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/* Copyright 2012 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/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#pragma once
#include "mongo/base/string_data.h"
#include "mongo/bson/util/builder.h"
namespace mongo {
/*
* BSONBuilderBase contains the common interface between different types of BSON builders.
*
* Currently, this interface is not comprehensive. But we should work toward that goal. If
* you are maintaining the class, please make sure that all Builders behave coherently.
*/
class BSONBuilderBase {
public:
virtual ~BSONBuilderBase() {}
virtual BSONObj obj() = 0;
virtual BufBuilder& subobjStart( const StringData& fieldName ) = 0;
virtual BufBuilder& subarrayStart( const StringData& fieldName ) = 0;
virtual BSONBuilderBase& append( const BSONElement& e) = 0;
virtual BSONBuilderBase& append( const StringData& fieldName , int n ) = 0;
virtual BSONBuilderBase& append( const StringData& fieldName , long long n ) = 0;
virtual BSONBuilderBase& append( const StringData& fieldName , double n ) = 0;
virtual BSONBuilderBase& appendArray( const StringData& fieldName , const BSONObj& subObj ) = 0;
virtual BSONBuilderBase& appendAs( const BSONElement& e , const StringData& filedName ) = 0;
virtual void appendNull( ) = 0;
virtual BSONBuilderBase& operator<<( const BSONElement& e ) = 0;
virtual bool isArray() const = 0;
};
} // namespace mongo
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