using System;
using System.Data;

namespace Myshipping.Core;

/// <summary>
/// SqlSugar 工作单元配置特性
/// </summary>
[AttributeUsage(AttributeTargets.Method, Inherited = true)]
public class SqlSugarUnitOfWorkAttribute : Attribute
{
    /// <summary>
    /// 构造函数
    /// </summary>
    public SqlSugarUnitOfWorkAttribute()
    {
    }

    /// <summary>
    /// 构造函数
    /// </summary>
    /// <remarks>
    /// <para>支持传入事务隔离级别 <see cref="IsolationLevel"/> 参数值</para>
    /// </remarks>
    /// <param name="isolationLevel">事务隔离级别</param>
    public SqlSugarUnitOfWorkAttribute(IsolationLevel isolationLevel)
    {
        IsolationLevel = isolationLevel;
    }

    /// <summary>
    /// 事务隔离级别
    /// </summary>
    /// <remarks>
    /// <para>默认：<see cref="IsolationLevel.ReadCommitted"/>，参见：<see cref="IsolationLevel"/></para>
    /// <para>说明：当事务A更新某条数据的时候，不容许其他事务来更新该数据，但可以进行读取操作</para>
    /// </remarks>
    public IsolationLevel IsolationLevel { get; set; } = IsolationLevel.ReadCommitted;
}