/// <summary> /// Creates a where operator query expression that is like this one, but using the supplied children. If all of the children are the same, it will return this expression. /// </summary> /// <param name="source">The <see cref="Source"/> child node of the result.</param> /// <param name="predicate">The <see cref="Predicate"/> child node of the result.</param> /// <returns>This query expression if no children are changed or an expression with the updated children.</returns> public WhereOperator Update(MonadMember source, QueryTree predicate) { if (source == Source && predicate == Predicate) { return(this); } return(QueryExpressionFactory.Where(ElementType, source, predicate)); }