Do you have any reason to use getter methods? Do they do anything interesting?
...Or are you just using them to expose internal data without actually making the fields themselves public (poor man's encapsulation)?
If the former, then yes by all means use them here as well! If the latter, then it doesn't matter - you might want to use them anyway, just in case you ever give them a real purpose, but it won't make one bit of difference otherwise.