public void doMove(WorkingMemory wm)
	{
...
		FactHandle factHandle = wm.getFactHandle(left);
		left.setSuplId(oldRightSuplId);
		left.setSpmaId(oldRightSpmaId);
		wm.update(factHandle, left);

		factHandle = wm.getFactHandle(right);
		right.setSuplId(oldLeftSuplId);
		right.setSpmaId(oldLeftSpmaId);
		wm.update(factHandle, right);
	}