public Address unmarshall(StaxUnmarshallerContext context) throws Exception {
    Address address = new Address();
    int originalDepth = context.getCurrentDepth();
    int targetDepth = originalDepth + 1;

    if (context.isStartOfDocument()) targetDepth += 1;

    while (true) {
      XMLEvent xmlEvent = context.nextEvent();
      if (xmlEvent.isEndDocument()) return address;

      if (xmlEvent.isAttribute() || xmlEvent.isStartElement()) {

        if (context.testExpression("instanceId", targetDepth)) {
          address.setInstanceId(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("publicIp", targetDepth)) {
          address.setPublicIp(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("allocationId", targetDepth)) {
          address.setAllocationId(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("associationId", targetDepth)) {
          address.setAssociationId(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("domain", targetDepth)) {
          address.setDomain(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("networkInterfaceId", targetDepth)) {
          address.setNetworkInterfaceId(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("networkInterfaceOwnerId", targetDepth)) {
          address.setNetworkInterfaceOwnerId(
              StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }

        if (context.testExpression("privateIpAddress", targetDepth)) {
          address.setPrivateIpAddress(StringStaxUnmarshaller.getInstance().unmarshall(context));
          continue;
        }
      } else if (xmlEvent.isEndElement()) {
        if (context.getCurrentDepth() < originalDepth) {
          return address;
        }
      }
    }
  }