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65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/** @file model.h */
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/**
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* Copyright (C) 2008 10gen Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "dbclient.h"
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namespace mongo {
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/** Model is a base class for defining objects which are serializable to the Mongo
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database via the database driver.
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Definition
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Your serializable class should inherit from Model and implement the abstract methods
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below.
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Loading
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To load, first construct an (empty) object. Then call load(). Do not load an object
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more than once.
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*/
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class Model {
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public:
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Model() { }
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virtual ~Model() { }
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virtual const char * getNS() = 0;
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virtual void serialize(BSONObjBuilder& to) = 0;
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virtual void unserialize(BSONObj& from) = 0;
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/** Define this as you see fit if you are using the default conn() implementation. */
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static string defaultServer;
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/** Override this if you need to do fancier connection management than simply using globalConn. */
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virtual string modelServer(){
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uassert( "defaultServer not set" , defaultServer.size() );
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return defaultServer;
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}
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/** Load a single object.
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@return true if successful.
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*/
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bool load(BSONObj& query);
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void save();
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private:
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BSONObj _id;
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};
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} // namespace mongo
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