xoonips/AL/criteria.h

/*
 * SQL絎?茵?腟???????我??絎?鐚?筝??号?帥???＞散??膊∞??????criteria?????鴻???荐?
 * 
 * $Revision: 1.1 $
 * $Log: criteria.h,v $
 * Revision 1.1  2004/11/24 06:54:21  youi
 * initial version
 *
 * 
 */

#if !defined( CRITERIA_H )
#define CRITERIA_H
typedef int order_t;

class orderby{
private:
    orderby* next;
    char* column;
    int order;
public:
    const static order_t ASC = 0;
    const static order_t DESC = 1;
    
    orderby( const char* column, int order );
    ~orderby( );
    
    const char* getColumn( ) const;
    order_t getOrder( ) const;
};

class criteria{
private:
    int start; //!< ?阪??????紮?茵????/span>
    int rows; //!< ?阪???????0=?≦?狗??)
    orderby** orders; //!< orders???≪?????拷????
    int ordersMax; //!< orders????????紊ч??/span>
    int ordersLen; //!< orders???????????鴻???若?水????/span>
    int indexOfOrders; //!< orders????莎井?紫?????????????潟??/span>
public:
    criteria( );
    ~criteria( );
    
    void setLimit( int start, int rows );
    void addOrderBy( orderby *order );
    void clearAll( );
    
    int getLimitStart( ) const;
    int getLimitRows( ) const;
    
    const orderby* headOrderBy( );
    const orderby* nextOrderBy( );
};

typedef criteria criteria_t;
#endif