function generateSampleData(rowCount) {
  var rows = new Array(rowCount);
  var tableSchema = db.getSchema().getDummyTable();
  for (var i = 0; i < rowCount; i++) {
    rows[i] = tableSchema.createRow({
      string: 'string' + i.toString(),
      number: 100 * i,
      integer: 100 * i,
      string2: 'string2' + i.toString(),
      boolean: false
    });
  }

  return rows;
}
@param {number} rowCount The number of rows to generate.
@return {!Array<!hr.db.row.DummyTable>}