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 * All rights reserved. 
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 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met: 
 * 
 * *   Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer. 
 * *   Redistributions in binary form must reproduce the above 
 *     copyright notice, this list of conditions and the 
 *     following disclaimer in the documentation and/or other 
 *     materials provided with the distribution. 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
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 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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using System.Collections;

namespace XenAdmin.Wizards.GenericPages
{
    public interface IStorageResource
    {
        string DiskLabel { get; }
        object Tag { get; }
        bool SRTypeInvalid { get; }
        ulong RequiredDiskCapacity { get; }
        bool CanCalculateDiskCapacity { get; }
    }

    public abstract class StorageResourceContainer : IEnumerable
    {
        public abstract IStorageResource Next();
        public abstract bool IsNext { get; }

        public IEnumerator GetEnumerator()
        {
            while (IsNext)
            {
                yield return Next();
            }

            yield break;
        }
    }
}