[PL/SourceTerms] Introduce source term interface.

ProcessLib/SourceTerms/NodalSourceTerm.cpp

@@ -20,7 +20,7 @@ NodalSourceTerm::NodalSourceTerm(
     const int variable_id,
     const int component_id,
     Parameter<double> const& parameter)
-    : _source_term_dof_table(source_term_dof_table),
+    : SourceTerm(source_term_dof_table),
       _bulk_mesh_id(bulk_mesh_id),
       _st_mesh(st_mesh),
       _variable_id(variable_id),

ProcessLib/SourceTerms/NodalSourceTerm.h

@@ -9,12 +9,11 @@
 
 #pragma once
 
-#include "NumLib/DOF/LocalToGlobalIndexMap.h"
-#include "ProcessLib/Parameter/Parameter.h"
+#include "SourceTerm.h"
 
 namespace ProcessLib
 {
-class NodalSourceTerm final
+class NodalSourceTerm final : public SourceTerm
 {
 public:
     explicit NodalSourceTerm(
@@ -23,10 +22,9 @@ public:
         const int variable_id, const int component_id,
         Parameter<double> const& parameter);
 
-    void integrate(const double t, GlobalVector& b) const;
+    void integrate(const double t, GlobalVector& b) const override;
 
 private:
-    NumLib::LocalToGlobalIndexMap const& _source_term_dof_table;
     std::size_t const _bulk_mesh_id;
     MeshLib::Mesh const& _st_mesh;
     int const _variable_id;

ProcessLib/SourceTerms/SourceTerm.h

+/**
+ * \copyright
+ * Copyright (c) 2012-2018, OpenGeoSys Community (http://www.opengeosys.org)
+ *            Distributed under a Modified BSD License.
+ *              See accompanying file LICENSE.txt or
+ *              http://www.opengeosys.org/project/license
+ *
+ */
+
+#pragma once
+
+#include "NumLib/DOF/LocalToGlobalIndexMap.h"
+#include "ProcessLib/Parameter/Parameter.h"
+
+namespace ProcessLib
+{
+class SourceTerm
+{
+public:
+    SourceTerm(const NumLib::LocalToGlobalIndexMap& source_term_dof_table)
+        : _source_term_dof_table(source_term_dof_table)
+    {
+    }
+
+    virtual void integrate(const double t, GlobalVector& b) const = 0;
+
+    virtual ~SourceTerm() = default;
+protected:
+    NumLib::LocalToGlobalIndexMap const& _source_term_dof_table;
+};
+
+}  // namespace ProcessLib