gets the id of this sso entry . concode_field_sep Principal principal concode_elem_sep Map<String,Session> sessions concode_elem_sep long lastAccessTime concode_elem_sep Logger log concode_elem_sep String realmName concode_elem_sep String id concode_elem_sep String authType concode_elem_sep AtomicLong version concode_elem_sep String username concode_field_sep void removeSession concode_elem_sep long getVersion concode_elem_sep String getAuthType concode_elem_sep long getLastAccessTime concode_elem_sep void expireSessions concode_elem_sep Principal getPrincipal concode_elem_sep boolean isEmpty concode_elem_sep boolean addSession concode_elem_sep void setLastAccessTime concode_elem_sep long incrementAndGetVersion concode_elem_sep String getRealmName concode_elem_sep String getUsername
String function ( ) { return id ; }