text: ////////////////////////////////////////////////////////////////////////////////
  /// DISCLAIMER
  ///
  /// Copyright 2014-2016 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 Jan Steemann
  ////////////////////////////////////////////////////////////////////////////////
  
  #ifndef ARANGOD_INDEXES_INDEX_LOOKUP_CONTEXT_H
  #define ARANGOD_INDEXES_INDEX_LOOKUP_CONTEXT_H 1
  
  #include "Basics/Common.h"
  #include "StorageEngine/DocumentIdentifierToken.h"
  #include "VocBase/vocbase.h"
  
  namespace arangodb {
  class LogicalCollection;
  class ManagedDocumentResult;
  
  namespace transaction {
  class Methods;
  }
  
  class IndexLookupContext {
   public:
    IndexLookupContext() = delete;
    IndexLookupContext(transaction::Methods* trx, LogicalCollection* collection, ManagedDocumentResult* result, size_t numFields);
    ~IndexLookupContext() {}
  
    uint8_t const* lookup(DocumentIdentifierToken token);
  
    ManagedDocumentResult* result() { return _result; }
  
    inline size_t numFields() const { return _numFields; }
  
   private:
    transaction::Methods* _trx;
    LogicalCollection* _collection;
    ManagedDocumentResult* _result;
    size_t const _numFields;
  };
  
  }
  
  #endif
  