This fetch command retrieves the catalog group data for a given catalog group and store.
Catalog group id is passed as a parameter in xpath expression and
the store id is retrieved from the BaseContext using ,getStoreId()
method in the CatalogComponentHelper helper classs. This command also checks
if the current user is entitled to see retrieved catalog group data. If current user is entitled,
the Catalog Group data is returned otherwise an empty Show BOD is returned to the client.
Following is the xpath expression used to invoke this command:
Unique ID: valid catalog group id for which data has to be retrieved.