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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/>.
*/
#pragma once
#include <string>
namespace mongo {
using std::string;
class BSONObj;
/**
* We use the string representation of index names all over the place, so we declare them all
* once here.
*/
class IndexNames {
public:
static const string GEO_2D;
static const string GEO_HAYSTACK;
static const string GEO_2DSPHERE;
static const string TEXT;
static const string TEXT_INTERNAL;
static const string HASHED;
/**
* True if is a regular (non-plugin) index or uses a plugin that existed before 2.4.
* These plugins are grandfathered in and allowed to exist in DBs with
* PDFILE_MINOR_VERSION_22_AND_OLDER
*/
static bool existedBefore24(const string& name) {
return name.empty()
|| name == IndexNames::GEO_2D
|| name == IndexNames::GEO_HAYSTACK
|| name == IndexNames::HASHED;
}
/**
* Return the first string value in the provided object. For an index key pattern,
* a field with a non-string value indicates a "special" (not straight Btree) index.
*/
static string findPluginName(const BSONObj& keyPattern);
static bool isKnownName(const string& name) {
return name.empty()
|| name == IndexNames::GEO_2D
|| name == IndexNames::GEO_2DSPHERE
|| name == IndexNames::GEO_HAYSTACK
|| name == IndexNames::TEXT
|| name == IndexNames::TEXT_INTERNAL
|| name == IndexNames::HASHED;
}
};
} // namespace mongo
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