static IExecuteHandler GetHandler()
{
IExecuteHandler handler = new GetValue();
Type type = typeof(T);
if (type.IsValueType || type == typeof(String))
{
handler = new GetValue();
handler.Type = type;
}
else
{
if (type.GetInterface("System.Collections.Generic.IList`1") != null ||
type.Name == "IList`1")
{
Type[] subtype = type.GetGenericArguments();
handler = new GetObjects();
handler.Type = subtype[0];
}
else
{
handler = new GetObject();
handler.Type = type;
}
}
return(handler);
}
public object Execute(IConnectinContext cc, object value, HandlerValueType type)
{
string[] orderby = DBContext.CurrentOrderBy;
Region curegion = DBContext.CurrentRegion;
DBContext.CurrentRegion = null;
DBContext.CurrentOrderBy = null;
switch (type)
{
case HandlerValueType.ValueType:
return(DBContext.Load(Type, value, cc));
case HandlerValueType.PROC:
return(DBContext.ExecProcToObject(Type, cc, value));
case HandlerValueType.SQL:
return(((SQL)value).ListFirst(Type, cc));
case HandlerValueType.EXPRESSION:
return(((Expression)value).ListFirst(Type, cc, orderby));
case HandlerValueType.String:
string str = (string)value;
if (GetValue.IsValueKey(str))
{
return(DBContext.Load(Type, value, cc));
}
else
{
if (GetValue.IsSelectSQL(str))
{
return(new SQL(str).ListFirst(Type, cc));
}
else
{
Expression exp = new Expression(str);
return(exp.ListFirst(Type, cc, orderby));
}
}
}
return(null);
}
public object Execute(IConnectinContext cc, object value, HandlerValueType type)
{
string[] orderby = DBContext.CurrentOrderBy;
Region curegion = DBContext.CurrentRegion;
DBContext.CurrentRegion = null;
DBContext.CurrentOrderBy = null;
switch (type)
{
case HandlerValueType.String:
string str = (string)value;
if (GetValue.IsSelectSQL(str))
{
return(new SQL(str).List(Type, cc, curegion));
}
else
{
Expression exp = new Expression(str);
return(exp.List(Type, cc, curegion, orderby));
}
case HandlerValueType.SQL:
return(((SQL)value).List(Type, cc, curegion));
break;
case HandlerValueType.PROC:
return(cc.ListProc(Type, value));
case HandlerValueType.EXPRESSION:
return(((Expression)value).List(Type, cc, curegion, orderby));
default:
throw new PeanutException("object is not a [SQL,StoredProcedure,Expression]!");
}
}
