private PhoneUser getUser(String name) throws PersistenceException {
    if (name != null && name.length() > 0) {
      if (dataStore != null) {
        return dataStore.find(PhoneUser.class, name);
      } else {
        String[] userInfo = viewContext.getInstanceData(name).split(";");
        return new PhoneUser(name, userInfo[0], userInfo[1]);
      }
    }
    return null;
  }
The view data store.
<code>null</code> indicates that the view properties should be used instead of the data store.
ambari-views/examples/phone-list-upgrade-view/src/main/java/org/apache/ambari/view/phonelist/PhoneListServlet.java