public AlbumRepositoryByArtistIdCache(IMetadataRepository metadataRepository, Guid userId, Guid artistId, bool populate)
        {
            var repositoryDelegate = new AlbumRepositoryByArtistIdDelegate(userId, artistId, populate);

            repositoryDelegate.Method = repositoryDelegate.CreateMethod(metadataRepository);
            RepositoryDelegate        = repositoryDelegate;
        }
 private bool Equals(AlbumRepositoryByArtistIdDelegate item)
 {
     return(item != null && this == item);
 }