>
                <div>
                  <h5 class="title"><a id="idp51330408"></a>b_read_only</h5>
                </div>
              </div>
            </div>
            <p>Whether open a read only cursor. Only effective when using Berkeley DB Concurrent Data Store. </p>
          </div>
        </div>
        <pre class="programlisting">
db_set_iterator()
 </pre>
        <p>Default constructor, dose not create the cursor for now. </p>
        <pre class="programlisting">
db_set_iterator(const db_set_