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arangodb/arangod/Cluster/ClusterEdgeCursor.h

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C++

////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2018 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed under the Apache License, Version 2.0 (the "License");
/// you may not use this file except in compliance with the License.
/// You may obtain a copy of the License at
///
/// http://www.apache.org/licenses/LICENSE-2.0
///
/// Unless required by applicable law or agreed to in writing, software
/// distributed under the License is distributed on an "AS IS" BASIS,
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
/// See the License for the specific language governing permissions and
/// limitations under the License.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Michael Hackstein
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGOD_CLUSTER_CLUSTER_EDGE_CURSOR_H
#define ARANGOD_CLUSTER_CLUSTER_EDGE_CURSOR_H 1
#include "Graph/EdgeCursor.h"
#include "Graph/TraverserOptions.h"
namespace arangodb {
class CollectionNameResolver;
namespace graph {
struct BaseOptions;
class ClusterTraverserCache;
}
namespace traverser {
class Traverser;
class ClusterEdgeCursor : public graph::EdgeCursor {
public:
// Traverser Variant
ClusterEdgeCursor(StringRef vid, uint64_t, graph::BaseOptions*);
// ShortestPath Variant
ClusterEdgeCursor(StringRef vid, bool isBackward, graph::BaseOptions*);
~ClusterEdgeCursor() {}
bool next(std::function<void(graph::EdgeDocumentToken&&,
arangodb::velocypack::Slice, size_t)>
callback) override;
void readAll(std::function<void(graph::EdgeDocumentToken&&,
arangodb::velocypack::Slice, size_t)>
callback) override;
private:
std::vector<arangodb::velocypack::Slice> _edgeList;
size_t _position;
CollectionNameResolver const* _resolver;
arangodb::graph::BaseOptions* _opts;
arangodb::graph::ClusterTraverserCache* _cache;
};
}
}
#endif