};
vtkStandardNewMacro(vtkMEDReader);
-vtkInformationKeyMacro(vtkMEDReader, META_DATA, DataObjectMetaData);
+
+// vtkInformationKeyMacro(vtkMEDReader, META_DATA, DataObjectMetaData); // Here we need to customize vtkMEDReader::META_DATA method
+// start of overload of vtkInformationKeyMacro
+static vtkInformationDataObjectMetaDataKey *vtkMEDReader_META_DATA=new vtkInformationDataObjectMetaDataKey("META_DATA","vtkMEDReader");
+
+vtkInformationDataObjectMetaDataKey *vtkMEDReader::META_DATA()
+{
+ static const char ZE_KEY[]="vtkMEDReader::META_DATA";
+ vtkInformationDataObjectMetaDataKey *ret(vtkMEDReader_META_DATA);
+ MEDCoupling::GlobalDict *gd(MEDCoupling::GlobalDict::GetInstance());
+ if(!gd->hasKey(ZE_KEY))
+ {// here META_DATA is put on global var to be exchanged with other filters without dependancy of MEDReader. Please do not change ZE_KEY !
+ std::ostringstream oss; oss << ret;
+ gd->setKeyValue(ZE_KEY,oss.str());
+ }
+ return ret;
+}
+// end of overload of vtkInformationKeyMacro
vtkMEDReader::vtkMEDReader():Internal(new vtkMEDReaderInternal(this))
{
