hedera/db/db-model-holder.c

/*
 * Copyright (C) 2013 - 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 "db-model-holder.h"

/**
 * SECTION: db-model-holder
 * @Short_description: interface for objects that use a model
 * @Title: DbModelHolder
 * @See_also: #DbModel
 * 
 * This interface should be implemented from any class that uses a #DbModel as
 * data source. This interface offers a #DbModel as a virtual property that has
 * to be overwritten by the classes implementing it, as well as the
 * db_model_holder_get_model() and db_model_holder_set_model() methods.
 **/

G_DEFINE_INTERFACE (DbModelHolder, db_model_holder, G_TYPE_INVALID);

/**
 * db_model_holder_get_model:
 * @obj: a #DbModelHolder
 *
 * Gets the model used by holder.
 *
 * Return value:(transfer none): the #DbModel
 **/
DbModel * db_model_holder_get_model (DbModelHolder * obj)
{
	g_return_val_if_fail (DB_IS_MODEL_HOLDER (obj), NULL);

	return DB_MODEL_HOLDER_GET_INTERFACE (obj)->get_model (obj);
}

/**
 * db_model_holder_set_model:
 * @obj: a #DbModelHolder
 * @model:(allow-none): the #DbModel
 *
 * Sets the model used by holder. If @model is NULL, then it will unset the
 * model.
 **/
void db_model_holder_set_model (DbModelHolder * obj, DbModel * model)
{
	g_return_if_fail (DB_IS_MODEL_HOLDER (obj));
	g_return_if_fail (DB_IS_MODEL (obj));

	DB_MODEL_HOLDER_GET_INTERFACE (obj)->set_model (obj, model);
}

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

static void db_model_holder_default_init (DbModelHolderInterface * iface)
{
	g_object_interface_install_property (iface,
		g_param_spec_object ("model"
			,_("Model")
			,_("The model used by the holder")
			,DB_TYPE_MODEL
			,G_PARAM_READWRITE
	));
}