netty的UnPooled ByteBuf是否需要引用计数？(Do netty's UnPooled ByteBuf need Reference counted?)

 你可以采取这种方法： 
 
public class Song
{
    public int Id { get; set; }

    public string ArtistName { get; set; }

    public virtual IList<Similarity> SimilaritiesWhereOriginal { get; set; }

    public virtual IList<Similarity> SimilaritiesWhereSimilar { get; set; } 
}

public class Similarity
{
    public int Id { get; set; }

    public int OriginalId { get; set; }
    public virtual Song Original { get; set; }

    public int SimilarId { get; set; }
    public virtual Song Similar { get; set; }
}

public class ApplicationDbContext : DbContext
{
    public DbSet<Song> Songs { get; set; }

    public DbSet<Similarity> Similarities { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Song>().HasMany(x => x.SimilaritiesWhereOriginal).WithRequired(x => x.Original).WillCascadeOnDelete(false);
        modelBuilder.Entity<Song>().HasMany(x => x.SimilaritiesWhereSimilar).WithRequired(x => x.Similar).WillCascadeOnDelete(false);
        base.OnModelCreating(modelBuilder);
    }
}
 
 相似等级显示“原始”歌曲和“相似”歌曲之间的关系。 此类使用您可以从代码访问的您自己的many-2-many关系表替换EF自动生成的表。 

You can take this approach:
 
public class Song
{
    public int Id { get; set; }

    public string ArtistName { get; set; }

    public virtual IList<Similarity> SimilaritiesWhereOriginal { get; set; }

    public virtual IList<Similarity> SimilaritiesWhereSimilar { get; set; } 
}

public class Similarity
{
    public int Id { get; set; }

    public int OriginalId { get; set; }
    public virtual Song Original { get; set; }

    public int SimilarId { get; set; }
    public virtual Song Similar { get; set; }
}

public class ApplicationDbContext : DbContext
{
    public DbSet<Song> Songs { get; set; }

    public DbSet<Similarity> Similarities { get; set; }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Song>().HasMany(x => x.SimilaritiesWhereOriginal).WithRequired(x => x.Original).WillCascadeOnDelete(false);
        modelBuilder.Entity<Song>().HasMany(x => x.SimilaritiesWhereSimilar).WithRequired(x => x.Similar).WillCascadeOnDelete(false);
        base.OnModelCreating(modelBuilder);
    }
}
 
Similarity class shows relationship between "original" song and "similar" song. This class replaces EF auto-generated table with your own many-2-many relationship table that you can access from the code.