Rinse salmon slices in hot water, drain and dry. At end of each slice place 5 oysters then roll salmon over them. Arrange rolls on a shallow, greased baking pan. In a saucepan combine wine, stock, parsley, shallots, onion, peppercorns, garlic and cloves. Bring to a boil then simmer until sauce is reduced to half cup. Strain sauce into another pan then add cream or cream sauce and tomato paste. Bring this to a boil then remove from heat. Saut# musroom caps in butter until done then place on each salmon roll. Pour sauce over salmon rolls, sprinkle with grated swiss cheese and broil until cheese melts. Serve immediately.