Permission.java

/*
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 */

package org.apache.cassandra.auth;

import java.util.EnumSet;

/**
 * An enum encapsulating the set of possible permissions that an authenticated user can have for a resource.
 *
 * IAuthority implementations may encode permissions using ordinals, so the Enum order must never change.
 */
public enum Permission
{
    READ,
    WRITE;

    public static final EnumSet<Permission> ALL = EnumSet.allOf(Permission.class);
    public static final EnumSet<Permission> NONE = EnumSet.noneOf(Permission.class);
}