本文整理汇总了C++中Query::get_operator方法的典型用法代码示例。如果您正苦于以下问题：C++ Query::get_operator方法的具体用法？C++ Query::get_operator怎么用？C++ Query::get_operator使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Query的用法示例。
在下文中一共展示了Query::get_operator方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: send_result_row_to_nqxe
void send_result_row_to_nqxe(
Processor::query_id_t query_id,
Processor::operator_id_t operator_id,
Processor::RowT& row
) {
block_data_t msg[100];
/*
void on_result_row(int type, QueryProcessor::size_type cols, QueryProcessor::RowT& row,
QueryProcessor::query_id_t qid, QueryProcessor::operator_id_t oid) {
*/
typedef Processor::BasicOperator BasicOperator;
Query *q = ian_.get_query(query_id);
if(!q) {
debug_->debug("!q %d", (int)query_id);
return;
}
BasicOperator *op = q->get_operator(operator_id);
if(!op) {
debug_->debug("!op %d", (int)operator_id);
return;
}
int cols = op->projection_info().columns();
if(op->type() == Processor::BOD::AGGREGATE) {
Processor::AggregateT *aggr = (Processor::AggregateT*)op;
//int cols = op-> projection_info().columns();
//cols = aggr->columns_physical();
cols = aggr->columns_logical();
}
int msglen = 1 + 1 + 1 + 1 + 4*cols;
block_data_t chk = 0;
msg[0] = 'R';
msg[1] = 2 + 4 * cols; // # bytes to follow after this one
msg[2] = query_id;
msg[3] = operator_id;
if(op->type() == Processor::BOD::AGGREGATE) {
Processor::AggregateT *aggr = (Processor::AggregateT*)op;
int j = 0; // physical column
for(int i = 0; i< cols; i++, j++) { // logical column
//printf("tach %d", Processor::AggregateT::AD::AGAIN);
if((aggr->aggregation_types()[i] & ~AGAIN) == AggregateT::AD::AVG) {
j++;
}
Value v;
memcpy(&v, &row[j], sizeof(Value));
wiselib::write<Os, block_data_t, Processor::Value>(msg + 4 + 4*i, v);
}
}
else {
for(int i = 0; i< cols; i++) {
Value v;
memcpy(&v, &row[i], sizeof(Value));
wiselib::write<Os, block_data_t, Processor::Value>(msg + 4 + 4*i, v);
}
}
for(int i = 0; i<msglen; i++) { chk ^= msg[i]; }
msg[msglen] = chk;
uart_->write(msglen + 1, (Os::Uart::block_data_t*)msg);
} // send_result_row_to_nqxe()