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#ifndef QUERYEXECUTORORDER_H
#define QUERYEXECUTORORDER_H
#include "queryexecutorstep.h"
/**
* @brief Applies sorting to the query.
*
* Sorting is done by enclosing SELECT query with another SELECT
* query, but the outer one uses order defined in this step.
*
* The order is defined by QueryExecutor::setSortOrder().
*/
class QueryExecutorOrder : public QueryExecutorStep
{
Q_OBJECT
public:
bool exec();
private:
/**
* @brief Generates tokens to sort by given column and order.
* @param sortOrder Definition of order to use.
* @return Tokens to append to the SELECT.
*/
TokenList getOrderTokens(const QueryExecutor::SortList& sortOrder);
};
#endif // QUERYEXECUTORORDER_H
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