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             VariableCacheController.h
        
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      #ifndef SCIQLOP_VARIABLECACHECONTROLLER_H

      #define SCIQLOP_VARIABLECACHECONTROLLER_H

      #include "CoreGlobal.h"

      #include <QLoggingCategory>

      #include <QObject>

      #include <Data/SqpRange.h>

      #include <QLoggingCategory>

      #include <Common/spimpl.h>

      Q_DECLARE_LOGGING_CATEGORY(LOG_VariableCacheController)

      class Variable;

      /// This class aims to store in the cache all of the dateTime already requested to the variable.

      class SCIQLOP_CORE_EXPORT VariableCacheController : public QObject {

          Q_OBJECT

      public:

          explicit VariableCacheController(QObject *parent = 0);

          void addDateTime(std::shared_ptr<Variable> variable, const SqpRange &dateTime);

          /// Clears cache concerning a variable

          void clear(std::shared_ptr<Variable> variable) noexcept;

          /// Return all of the SqpDataTime part of the dateTime whose are not in the cache

          QVector<SqpRange> provideNotInCacheDateTimeList(std::shared_ptr<Variable> variable,

                                                          const SqpRange &dateTime);

          QVector<SqpRange> dateCacheList(std::shared_ptr<Variable> variable) const noexcept;

          void displayCache(std::shared_ptr<Variable> variable) const;

      private:

          class VariableCacheControllerPrivate;

          spimpl::unique_impl_ptr<VariableCacheControllerPrivate> impl;

      };

      #endif // SCIQLOP_VARIABLECACHECONTROLLER_H

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				#ifndef SCIQLOP_VARIABLECACHECONTROLLER_H
				#define SCIQLOP_VARIABLECACHECONTROLLER_H

				#include "CoreGlobal.h"

				#include <QLoggingCategory>
				#include <QObject>

				#include <Data/SqpRange.h>

				#include <QLoggingCategory>

				#include <Common/spimpl.h>

				Q_DECLARE_LOGGING_CATEGORY(LOG_VariableCacheController)

				class Variable;

				/// This class aims to store in the cache all of the dateTime already requested to the variable.
				class SCIQLOP_CORE_EXPORT VariableCacheController : public QObject {
				Q_OBJECT
				public:
				explicit VariableCacheController(QObject *parent = 0);


				void addDateTime(std::shared_ptr<Variable> variable, const SqpRange &dateTime);

				/// Clears cache concerning a variable
				void clear(std::shared_ptr<Variable> variable) noexcept;

				/// Return all of the SqpDataTime part of the dateTime whose are not in the cache
				QVector<SqpRange> provideNotInCacheDateTimeList(std::shared_ptr<Variable> variable,
				const SqpRange &dateTime);


				QVector<SqpRange> dateCacheList(std::shared_ptr<Variable> variable) const noexcept;

				void displayCache(std::shared_ptr<Variable> variable) const;

				private:
				class VariableCacheControllerPrivate;
				spimpl::unique_impl_ptr<VariableCacheControllerPrivate> impl;
				};

				#endif // SCIQLOP_VARIABLECACHECONTROLLER_H