // The databases that our application uses
    private Database vendorDb = null;
    private Database inventoryDb = null;
    <strong class="userinput"><code>private Database classCatalogDb = null;

    // Needed for object serialization
    private StoredClassCatalog classCata