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hedera/sql/sql-select.h

93 lines
2.4 KiB
C

/*
* Copyright (C) 2012 - Juan Ferrer Toribio
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SQL_SELECT_H
#define SQL_SELECT_H
#include "sql-dml.h"
#define SQL_TYPE_SELECT (sql_select_get_type ())
#define SQL_SELECT(obj) (G_TYPE_CHECK_INSTANCE_CAST (obj, SQL_TYPE_SELECT, SqlSelect))
#define SQL_IS_SELECT(obj) (G_TYPE_CHECK_INSTANCE_TYPE (obj, SQL_TYPE_SELECT))
typedef struct _SqlSelect SqlSelect;
typedef struct _SqlSelectClass SqlSelectClass;
typedef enum
{
SQL_SELECT_NONE
,SQL_SELECT_UNION_ALL
,SQL_SELECT_UNION_ANY
,SQL_SELECT_INTERSECT
,SQL_SELECT_EXCEPT
,SQL_SELECT_COUNT
}
SqlSelectType;
/**
* SqlOrderWay:
* @SQL_ORDER_ASC: ascendent order
* @SQL_ORDER_DESC: descendent order
**/
typedef enum
{
SQL_ORDER_ASC
,SQL_ORDER_DESC
}
SqlOrderWay;
/**
* SqlSelect:
* @expr: (element-type Sql.Expr):
* @group: (element-type Sql.Expr):
* @order: (element-type Sql.Expr):
**/
struct _SqlSelect
{
SqlDml parent;
gboolean distinct;
GSList * expr;
GSList * alias; // List of Sql.SelectAlias
GSList * group;
SqlExpr * having;
GSList * order;
guint limit_offset;
guint limit_count;
SqlSelectType type;
SqlSelect * next;
};
struct _SqlSelectClass
{
/* <private> */
SqlDmlClass parent;
};
GType sql_select_get_type ();
SqlSelect * sql_select_new ();
void sql_select_set_distinct (SqlSelect * obj, gboolean distinct);
void sql_select_add_expr (SqlSelect * obj, SqlExpr * expr);
void sql_select_set_alias (SqlSelect * obj, SqlExpr * expr, const gchar * alias);
void sql_select_add_group (SqlSelect * obj, SqlExpr * expr);
void sql_select_set_having (SqlSelect * obj, SqlExpr * expr);
void sql_select_add_order (SqlSelect * obj, SqlExpr * expr, SqlOrderWay way);
void sql_select_set_limit (SqlSelect * obj, guint count, guint offset);
void sql_select_set_next (SqlSelect * obj, SqlSelect * next, SqlSelectType type);
#endif