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/**
* Copyright (C) 2013 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/status.h"
#include "mongo/db/geo/s2common.h"
#include "mongo/db/index/btree_access_method_internal.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/jsobj.h"
namespace mongo {
class IndexCursor;
struct S2IndexingParams;
class S2AccessMethod : public BtreeBasedAccessMethod {
public:
using BtreeBasedAccessMethod::_descriptor;
S2AccessMethod(IndexDescriptor* descriptor);
virtual ~S2AccessMethod() { }
virtual Status newCursor(IndexCursor** out);
private:
friend class Geo2dFindNearCmd;
const S2IndexingParams& getParams() const { return _params; }
virtual void getKeys(const BSONObj& obj, BSONObjSet* keys);
// getKeys calls the helper methods below.
void getGeoKeys(const BSONObj& document, const BSONElementSet& elements,
BSONObjSet* out) const;
void getLiteralKeys(const BSONElementSet& elements, BSONObjSet* out) const;
void getLiteralKeysArray(const BSONObj& obj, BSONObjSet* out) const;
void getOneLiteralKey(const BSONElement& elt, BSONObjSet *out) const;
S2IndexingParams _params;
};
} // namespace mongo
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