Interface that should follow a class to implement cache for user data.
Clear all the user information from cache.
Retrieve user information from cache, if available.
ID of the user to retrieve the user information for.
User information or null.
null
Remove user information from cache.
ID of the user to remove the user information for.
Store user information in cache.
ID of the user to store user information for.
The user information to store.
Interface that should follow a class to implement cache for user data.