protected void TryClearCach(string exe)
{
if (Instance == null)
{
return;
}
long id = Convert.ToInt64(Instance.Eval(keyName));
string cachKey;
if (CachResult(out cachKey))
{
var list = (List <T>)MemCach.GetCach(cachKey);
if (list != null && list.Count > 0)
{
this._selSql = string.Empty;
var oldorderbyList = orderByList;
var oldselPara = selPara;
orderByList = new List <DBOrderby>();
var obj = LockHerper.GetLocker("loadall_" + this.tabName);
try
{
switch (exe)
{
case "add":
{
var t = this.WhereEq(keyName, id).ExecuteEntity();
if (t != null)
{
lock (obj)
{
list.Add(t);
}
}
break;
}
case "del":
{
var t = list.Find(p => Convert.ToInt64(p.Eval(keyName)) == id);
if (t != null)
{
lock (obj)
{
list.Remove(t);
}
}
break;
}
case "update":
{
var t = list.Find(p => Convert.ToInt64(p.Eval(keyName)) == id);
var newt = this.WhereEq(keyName, id).ExecuteEntity();
if (t != null)
{
lock (obj)
{
t = newt;
}
}
else
{
lock (obj)
{
list.Add(newt);
}
}
break;
}
}
}
finally
{
orderByList = oldorderbyList;
selPara = oldselPara;
_selSql = string.Empty;
}
}
//MemCach.RemoveCachItem(cachKey);
}
}
public List <T> ExecuteList()
{
string cachKey;
bool cach = CachResult(out cachKey);
if (cach)
{
object o = MemCach.GetCach(cachKey);
if (o != null)
{
return((List <T>)o);
}
else
{
var obj = LockHerper.GetLocker("loadall_" + this.tabName);
lock (obj)
{
o = MemCach.GetCach(cachKey);
if (o != null)
{
return((List <T>)o);
}
var alllist = LoadAll();
MemCach.AddCach(cachKey, alllist, 1000);
return(alllist);
}
}
}
List <T> result = new List <T>();
Database DB = DatabaseFactory.CreateDatabase(database);
StringBuilder sb = new StringBuilder();
selPara.ForEach(s =>
{
string[] sus = s.First.Split('$');
if (s.Second.Trim().Equals("in"))
{
sb.AppendFormat(" And {0}{1}({2})", sus[0], s.Second, s.Thrid);
}
else
{
sb.AppendFormat(" And {0}{1}@{0}{2}", sus[0], s.Second, (sus.Length > 1 ? sus[1] : ""));
}
});
if (orderByList != null && orderByList.Count > 0)
{
sb.AppendLine(" order by ");
foreach (var orderby in orderByList)
{
sb.AppendFormat("{0} {1},", orderby.OrderbyColumnName, orderby.OrderbyDirection.ToString());
}
sb.Remove(sb.Length - 1, 1);
}
DbCommand cmd = DB.GetSqlStringCommand(string.Format(SelSql, sb.ToString()));
selPara.ForEach(s =>
{
if (s.Second.Trim().Equals("in"))
{
return;
}
DbParameter para = cmd.CreateParameter();
para.DbType = GetDbType(s.Thrid.GetType());
string[] sus = s.First.Split('$');
para.ParameterName = "@" + sus[0] + (sus.Length > 1 ? sus[1] : "");
para.Value = s.Thrid;
cmd.Parameters.Add(para);
});
var ds = DB.ExecuteDataSet(cmd);
if (ds.Tables.Count > 0)
{
Action <T, object>[] funs = null;
var table0 = ds.Tables[0];
for (int i = 0; i < table0.Rows.Count; i++)
{
result.Add(ParseDataRow(table0.Rows[i], ref funs));
}
//result = table0.AsEnumerable().Select(p => ParseDataRow(p,ref funs)).ToList();
}
////这里可以优化下，采用断线对象
//using (IDataReader dr = DB.ExecuteReader(cmd))
//{
// List<string> cols = null;
// while (dr.Read())
// {
// T t = ParseDataReader(dr,ref cols);
// result.Add(t);
// }
//}
return(result);
}
