Make static methods for instance handling private in derived classes.

DRAMSys/library/src/common/jsonAddressDecoder.h

@@ -65,6 +65,9 @@ private:
     vector<pair<unsigned, unsigned>>
                                   m_vColumnBits;     // This container stores for each column bit a pair which consists of "First/Number of the column bit" and "Second/Number of the address bit"
 
+    static AddressDecoder &getInstance();
+    static void createInstance(Type t);
+
 public:
     virtual void setConfiguration(std::string url);
 

DRAMSys/library/src/common/xmlAddressdecoder.h

@@ -59,6 +59,9 @@ private:
 
     tinyxml2::XMLElement *addressmapping;
 
+    static AddressDecoder &getInstance();
+    static void createInstance(Type t);
+
 public:
     virtual DecodedAddress decodeAddress(sc_dt::uint64 addr);
     virtual sc_dt::uint64 encodeAddress(DecodedAddress n);