multiDimDecorator.h

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#ifndef GUM_MULTI_DIM_DECORATOR_H
#define GUM_MULTI_DIM_DECORATOR_H

#include <agrum/agrum.h>

#include <agrum/multidim/implementations/multiDimArray.h>

namespace gum {

  // ===========================================================================
  // ===                         MULTIDIM DECORATOR                          ===
  // ===========================================================================

  template < typename GUM_SCALAR >
  class MultiDimDecorator : public MultiDimContainer< GUM_SCALAR > {
    public:
    // =========================================================================
    // =========================================================================

    MultiDimDecorator(MultiDimImplementation< GUM_SCALAR >* aContent = nullptr,
                      GUM_SCALAR empty_value = (GUM_SCALAR)0);

    MultiDimDecorator(const MultiDimDecorator< GUM_SCALAR >& from);

    MultiDimDecorator< GUM_SCALAR >&
       operator=(const MultiDimDecorator& from) noexcept;

    MultiDimDecorator(MultiDimDecorator< GUM_SCALAR >&&) noexcept;

    MultiDimDecorator< GUM_SCALAR >& operator=(MultiDimDecorator&& from);

    ~MultiDimDecorator();

    // =========================================================================
    // =========================================================================

    virtual Idx nbrDim() const final;

    virtual Size domainSize() const final;

    virtual void add(const DiscreteVariable& v) final;

    virtual void erase(const DiscreteVariable& var) final;

    virtual const Sequence< const DiscreteVariable* >&
                                    variablesSequence() const final;
    virtual const DiscreteVariable& variable(Idx) const final;
    virtual const DiscreteVariable& variable(const std::string& name) const final;

    virtual Idx pos(const DiscreteVariable& var) const final;

    virtual bool contains(const DiscreteVariable& var) const final;

    virtual bool empty() const final;

    // ========================================================================
    // ========================================================================

    virtual bool unregisterSlave(Instantiation& i) final;

    virtual bool registerSlave(Instantiation& i) final;

    virtual void changeNotification(const Instantiation&          i,
                                    const DiscreteVariable* const var,
                                    Idx                           oldval,
                                    Idx                           newval) final;

    virtual void setChangeNotification(const Instantiation& i) final;

    virtual void setFirstNotification(const Instantiation& i) final;

    virtual void setLastNotification(const Instantiation& i) final;

    virtual void setIncNotification(const Instantiation& i) final;

    virtual void setDecNotification(const Instantiation& i) final;

    virtual void notifyChange() const final;

    // =========================================================================
    // =========================================================================

    virtual void set(const Instantiation& i, const GUM_SCALAR& value) const final;

    virtual GUM_SCALAR get(const Instantiation& i) const final;

    virtual void fill(const GUM_SCALAR& d) const final;

    virtual void populate(const std::vector< GUM_SCALAR >& v) const final;

    virtual void apply(std::function< GUM_SCALAR(GUM_SCALAR) > f) const final;

    virtual GUM_SCALAR
       reduce(std::function< GUM_SCALAR(GUM_SCALAR, GUM_SCALAR) > f,
              GUM_SCALAR base) const final;

    virtual MultiDimDecorator< GUM_SCALAR >* newFactory() const = 0;

    virtual void beginMultipleChanges() final;

    virtual void endMultipleChanges() final;

    virtual void endMultipleChanges(const GUM_SCALAR&) final;

    virtual const std::string toString(const Instantiation* i) const;

    virtual const std::string toString() const;

    // =========================================================================
    // =========================================================================


    virtual const MultiDimImplementation< GUM_SCALAR >* content() const final;

    virtual MultiDimImplementation< GUM_SCALAR >* content() final;

    protected:
    virtual void _replace(const DiscreteVariable* x, const DiscreteVariable* y);

    void _swapContent(MultiDimImplementation< GUM_SCALAR >* aContent) const;

    mutable MultiDimImplementation< GUM_SCALAR >* _content;

    GUM_SCALAR& _get(const Instantiation& i) const final;

    mutable GUM_SCALAR _empty_value;
  };

} /* namespace gum */

#include <agrum/multidim/implementations/multiDimDecorator_tpl.h>

#endif /* GUM_MULTI_DIM_DECORATOR_H */