product_element_vector_provider_builder.h

#ifndef PROJECTS_DPG_PRODUCT_ELEMENT_VECTOR_PROVIDER_BUILDER
#define PROJECTS_DPG_PRODUCT_ELEMENT_VECTOR_PROVIDER_BUILDER
 
#include "dpg.h"
#include "loc_comp_dpg.h"
#include "product_element_vector_provider.h"
 
namespace projects::dpg {
 
template <typename SCALAR>
class ProductElementVectorProviderBuilder {
 public:
  ProductElementVectorProviderBuilder(
      const ProductElementVectorProviderBuilder&) = delete;
  ProductElementVectorProviderBuilder(
      ProductElementVectorProviderBuilder&&) noexcept = delete;
  ProductElementVectorProviderBuilder& operator=(
      const ProductElementVectorProviderBuilder&) = delete;
  ProductElementVectorProviderBuilder& operator=(
      ProductElementVectorProviderBuilder&&) = delete;
 
  explicit ProductElementVectorProviderBuilder(
      std::shared_ptr<ProductUniformFESpace<SCALAR>> fe_space_test)
      : fe_space_test_(std::move(fe_space_test)) {}
 
  template <typename FUNCTOR>
  ProductElementVectorProviderBuilder& AddLoadElementVectorProvider(
      size_type test_component, FUNCTOR f);
 
  std::shared_ptr<ProductElementVectorProvider<SCALAR>> Build();
 
  ~ProductElementVectorProviderBuilder() = default;
 
 private:
  std::shared_ptr<ProductUniformFESpace<SCALAR>> fe_space_test_;
  std::vector<std::shared_ptr<SubElementVectorProvider<SCALAR>>> subproviders_;
};
 
template <typename SCALAR>
template <typename FUNCTOR>
ProductElementVectorProviderBuilder<SCALAR>&
ProductElementVectorProviderBuilder<SCALAR>::AddLoadElementVectorProvider(
    size_type test_component, FUNCTOR f) {
  subproviders_.push_back(
      std::make_shared<LoadElementVectorProvider<SCALAR, FUNCTOR>>(
          fe_space_test_, test_component, f));
  return *this;
}
 
template <typename SCALAR>
std::shared_ptr<ProductElementVectorProvider<SCALAR>>
ProductElementVectorProviderBuilder<SCALAR>::Build() {
  auto provider = std::make_shared<ProductElementVectorProvider<SCALAR>>(
      fe_space_test_, subproviders_);
 
  // clear supplied information
  subproviders_ = {};
  return provider;
}
 
}  // namespace projects::dpg
 
#endif  // PROJECTS_DPG_PRODUCT_ELEMENT_VECTOR_PROVIDER_BUILDER