001    package com.nimbusds.oauth2.sdk;
002    
003    
004    /**
005     * Enumeration of OAuth 2.0 roles.
006     *
007     * <p>Related specifications:
008     *
009     * <ul>
010     *     <li>OAuth 2.0 (RFC 6749), section 1.1.
011     * </ul>
012     *
013     * @author Vladimir Dzhuvinov
014     * @version $version$ (2013-01-16)
015     */
016    public enum Role {
017    
018            /**
019             * An entity capable of granting access to a protected resource. When 
020             * the resource owner is a person, it is referred to as an end-user.
021             */
022            RESOURCE_OWNER,
023    
024    
025            /**
026             * The server hosting the protected resources, capable of accepting
027             * and responding to protected resource requests using access tokens.
028             */
029            RESOURCE_SERVER,
030    
031    
032            /**
033             * An application making protected resource requests on behalf of the
034            * resource owner and with its authorization.  The term "client" does
035            * not imply any particular implementation characteristics (e.g.,
036            * whether the application executes on a server, a desktop, or other
037            * devices).
038            */
039            CLIENT,
040    
041    
042            /**
043             * The server issuing access tokens to the client after successfully
044             * authenticating the resource owner and obtaining authorization.
045             */
046            AUTHORIZATION_SERVER
047    }