PRMSlotChain.h

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 *       - Christophe GONZALES(_at_AMU)                                     *
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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
 *       - Christophe GONZALES(_at_AMU)                                     *
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#ifndef GUM_SLOT_CHAIN_H
#define GUM_SLOT_CHAIN_H
 
#include <string>
 
#include <agrum/PRM/elements/PRMAggregate.h>
#include <agrum/PRM/elements/PRMReferenceSlot.h>
 
namespace gum {
  namespace prm {
 
    template < typename GUM_SCALAR >
    class PRMClass;
    template < typename GUM_SCALAR >
    class PRMAttribute;

    // ==========================================================================
    template < typename GUM_SCALAR >
    class PRMSlotChain: public PRMClassElement< GUM_SCALAR > {
      public:
      // ========================================================================
      // ========================================================================

      PRMSlotChain(const std::string&                                name,
                   const Sequence< PRMClassElement< GUM_SCALAR >* >& chain);

      PRMSlotChain(Sequence< PRMClassElement< GUM_SCALAR >* >* chain, const std::string& name);

      PRMSlotChain(const PRMSlotChain< GUM_SCALAR >& source);

      virtual ~PRMSlotChain();

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

      virtual typename PRMClassElement< GUM_SCALAR >::ClassElementType elt_type() const;

      virtual PRMType& type();

      virtual const PRMType& type() const;
 
      // /// This is similar to the following call: this->lastElt().cpf()
      // virtual Tensor<GUM_SCALAR>& cpf();

      virtual const Tensor< GUM_SCALAR >& cpf() const;

      bool isMultiple() const;

      PRMClassElementContainer< GUM_SCALAR >& end();

      const PRMClassElementContainer< GUM_SCALAR >& end() const;

      PRMClassElement< GUM_SCALAR >& lastElt();

      const PRMClassElement< GUM_SCALAR >& lastElt() const;

      Sequence< PRMClassElement< GUM_SCALAR >* >& chain();

      const Sequence< PRMClassElement< GUM_SCALAR >* >& chain() const;

      virtual void addParent(const PRMClassElement< GUM_SCALAR >& elt);

      virtual void addChild(const PRMClassElement< GUM_SCALAR >& elt);

      virtual PRMAttribute< GUM_SCALAR >* getCastDescendant() const;
 
      private:
      PRMSlotChain& operator=(const PRMSlotChain& source);
 
      // ========================================================================
      // ========================================================================

      Sequence< PRMClassElement< GUM_SCALAR >* >* _chain_;

      bool _isMultiple_;

      void _copyLastElt_();

    };
 
 
#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
    extern template class PRMSlotChain< double >;
#endif
 
 
  } /* namespace prm */
}   // namespace gum
 
#include <agrum/PRM/elements/PRMSlotChain_tpl.h>
 
#endif /* GUM_SLOT_CHAIN_H */