fieldMapper: Simplification

The patch-specific mapper interfaces, fvPatchFieldMapper and
pointPatchFieldMapper, have been removed as they did not do anything.
Patch mapping constructors and functions now take a basic fieldMapper
reference.

An fvPatchFieldMapper.H header has been provided to aid backwards
compatability so that existing custom boundary conditions continue to
compile.

applications/utilities/parallelProcessing/decomposePar/fvFieldDecomposer.C

@@ -58,7 +58,7 @@ Foam::fvFieldDecomposer::patchFieldDecomposer::patchFieldDecomposer
 )
 :
     labelList(mag(addressing) - 1),
-    directFvPatchFieldMapper(static_cast<const labelList&>(*this))
+    directFieldMapper(static_cast<const labelList&>(*this))
 {}
 
 

applications/utilities/parallelProcessing/decomposePar/fvFieldDecomposer.H

@@ -40,7 +40,7 @@ SourceFiles
 #include "IOobjectList.H"
 #include "volFields.H"
 #include "surfaceFields.H"
-#include "directFvPatchFieldMapper.H"
+#include "directFieldMapper.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -63,7 +63,7 @@ public:
         class patchFieldDecomposer
         :
             public labelList,
-            public directFvPatchFieldMapper
+            public directFieldMapper
         {
         public:
 

applications/utilities/parallelProcessing/decomposePar/pointFieldDecomposer.C

@@ -35,11 +35,7 @@ Foam::pointFieldDecomposer::patchFieldDecomposer::patchFieldDecomposer
     const labelList& directAddr
 )
 :
-    pointPatchFieldMapperPatchRef
-    (
-        completeMeshPatch,
-        procMeshPatch
-    ),
+    generalFieldMapper(),
     directAddressing_(procMeshPatch.size(), -1),
     hasUnmapped_(false)
 {

applications/utilities/parallelProcessing/decomposePar/pointFieldDecomposer.H

@@ -38,7 +38,7 @@ SourceFiles
 
 #include "pointMesh.H"
 #include "pointFields.H"
-#include "pointPatchFieldMapperPatchRef.H"
+#include "generalFieldMapper.H"
 #include "IOobjectList.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -61,15 +61,17 @@ public:
         //- Point patch field decomposer class
         class patchFieldDecomposer
         :
-            public pointPatchFieldMapperPatchRef
+            public generalFieldMapper
         {
             // Private Data
 
+                //- ...
                 labelList directAddressing_;
 
-                //- Does map contain any unmapped values
+                //- Does map contain any unmapped values?
                 bool hasUnmapped_;
 
+
         public:
 
             // Constructors