more type-safety in odbc::ODBCDriver

Change-Id: I5db758cd282299ccd15872195a292224827d0c97
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/182468
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Jenkins

connectivity/source/drivers/odbc/ODriver.cxx

@@ -49,7 +49,7 @@ void ODBCDriver::disposing()
 
     for (auto const& connection : m_xConnections)
     {
-        Reference< XComponent > xComp(connection.get(), UNO_QUERY);
+        rtl::Reference< OConnection > xComp(connection);
         if (xComp.is())
             xComp->dispose();
     }
@@ -87,7 +87,7 @@ Reference< XConnection > SAL_CALL ODBCDriver::connect( const OUString& url, cons
 
     rtl::Reference<OConnection> pCon = new OConnection(EnvironmentHandle(), this);
     pCon->Construct(url,info);
-    m_xConnections.push_back(WeakReferenceHelper(*pCon));
+    m_xConnections.push_back(pCon);
 
     return pCon;
 }

connectivity/source/inc/odbc/ODriver.hxx

@@ -29,9 +29,12 @@
 #include <osl/module.h>
 #include <odbc/OFunctions.hxx>
 #include <odbc/OTools.hxx>
+#include <unotools/weakref.hxx>
 
 namespace connectivity::odbc
     {
+        class OConnection;
+
         typedef ::cppu::WeakComponentImplHelper< css::sdbc::XDriver, css::lang::XServiceInfo > ODriver_BASE;
 
         class OOO_DLLPUBLIC_ODBCBASE SAL_NO_VTABLE ODBCDriver : public ODriver_BASE
@@ -39,7 +42,8 @@ namespace connectivity::odbc
         protected:
             ::osl::Mutex                            m_aMutex;
 
-            connectivity::OWeakRefArray             m_xConnections; //  vector containing a list
+            std::vector<unotools::WeakReference<OConnection>>
+                                                    m_xConnections; //  vector containing a list
                                                         //  of all the Connection objects
                                                         //  for this Driver