分析 OQL.NET 所引用到的,用反射找出 类定义.
2008年以前,最精致的ORM实现,没有之一,现在看,依然很美:
http://www.macrobject.com/en/oql.net/oql_demo.htm
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
//Macrobject.NObject.OQL.Select( dbo.sa.UserRole.Id , dbo.sa.UserRole.RoleID )
// .From(dbo.sa.UserRole )
// .Where(dbo.sa.UserRole.Id.In("abc") )
namespace ConsoleApplication1
{
using Macrobject.NObject;
using System.Reflection;
using System.IO;
class Program
{
public const string ThePath = @"E:\DfApp\MyData\ConsoleApplication1\src\";
public static void Main(string[] args)
{
Assembly ab = Assembly.LoadFrom(@"C:\Program Files\Macrobject\OQL.NET\NET 2.0\Macrobject.NObject.dll");
foreach (Type item in ab.GetTypes())
{
if (
item.FullName.Trim().EndsWith(".")
|| item.FullName.Contains("\t")
|| item.FullName.Contains("<")
|| item.FullName.Contains("+")
) continue;
DoWith(item);
}
}
private static void DoWith(Type TheEntityType)
{
if (TheEntityType.FullName == typeof(FieldInfoSet).FullName)
{
int i = 0;
}
string fi = ThePath + TheEntityType.FullName.Replace(".", @"\") + ".cs";
string pa = fi.Substring(0, fi.LastIndexOf("\\"));
if (Directory.Exists(pa) == false)
{
Directory.CreateDirectory(pa);
}
//if (File.Exists(fi) == false)
//{
// File.Create(fi);
//}
StreamWriter sw = new StreamWriter(fi, true);
sw.WriteLine(string.Format(@"namespace {0}
{{
public {1} {2} {3}
{{
"
, TheEntityType.Namespace
, TheEntityType.IsClass ? "class" : TheEntityType.IsEnum ? "enum" : TheEntityType.IsInterface ? "interface" : "struct"
, TheEntityType.Name
, TheEntityType.IsClass ? TheEntityType.BaseType == null ? "" : ":" + TheEntityType.BaseType.FullName : ""
));
int TheItemed = 0;
foreach (PropertyInfo pi in TheEntityType.GetProperties())
{
if (pi.Name == "Item")
{
TheItemed++;
if (TheItemed > 1) continue;
}
sw.WriteLine(string.Format(@"
{5} {4} {0} {1} {{ {2}{3} }}",
pi.PropertyType.FullName
, pi.Name
, "get;"
, pi.CanWrite ? "set;" : TheEntityType.IsInterface ? "set ;" : "private set ;"
, ""
, TheEntityType.IsClass ? "public" : ""
));
}
foreach (MethodInfo mi in TheEntityType.GetMethods())
{
if (TheEntityType.IsEnum) continue;
if (mi.Name.StartsWith("get_")) continue;
if (mi.Name.StartsWith("set_")) continue;
List<string> par = new List<string>();
foreach (ParameterInfo abcd in mi.GetParameters())
{
par.Add(abcd.ParameterType.FullName + " " + abcd.Name);
}
sw.WriteLine(string.Format(@"
{5} {0} {1} {2} ( {3} ){4}",
mi.IsStatic ? "static" : ""
, mi.ReturnType == typeof(void) ? "void" : mi.ReturnType.FullName
, mi.Name
, string.Join(",", par.ToArray())
,
TheEntityType.IsInterface ? ";" :
mi.ReturnType == typeof(void) ? "{ return ; }" :
"{ return " + GetDefaultExpres(mi.ReturnType) + "; }"
, TheEntityType.IsClass ? "public" : ""
));
}
foreach (System.Reflection.FieldInfo filedInfo in TheEntityType.GetFields())
{
if (TheEntityType.IsEnum && filedInfo.Name != "value__")
{
sw.WriteLine(string.Format(@"
{0} ",
filedInfo.Name + ","
));
}
}
sw.WriteLine(@"
}
}
");
sw.Close();
}
/// <summary>
/// 如果Value 为空,返回默认值.
/// </summary>
/// <param name="Value"></param>
/// <param name="type"></param>
/// <returns></returns>
public static string GetDefaultExpres(Type type)
{
string TypeName = type.Name.ToLower();
if (type.IsGenericType)
{
TypeName = type.GetGenericArguments()[0].Name.ToLower();
}
switch (TypeName)
{
case "bool":
case "boolean":
return "false";
case "int":
case "int32":
case "int64":
case "int16":
case "float":
case "decimal":
case "long":
case "byte":
case "double":
return "0";
default:
break;
}
return "null";
}
private static bool Test(string s)
{
if (s.Length > 1) return true;
return false;
}
}
}
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作者:NewSea 出处:http://newsea.cnblogs.com/
QQ,MSN:iamnewsea@hotmail.com 如无特别标记说明,均为NewSea原创,版权私有,翻载必纠。欢迎交流,转载,但要在页面明显位置给出原文连接。谢谢。 |