Cal. Code Civ. Proc. § 647
All of the following are deemed excepted to: the verdict of the jury; the final decision in an action or proceeding; an interlocutory order or decision, finally determining the rights of the parties, or some of them; an order or decision from which an appeal may be taken; an order sustaining or overruling a demurrer, allowing or refusing to allow an amendment to a pleading, striking out or refusing to strike out a pleading or a portion thereof, or refusing a continuance; an order made upon ex parte application, giving an instruction, refusing to give an instruction, or modifying an instruction requested; an order or decision made in the absence of the party or an order granting or denying a nonsuit or a motion to strike out evidence or testimony; a ruling sustaining or overruling an objection to evidence; and any statement or other action of the court in commenting upon or in summarizing the evidence. If the party, at the time when the order, ruling, action or decision is sought or made, or within a reasonable time thereafter, makes known his position thereon, by objection or otherwise, all other orders, rulings, actions or decisions are deemed to have been excepted to.
Ca. Civ. Proc. Code § 647