mirror of https://gitee.com/bigwinds/arangodb
77 lines
2.3 KiB
C++
77 lines
2.3 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 Michael Hackstein
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_INDEXES_INDEX_ITERATOR_H
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#define ARANGOD_INDEXES_INDEX_ITERATOR_H 1
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#include "Basics/Common.h"
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#include "VocBase/document-collection.h"
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#include "VocBase/vocbase.h"
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namespace arangodb {
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class CollectionNameResolver;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief context for an index iterator
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////////////////////////////////////////////////////////////////////////////////
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struct IndexIteratorContext {
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IndexIteratorContext(TRI_vocbase_t*, CollectionNameResolver*);
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explicit IndexIteratorContext(TRI_vocbase_t*);
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~IndexIteratorContext();
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CollectionNameResolver const* getResolver() const;
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bool isCluster() const;
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int resolveId(char const*, TRI_voc_cid_t&, char const*&) const;
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TRI_vocbase_t* vocbase;
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mutable CollectionNameResolver const* resolver;
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bool ownsResolver;
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};
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////////////////////////////////////////////////////////////////////////////////
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/// @brief a base class to iterate over the index. An iterator is requested
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/// at the index itself
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////////////////////////////////////////////////////////////////////////////////
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class IndexIterator {
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public:
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IndexIterator(IndexIterator const&) = delete;
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IndexIterator& operator=(IndexIterator const&) = delete;
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IndexIterator() {}
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virtual ~IndexIterator();
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virtual TRI_doc_mptr_t* next();
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virtual void reset();
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};
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}
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#endif
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