How can obtain a row from an attribute

Hi, i´m doing a smart project and i need only one row, how can obtain it?
The row i want obtain it from an attribute.
Thanks,

Finally i do it with this method:
     public Vector getFile(MeIterator syncBos, int fromIndex, int count, String id) {
          // We want usually all items in the MEIterator because the SmartSync API already delivered
          // the correct part of items we want to display.
          // the fromIndex and count variable are only there in case we need a single entry.          
          Vector retVec = new Vector();
          int i = 0;
          if (syncBos != null) {
               syncBos.reset();
               // Fill table header with Field Names of Top Row
               while (syncBos.hasNext()) {
                    /*                    SyncBo sb = (SyncBo) syncBos.next();
                                        if (i >= fromIndex) {
                                             Vector rowData = new Vector();
                                             for (int col = 0; col < getColumns(); col++) {
                                                  rowData.addElement(getHeaderFieldValue(sb, tableHeaderNames[col]));
                                             retVec.addElement(rowData);
                    Row row = (Row) syncBos.next();
                    if (i >= fromIndex) {
                         Vector rowData = new Vector();
                         if ((getHeaderFieldValue(row, tableHeaderNames[1])).equals(id)) {
                              for (int col = 0; col < getColumns(); col++) {
                                   rowData.addElement(getHeaderFieldValue(row, tableHeaderNames[col]));
                              retVec.addElement(rowData);                              
                    i++;
                    // return when count has been reached, when count is greater 0.
                    // if count less 0 we get all records.
                    if (count > 0) {
                         if (i >= (fromIndex + count))
                              return retVec;
          return retVec;
Thanks,

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