public Builder mergeFrom(io.pravega.controller.stream.api.grpc.v1.Controller.TxnState other) { if (other == io.pravega.controller.stream.api.grpc.v1.Controller.TxnState.getDefaultInstance()) return this; if (other.state_ != 0) { setStateValue(other.getStateValue()); } this.mergeUnknownFields(other.unknownFields); onChanged(); return this; }