{
case OperatorTransitionModel.XOR_SPLIT_TYPE:
modElement = new XORSplitOperatorTransitionModel(map);
break;
case OperatorTransitionModel.XOR_JOIN_TYPE:
modElement = new XORJoinOperatorTransitionModel(map);
break;
case OperatorTransitionModel.XOR_SPLITJOIN_TYPE:
modElement = new XORSplitJoinOperatorTransitionModel(map);
break;
case OperatorTransitionModel.AND_SPLIT_TYPE: