Dynamic creation of json model

Hi Friends,

is it possible to create a model dynamically like below?

Here the ConfigLine.ENTITY_NAME is  'MATERIAL' and the Model should be "JMODMATERIAL" later.

var jModName = "JMOD" + ConfigLine.ENTITY_NAME; 

var jModName = new sap.ui.model.json.JSONModel();

oModel.read(entity, null, null, false,

       function(RESP, oResponse) {

      jModName.setData(RESP);

  }, null);

And later:

var jModName = "JMOD" + ConfigLine.ENTITY_NAME;

var tabData =jModName.getData();

But it does not work.

Any help would be appreciated.

Rg. Joerg