diff --git a/include/osg/VertexArrayState b/include/osg/VertexArrayState
index cfd8dae86..ce5956315 100644
--- a/include/osg/VertexArrayState
+++ b/include/osg/VertexArrayState
@@ -34,6 +34,8 @@ public:
                 modifiedCount(0xffffffff),
                 active(false) {}
 
+            virtual const char* className() const = 0; // { return "ArrayDispatch"; }
+
             virtual void enable_and_dispatch(osg::State& /*state*/, const osg::Array* /*new_array*/) {} // = 0;
 
             virtual void enable_and_dispatch(osg::State& /*state*/, const osg::Array* /*new_array*/, const osg::GLBufferObject* /*vbo*/) {} // = 0;
diff --git a/src/osg/VertexArrayState.cpp b/src/osg/VertexArrayState.cpp
index 9f474fc0f..1095e11f4 100644
--- a/src/osg/VertexArrayState.cpp
+++ b/src/osg/VertexArrayState.cpp
@@ -118,6 +118,8 @@ struct VertexArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     VertexArrayDispatch() {}
 
+    virtual const char* className() const { return "VertexArrayDispatch"; }
+
     virtual void enable_and_dispatch(osg::State&, const osg::Array* new_array)
     {
         VAS_NOTICE<<"    VertexArrayDispatch::enable_and_dispatch("<<new_array->getNumElements()<<")"<<std::endl;
@@ -171,6 +173,8 @@ struct ColorArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     ColorArrayDispatch() {}
 
+    virtual const char* className() const { return "ColorArrayDispatch"; }
+
     virtual void enable_and_dispatch(osg::State&, const osg::Array* new_array)
     {
         VAS_NOTICE<<"    ColorArrayDispatch::enable_and_dispatch("<<new_array->getNumElements()<<")"<<std::endl;
@@ -225,6 +229,8 @@ struct NormalArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     NormalArrayDispatch() {}
 
+    virtual const char* className() const { return "NormalArrayDispatch"; }
+
     virtual void enable_and_dispatch(osg::State&, const osg::Array* new_array)
     {
         VAS_NOTICE<<"    NormalArrayDispatch::enable_and_dispatch("<<new_array->getNumElements()<<")"<<std::endl;
@@ -286,6 +292,8 @@ struct SecondaryColorArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     SecondaryColorArrayDispatch() {}
 
+    virtual const char* className() const { return "SecondaryColorArrayDispatch"; }
+
     virtual void enable_and_dispatch(osg::State& state, const osg::Array* new_array)
     {
         glEnableClientState(GL_SECONDARY_COLOR_ARRAY);
@@ -331,6 +339,8 @@ struct FogCoordArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     FogCoordArrayDispatch() {}
 
+    virtual const char* className() const { return "FogCoordArrayDispatch"; }
+
     virtual void enable_and_dispatch(osg::State& state, const osg::Array* new_array)
     {
         glEnableClientState(GL_FOG_COORDINATE_ARRAY);
@@ -367,6 +377,8 @@ struct TexCoordArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     TexCoordArrayDispatch(unsigned int in_unit) : unit(in_unit) {}
 
+    virtual const char* className() const { return "TexCoordArrayDispatch"; }
+
     virtual void enable_and_dispatch(osg::State& state, const osg::Array* new_array)
     {
         VAS_NOTICE<<"    TexCoordArrayDispatch::enable_and_dispatch("<<new_array->getNumElements()<<") unit="<<unit<<std::endl;
@@ -436,6 +448,8 @@ struct VertexAttribArrayDispatch : public VertexArrayState::ArrayDispatch
 {
     VertexAttribArrayDispatch(unsigned int in_unit) : unit(in_unit) {}
 
+    virtual const char* className() const { return "VertexAttribArrayDispatch"; }
+
     inline void callVertexAttribPointer(GLExtensions* ext, const osg::Array* new_array, const GLvoid * ptr)
     {
         if (new_array->getPreserveDataType())