public void process(NodeInsertedChange c) {
OperationWrapperNode from = null;
if (c.getPreviousNode() instanceof OperationWrapper) {
from = getOperationNode(((OperationWrapper) c.getPreviousNode()).getActivity());
}
OperationActivityWrapper inserted = c.getInsertedNode();
if (inserted instanceof OperationWrapper) {
insertOperationNode((OperationWrapper) inserted, from);
} else if (inserted instanceof EmailWrapper) {
insertEmailNode((EmailWrapper) inserted, from);
}