clone method

Implementation

BoxerQueryOption clone() {
  BoxerQueryOption newOp = BoxerQueryOption();
  newOp.distinct = this.distinct;
  newOp.columns = this.columns;
  newOp.where = this.where;
  newOp.whereArgs = this.whereArgs;
  newOp.groupBy = this.groupBy;
  newOp.having = this.having;
  newOp.orderBy = this.orderBy;
  newOp.limit = this.limit;
  newOp.offset = this.offset;
  return newOp;
}