[xwiki-devs] Permissions on actions

Hi, I'm wondering how xwiki applies permissions to various actions. For example, in looking at the ViewAction and DeleteAction classes I don't see anything that would be applying permissions but clearly some part of the system knows that a /view/ action is different than a /delete/ which is different from a /viewrev/. I created my own action and it 'appears' to be applying the edit permissions. How is this done? What if it was a view type of action? Thanks, Glenn