Advanced - Introduction to business transaction design and development

  The framework source code

using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using OpenAuth.Repository.Core;

namespace OpenAuth.Repository.Interface
{
    /// <summary>
    ///  Work unit interface 
    ///  Please refer to ：http://doc.openauth.net.cn/core/unitwork.html
    /// <para>  Suitable for use in the following situations :</para>
    /// <para>1  Perform multiple table operations in the same transaction </para>
    /// <para>2  Multi table joint query is required </para>
    /// <para> Because the architecture uses EF Access database , For the time being, it is not necessary to consider adopting the traditional Unit Work Registration mechanism </para>
    /// </summary>
    public interface IUnitWork<TDbContext> where TDbContext:DbContext
    {
        /// <summary>
        /// EF By default , Every call SaveChanges() Will execute a separate transaction 
        ///  This interface implementation can execute multiple times in a transaction SaveC