ss="literal">DBWriter.java</code> provides the implementation
            for our database writer thread. It is responsible for: 
        </p>
        <div class="itemizedlist">
          <ul type="disc">
            <li>
              <p>
                    All transaction management.
                </p>
            </li>
            <li>
              <p>
                    Responding to deadlock exceptions.
                </p>
            </li>
            <li>
              <p>
                    P