ObjectId.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;

namespace Deveel.Data.Store {
    public struct ObjectId : IEquatable<ObjectId> {
        public ObjectId(int storeId, long id)
            : this() {
            if (storeId < 0)
                throw new ArgumentOutOfRangeException("storeId");
            if (id < 0)
                throw new ArgumentOutOfRangeException("id");

            StoreId = storeId;
            Id = id;
        }

        public int StoreId { get; private set; }

        public long Id { get; private set; }

        public override bool Equals(object obj) {
            return Equals((ObjectId)obj);
        }

        public override int GetHashCode() {
            return unchecked ((int)(StoreId*47 ^ Id));
        }

        public bool Equals(ObjectId other) {
            return StoreId == other.StoreId &&
                   Id == other.Id;
        }

        public override string ToString() {
            return String.Format("0x{0:X}:{1:X}", StoreId, Id);
        }
    }
}