/// <summary>
/// 数据访问对象[基本方法]
/// 按指定的类型
/// </summary>
/// <returns></returns>
protected AbsDBExtend GetDBExtend()
{
AbsDBExtend db = null;
string contextName = GetType().Name;//同一线程调用只创建一次
var _useCRLContext = CallContext.GetData <bool>(Base.UseCRLContextFlagName);
if (_useCRLContext)//对于数据库事务,只创建一个上下文
{
//todo 由于内置缓存问题,参数不能一直变化,不然生成重复缓存和重复存储过程
contextName = Base.CRLContextName;
db = CallContext.GetData <AbsDBExtend>(contextName);
if (db != null)
{
return(db);
}
}
var dbContext2 = GetDbContext();
if (_useCRLContext)//使用CRLContext,需由CRLContext来关闭数据连接
{
dbContext2.DBHelper.AutoCloseConn = false;
}
db = DBExtendFactory.CreateDBExtend(dbContext2);
if (dbLocation.ShardingDataBase == null)
{
db.OnUpdateNotifyCacheServer = OnUpdateNotifyCacheServer;
}
if (_useCRLContext)
{
CallContext.SetData(contextName, db);
}
//占用内存..
var allList = Base.GetCallDBContext();
allList.Add(contextName);
return(db);
}
/// <summary>
/// 数据访问对象[基本方法]
/// 按指定的类型
/// </summary>
/// <returns></returns>
protected AbsDBExtend GetDBExtend(bool cache = true)
{
AbsDBExtend db = null;
string contextName = "DBExtend." + GetType().Name;//同一线程调用只创建一次
var _useCRLContext = CallContext.GetData <bool>(Base.UseCRLContextFlagName);
if (_useCRLContext)//对于数据库事务,只创建一个上下文
{
contextName = Base.CRLContextName;
}
db = CallContext.GetData <AbsDBExtend>(contextName);
if (db != null)
{
return(db);
}
var dbContext2 = GetDbContext();
if (_useCRLContext)//使用CRLContext,需由CRLContext来关闭数据连接
{
dbContext2.DBHelper.AutoCloseConn = false;
}
db = DBExtendFactory.CreateDBExtend(dbContext2);
if (dbLocation.ShardingDataBase == null)
{
db.OnUpdateNotifyCacheServer = OnUpdateNotifyCacheServer;
}
if (cache)
{
var allKey = "AllDBExtend";
var allList = Base.GetCallDBContext();
CallContext.SetData(contextName, db);
allList.Add(contextName);
CallContext.SetData(allKey, allList);
}
return(db);
}
/// <summary>
/// 手动设置数据库定位数据
/// 用以在GetDbAccess手动判断
/// </summary>
/// <param name="obj"></param>
public void SetDbLocationTag(object obj)
{
CallContext.SetData("SetDbLocationTag", obj);
dbLocation.TagData = obj;
}
