mirror of https://gitee.com/bigwinds/arangodb
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Jan Christoph Uhde
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_STORAGE_ENGINE_STORAGE_ENGINE_FEATURE_H
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#define ARANGOD_STORAGE_ENGINE_STORAGE_ENGINE_FEATURE_H 1
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#include "Basics/Common.h"
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#include "ApplicationFeatures/ApplicationFeature.h"
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namespace arangodb {
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// a stub class that "real" storage engines can require as their predecessor
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// it should make sure that the most relevant other application features
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// are already loaded
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class StorageEngineFeature : public application_features::ApplicationFeature {
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public:
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StorageEngineFeature(application_features::ApplicationServer* server)
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: application_features::ApplicationFeature(server, "StorageEngine") {
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setOptional(false);
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// storage engines must not use elevated privileges for files etc
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requiresElevatedPrivileges(false);
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// all the following features need to be present for a concrete storage engine
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startsAfter("CacheManager");
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startsAfter("DatabasePath");
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startsAfter("EngineSelector");
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startsAfter("FileDescriptors");
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startsAfter("Temp");
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startsAfter("TransactionManager");
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}
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};
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}
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#endif
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