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hedera/sql/sql-dml.c

119 lines
3.1 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/>.
*/
#include "sql-dml.h"
#include "sql-holder.h"
/**
* SECTION: sql-dml
* @Short_description: parent class of data manipulation statements.
* @Title: SqlDml
*
* The #SqlDml is the base class for all SQL statements that manipulate data.
**/
G_DEFINE_ABSTRACT_TYPE (SqlDml, sql_dml, SQL_TYPE_STMT);
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Public
void sql_dml_set_where (SqlDml * obj, SqlObject * where)
{
g_return_if_fail (SQL_IS_DML (obj));
g_return_if_fail (SQL_IS_EXPR (where) || SQL_IS_HOLDER (where) || !where);
sql_object_remove (obj, obj->where);
obj->where = sql_object_add (obj, where);
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Properties
enum
{
PROP_TARGETS = 1
,PROP_WHERE
};
static void sql_dml_set_property (SqlDml * obj, guint id,
const GValue * value, GParamSpec * pspec)
{
switch (id)
{
case PROP_TARGETS:
sql_object_remove (obj, obj->targets);
obj->targets = sql_object_add (obj, g_value_get_object (value));
break;
case PROP_WHERE:
sql_dml_set_where (obj, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
}
}
static void sql_dml_get_property (SqlDml * obj, guint id,
GValue * value, GParamSpec * pspec)
{
switch (id)
{
case PROP_TARGETS:
g_value_set_object (value, obj->targets);
break;
case PROP_WHERE:
g_value_set_object (value, obj->where);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (obj, id, pspec);
}
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
static void sql_dml_init (SqlDml * obj)
{
obj->targets = NULL;
obj->where = NULL;
}
static void sql_dml_finalize (SqlDml * obj)
{
sql_object_remove (obj, obj->targets);
sql_object_remove (obj, obj->where);
G_OBJECT_CLASS (sql_dml_parent_class)->finalize (G_OBJECT (obj));
}
static void sql_dml_class_init (SqlDmlClass * klass)
{
GObjectClass * k = G_OBJECT_CLASS (klass);
k->finalize = (GObjectFinalizeFunc) sql_dml_finalize;
k->set_property = (GObjectSetPropertyFunc) sql_dml_set_property;
k->get_property = (GObjectGetPropertyFunc) sql_dml_get_property;
g_object_class_install_property (k, PROP_TARGETS,
sql_param_list ("targets"
,_("Targets")
,_("A list of targets")
,SQL_TYPE_TARGET
,G_PARAM_READWRITE | G_PARAM_CONSTRUCT
));
g_object_class_install_property (k, PROP_WHERE,
sql_param_object ("where"
,_("Where")
,_("The WHERE section of an statement")
,SQL_TYPE_EXPR
,G_PARAM_READWRITE
));
}