treeOperator.h

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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
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#ifndef GUM_TREE_OPERATOR_H
#define GUM_TREE_OPERATOR_H
 
#include <functional>
 
#include <agrum/base/multidim/implementations/multiDimFunctionGraph.h>
 
namespace gum {

  template < typename GUM_SCALAR,
             template < typename > class COMBINEOPERATOR,
             template < typename > class TerminalNodePolicy = ExactTerminalNodePolicy >
  class TreeOperator {
    public:
    // ============================================================================
    // ============================================================================

    TreeOperator(const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* dt1,
                 const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* dt2);

    TreeOperator(const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* dt1,
                 const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* dt2,
                 const HashTable< const DiscreteVariable*, Idx >                givenContext);

    ~TreeOperator();

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

    MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* compute();

 
    private:
    NodeId _xPloreDT1_(NodeId currentNodeId);

    NodeId _xPloreDT2_(NodeId currentNodeId);
 
    NodeId _checkRedundancy_(const DiscreteVariable*, NodeId*);

    const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* _dt1_;
    const MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* _dt2_;

    MultiDimFunctionGraph< GUM_SCALAR, TerminalNodePolicy >* _rd_;

    const COMBINEOPERATOR< GUM_SCALAR > _combine_;
 
    HashTable< const DiscreteVariable*, Idx > _context_;
    NodeId                                    _curDT1Leaf_;
  };
 
#ifndef GUM_NO_EXTERN_TEMPLATE_CLASS
  extern template class TreeOperator< double, std::plus >;
#endif
 
}   // namespace gum
 
#include <agrum/base/multidim/utils/FunctionGraphUtilities/operators/treeOperator_tpl.h>
 
#endif   // GUM_OPERATOR_H