User.cs

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// 
//  Copyright 2010-2015 Deveel
// 
//    Licensed 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.
//

using System;
using System.Collections.Generic;

using Deveel.Data;
using Deveel.Data.Sql;

namespace Deveel.Data.Security {
    public sealed class User {
        public static readonly User System = new User(SystemName);
        public static readonly User Public = new User(PublicName);

        private Dictionary<ObjectName, Privileges> grantCache;

        internal User(string name) {
            if (String.IsNullOrEmpty(name))
                throw new ArgumentNullException("name");

            Name = name;
        }

        public const string PublicName = "@PUBLIC";

        public const string SystemName = "@SYSTEM";

        public string Name { get; private set; }

        public bool IsSystem {
            get { return Name.Equals(SystemName); }
        }

        public bool IsPublic {
            get { return Name.Equals(PublicName); }
        }
    }
}