Access control at file level

Question for experts... may be obvious for someone ? While read / write access authorizations can easily be provided at folder level, is there a possibility to set authorizations at file level ? This is very necessary for day to day operations...
I could not find how...
Thanks !

I have used SVN before and because I have a larger project which I have frequently changing developers working on I want to define file access on a package or file level. For example giving full access to basic classes, but only allow the reading and committing for special users in some cases. Is there a version control system which would allow that, like GIT, CVS or SVN or is there a work around to do this? I do not have my own Server but I am using Codesion as a hosted service.
Best regards,
Ekaterina Surkova | Forum Moderator
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