Terme_Source_DG_base.h

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#ifndef Terme_Source_DG_base_included
#define Terme_Source_DG_base_included
 
#include <Iterateur_Source_base.h>
#include <Source_base.h>
 
/**
 * @brief Abstract base class for all DG source terms.
 *
 * This class provides the minimal common infrastructure for source terms in the DG
 * framework. It owns an iterator (iter_) of type Iterateur_Source_base which encapsulates
 * the element-wise loop and delegates the actual source evaluation to a concrete
 * Evaluateur_Source. The iterator pattern allows the assembly strategy (e.g., looping
 * over elements) to be reused across different source term types.
 *
 * The interface_blocs mechanism is always active (has_interface_blocs() returns 1):
 *  - dimensionner_blocs() is a no-op since source terms add only RHS contributions
 *    (no matrix coupling).
 *  - ajouter_blocs() delegates to iter_->ajouter(secmem), which loops over elements
 *    and accumulates the evaluator output into the right-hand side.
 *
 * Derived classes must supply a concrete Iterateur_Source_base at construction time
 * and typically override associer_domaines() and associer_pb() to wire up the
 * evaluator with the domain geometry and physical fields.
 *
 * @sa Terme_Puissance_Thermique_DG_base, Terme_Source_Qdm_Elem_DG, Source_base
 */
class Terme_Source_DG_base : public Source_base
{
  Declare_base(Terme_Source_DG_base);
public:
  Terme_Source_DG_base(const Iterateur_Source_base& iter_base) { iter_ = iter_base; }
 
  int has_interface_blocs() const override { return 1; }
  void dimensionner_blocs(matrices_t matrices, const tabs_t& semi_impl = {}) const override { }; //nothing to size
  void ajouter_blocs(matrices_t matrices, DoubleTab& secmem, const tabs_t& semi_impl = {}) const override { iter_->ajouter(secmem); }
  void completer() override;
 
protected:
  OWN_PTR(Iterateur_Source_base) iter_;
};
 
#endif /* Terme_Source_DG_base_included */