hedera/sql/sql-select-order.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/>.
 */

#include "sql-select-order.h"

/**
 * SECTION: sql-select-order
 * @Short_description:
 * @Title: SqlSelectOrder
 **/
G_DEFINE_TYPE (SqlSelectOrder, sql_select_order, SQL_TYPE_OBJECT);

SqlObject * sql_select_order_new ()
{
	return g_object_new (SQL_TYPE_SELECT_ORDER, NULL);
}

//+++++++++++++++++++++++++++++++++++++++++++++++++++ Private

static void sql_select_order_render (SqlSelectOrder * obj, SqlRender * render)
{
	sql_render_add_object (render, obj->expr);

	if (obj->way == SQL_SELECT_ORDER_DESC)
		sql_render_add_token (render, "DESC");
}

//+++++++++++++++++++++++++++++++++++++++++++++++++++ Properties

enum
{
	 PROP_EXPR = 1
	,PROP_WAY
};

static void sql_select_order_set_property (SqlSelectOrder * obj, guint id,
	const GValue * value, GParamSpec * pspec)
{
	switch (id)
	{
		case PROP_EXPR:
			sql_object_remove (obj, obj->expr);
			obj->expr = sql_object_add (obj, g_value_get_object (value));
			break;
		case PROP_WAY:
			obj->way = g_value_get_enum (value);
			break;
		default:		
			G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
	}
}

static void sql_select_order_get_property (SqlSelectOrder * obj, guint id,
	GValue * value, GParamSpec * pspec)
{	
	switch (id)
	{
		case PROP_EXPR:
			g_value_set_object (value, obj->expr);
			break;
		case PROP_WAY:
			 g_value_set_enum (value, obj->way);
			break;
		default:		
			G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
	}
}

//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class

static void sql_select_order_init (SqlSelectOrder * obj)
{
	obj->expr = NULL;
}

static void sql_select_order_finalize (SqlSelectOrder * obj)
{
	sql_object_remove (obj, obj->expr);
	G_OBJECT_CLASS (sql_select_order_parent_class)->finalize (G_OBJECT (obj));
}

static void sql_select_order_class_init (SqlSelectOrderClass * klass)
{
	GObjectClass * k = G_OBJECT_CLASS (klass);
	k->finalize = (GObjectFinalizeFunc) sql_select_order_finalize;
	k->set_property = (GObjectSetPropertyFunc) sql_select_order_set_property;
	k->get_property = (GObjectGetPropertyFunc) sql_select_order_get_property;
	SQL_OBJECT_CLASS (k)->render = (SqlRenderFunc) sql_select_order_render;

	g_object_class_install_property (k, PROP_EXPR,
		sql_param_object ("expr"
			,("Expression")
			,("The expression")
			,SQL_TYPE_EXPR
			,G_PARAM_READWRITE
	));
	g_object_class_install_property (k, PROP_WAY,
		g_param_spec_enum ("way"
			,("Way")
			,("The order way")
			,SQL_TYPE_SELECT_ORDER_WAY
			,SQL_SELECT_ORDER_ASC
			,G_PARAM_READWRITE
	));
}

GType sql_select_order_way_get_type ()
{
	static GType type = 0;

	if (type == 0)
	{
		static const GEnumValue values[] =
		{
			  {SQL_SELECT_ORDER_ASC		,"SQL_SELECT_ORDER_ASC"		,"asc"
			},{SQL_SELECT_ORDER_DESC	,"SQL_SELECT_ORDER_DESC"	,"desc"
			},{0, NULL, NULL}
		};

		type = g_enum_register_static
			(g_intern_static_string ("SqlSelectOrderWay"), values);
	}

	return type;
}