I'd like to use the JCR ability of Alfresco, but from the examples I see, they pass in credentials to log the user in. I know there are ways to get plain Alfresco to use Single Sign On functionality like CAS and I was wondering if that extends to the JCR API portion. I'll be using CAS most likely as the mechanism to login to my application which will then use the JCR API to put documents into the repository, but I don't want to save the user's password to log them into the JCR. I notice there's one version of the login function for the Repository class that doesn't take any arguments, would this get me what I need? I'd like the user's id from my login to show up in the history for that item.