Changed the IOOutputFilter constructor to accept a "name" argument. For details see the changes proposed by Vincent Tang:

http://openfoam.cfd-online.com/cgi-bin/forum/show.cgi?126/10405

applications/utilities/postProcessing/sampling/sample/sample.C

@@ -101,8 +101,23 @@ int main(int argc, char *argv[])
     instantList timeDirs = timeSelector::select0(runTime, args);
 #   include "createMesh.H"
 
-    IOsampledSets sSets(mesh, "sampleDict", IOobject::MUST_READ, true);
-    IOsampledSurfaces sSurfs(mesh, "sampleDict", IOobject::MUST_READ, true);
+    IOsampledSets sSets
+    (
+        sampledSets::typeName,
+        mesh,
+        "sampleDict",
+        IOobject::MUST_READ,
+        true
+    );
+
+    IOsampledSurfaces sSurfs
+    (
+        sampledSurfaces::typeName,
+        mesh,
+        "sampleDict",
+        IOobject::MUST_READ,
+        true
+    );
 
     forAll(timeDirs, timeI)
     {

src/sampling/outputFilters/IOOutputFilter/IOOutputFilter.C

@@ -32,6 +32,7 @@ License
 template<class OutputFilter>
 Foam::IOOutputFilter<OutputFilter>::IOOutputFilter
 (
+    const word& outputFilterName,
     const objectRegistry& obr,
     const fileName& dictName,
     const IOobject::readOption rOpt,
@@ -49,7 +50,7 @@ Foam::IOOutputFilter<OutputFilter>::IOOutputFilter
             IOobject::NO_WRITE
         )
     ),
-    OutputFilter(OutputFilter::typeName, obr, *this, readFromFiles)
+    OutputFilter(outputFilterName, obr, *this, readFromFiles)
 {}
 
 

src/sampling/outputFilters/IOOutputFilter/IOOutputFilter.H

@@ -60,7 +60,7 @@ class IOOutputFilter
 {
     // Private Member Functions
 
-        //- Disallow default bitwise copy construct and assignment
+        // Disallow default bitwise copy construct and assignment
         IOOutputFilter(const IOOutputFilter&);
         void operator=(const IOOutputFilter&);
 
@@ -74,6 +74,7 @@ public:
         //  Allow the possibility to load fields from files
         IOOutputFilter
         (
+            const word& outputFilterName,
             const objectRegistry&,
             const fileName& dictName = OutputFilter::typeName() + "Dict",
             const IOobject::readOption rOpt = IOobject::MUST_READ,
@@ -81,9 +82,8 @@ public:
         );
 
 
-    // Destructor
-
-        virtual ~IOOutputFilter();
+    //- Destructor
+    virtual ~IOOutputFilter();
 
 
     // Member Functions

src/sampling/outputFilters/OutputFilterFunctionObject/OutputFilterFunctionObject.C

@@ -78,6 +78,7 @@ bool Foam::OutputFilterFunctionObject<OutputFilter>::start()
             (
                 new IOOutputFilter<OutputFilter>
                 (
+                    name_,
                     time_.lookupObject<objectRegistry>(regionName_),
                     dictName_
                 )