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// model.h
/**
* Copyright (C) 2008 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "dbclient.h"
/* Model is a base class for defining objects which are serializable to the Mongo
database via the database driver.
*Definition*
Your serializable class should inherit from Model and implement the abstract methods
below.
*Loading*
To load, first construct an (empty) objet. Then call load(). Do not load an object
more than once.
*/
class Model {
public:
Model() { }
virtual ~Model() { }
virtual const char * getNS() = 0;
virtual void serialize(BSONObjBuilder& to) = 0;
virtual void unserialize(BSONObj& from) = 0;
/* Define this as you see fit if you are using the default conn() implementation. */
static DBClientWithCommands *globalConn;
/* Override this if you need to do fancier connection management than simply using globalConn. */
virtual DBClientWithCommands* conn() {
return globalConn;
}
/* true if successful */
bool load(BSONObj& query);
};
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