public static object Fetch(Type objectType, object criteria, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
try
{
RafyEnvironment.ThreadPortalCount++;
object res = null;
//只是不要纯客户端，都直接使用本地访问
if (loc == DataPortalLocation.Local || RafyEnvironment.Location.ConnectDataDirectly)
{
res = FinalDataPortal.Fetch(objectType, criteria);
}
else
{
var proxy = GetDataPortalProxy();
var dpContext = CreateDataPortalContext();
var result = proxy.Fetch(objectType, criteria, dpContext);
res = ReadServerResult(result);
}
return res;
}
finally
{
RafyEnvironment.ThreadPortalCount--;
}
}
/// <summary>
/// 使用门户查询
/// </summary>
/// <param name="objectType"></param>
/// <param name="criteria"></param>
/// <param name="loc">如果一个数据层方法需要在本地执行，应该在把本参数指明为 Local。</param>
/// <returns></returns>
public static object Fetch(Type objectType, object criteria, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
try
{
RafyEnvironment.ThreadPortalCount++;
object res = null;
//只是不要纯客户端，都直接使用本地访问
if (loc == DataPortalLocation.Local || RafyEnvironment.Location.ConnectDataDirectly)
{
res = FinalDataPortal.Fetch(objectType, criteria);
}
else
{
var proxy = GetDataPortalProxy();
var dpContext = CreateDataPortalContext();
var result = proxy.Fetch(objectType, criteria, dpContext);
res = ReadServerResult(result);
}
return(res);
}
finally
{
RafyEnvironment.ThreadPortalCount--;
}
}
/// <summary>
/// Called by the business object's Save() method to
/// insert, update or delete an object in the database.
/// </summary>
/// <param name="obj">A reference to the business object to be updated.</param>
/// <param name="loc">The loc.</param>
/// <returns>
/// A reference to the updated business object.
/// </returns>
/// <remarks>
/// Note that this method returns a reference to the updated business object.
/// If the server-side DataPortal is running remotely, this will be a new and
/// different object from the original, and all object references MUST be updated
/// to use this new object.
/// </remarks>
public static object Update(object obj, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
object res = null;
//只是不要纯客户端，都直接使用本地访问
if (loc == DataPortalLocation.Local || RafyEnvironment.Location.ConnectDataDirectly)
{
/*********************** 代码块解释 *********************************
*
* 由于开发人员平时会使用单机版本开发，而正式部署时，又会选用 C/S 架构。
* 所以需要保证单机版本和 C/S 架构版本的模式是一样的。也就是说，在单机模式下，
* 在通过门户访问时，模拟网络版，clone 出一个新的对象。
* 这样，在底层 Update 更改 obj 时，不会影响上层的实体。
* 而是以返回值的形式把这个被修改的实体返回给上层。
*
* 20120828
* 但是，当在服务端本地调用时，不需要此模拟功能。
* 这是因为在服务端本地调用时（例如服务端本地调用 RF.Save），
* 在开发体验上，数据层和上层使用的实体应该是同一个，数据层的修改应该能够带回到上层，不需要克隆。
*
**********************************************************************/
try
{
RafyEnvironment.ThreadPortalCount++;
//ThreadPortalCount == 1 表示第一次进入数据门户
if (FakeRemoteIfOnClient &&
RafyEnvironment.Location.IsWPFUI && RafyEnvironment.Location.ConnectDataDirectly && RafyEnvironment.ThreadPortalCount == 1)
{
res = ObjectCloner.Clone(obj);
}
else
{
res = obj;
}
FinalDataPortal.Update(res);
}
finally
{
RafyEnvironment.ThreadPortalCount--;
}
}
else
{
var proxy = GetDataPortalProxy();
var dpContext = CreateDataPortalContext();
var result = proxy.Update(obj, dpContext);
res = ReadServerResult(result);
}
return(res);
}
public static object Update(object obj, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
var proxy = GetDataPortalProxy(loc);
var dpContext = new Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
var result = proxy.Update(obj, dpContext);
if (proxy.IsServerRemote) DistributionContext.SetGlobalContext(result.GlobalContext);
return result.ReturnObject;
}
private static IDataPortalProxy GetDataPortalProxy(DataPortalLocation loc)
{
if (loc == DataPortalLocation.Local) return new LocalProxy();
if (_proxyType == null)
{
string proxyTypeName = DistributionContext.DataPortalProxy;
if (proxyTypeName == "Local") return new LocalProxy();
_proxyType = Type.GetType(proxyTypeName, true, true);
}
return Activator.CreateInstance(_proxyType) as IDataPortalProxy;
}
public static object Update(object obj, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
var proxy = GetDataPortalProxy(loc);
var dpContext = new Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
var result = proxy.Update(obj, dpContext);
if (proxy.IsServerRemote)
{
DistributionContext.SetGlobalContext(result.GlobalContext);
}
return(result.ReturnObject);
}
public static object Fetch(Type objectType, object criteria, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
var proxy = GetDataPortalProxy(loc);
var dpContext = new Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
Server.DataPortalResult result = null;
try
{
result = proxy.Fetch(objectType, criteria, dpContext);
}
finally
{
if (proxy.IsServerRemote && result != null) { DistributionContext.SetGlobalContext(result.GlobalContext); }
}
//不能等于 ReturnObject=null
return result.ReturnObject;
}
private static IDataPortalProxy GetDataPortalProxy(DataPortalLocation loc)
{
if (loc == DataPortalLocation.Local)
{
return(new LocalProxy());
}
if (_proxyType == null)
{
string proxyTypeName = DistributionContext.DataPortalProxy;
if (proxyTypeName == "Local")
{
return(new LocalProxy());
}
_proxyType = Type.GetType(proxyTypeName, true, true);
}
return(Activator.CreateInstance(_proxyType) as IDataPortalProxy);
}
/// <summary>
/// 使用门户查询
/// </summary>
/// <param name="objectType"></param>
/// <param name="criteria"></param>
/// <param name="loc">如果一个数据层方法需要在本地执行，应该在把本参数指明为 Local。</param>
/// <returns></returns>
public static object Fetch(Type objectType, object criteria, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
object res = null;
////只是不要纯客户端，都直接使用本地访问
//if (loc == DataPortalLocation.Local || RafyEnvironment.Location.ConnectDataDirectly)
//{
// res = FinalDataPortal.Fetch(objectType, criteria);
//}
//else
//{
var proxy = GetDataPortalProxy();
var dpContext = CreateDataPortalContext();
var result = proxy.Fetch(objectType, criteria, dpContext);
res = ReadServerResult(result);
//}
return(res);
}
public static object Fetch(Type objectType, object criteria, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
var proxy = GetDataPortalProxy(loc);
var dpContext = new Server.DataPortalContext(GetPrincipal(), proxy.IsServerRemote);
Server.DataPortalResult result = null;
try
{
result = proxy.Fetch(objectType, criteria, dpContext);
}
finally
{
if (proxy.IsServerRemote && result != null)
{
DistributionContext.SetGlobalContext(result.GlobalContext);
}
}
//不能等于 ReturnObject=null
return(result.ReturnObject);
}
public DomainService()
{
this._dataPortalLocation = LEnvironment.IsOnServer() ? DataPortalLocation.Local : DataPortalLocation.Local;
}
public Service()
{
this._dataPortalLocation = RafyEnvironment.IsOnServer() ? DataPortalLocation.Local : DataPortalLocation.Dynamic;
}
public DomainService()
{
this._dataPortalLocation = LEnvironment.IsOnServer() ? DataPortalLocation.Local : DataPortalLocation.Local;
}
public Service()
{
this._dataPortalLocation = RafyEnvironment.IsOnServer() ? DataPortalLocation.Local : DataPortalLocation.Dynamic;
}
/// <summary>
/// Called by the business object's Save() method to
/// insert, update or delete an object in the database.
/// </summary>
/// <param name="obj">A reference to the business object to be updated.</param>
/// <param name="loc">The loc.</param>
/// <returns>
/// A reference to the updated business object.
/// </returns>
/// <remarks>
/// Note that this method returns a reference to the updated business object.
/// If the server-side DataPortal is running remotely, this will be a new and
/// different object from the original, and all object references MUST be updated
/// to use this new object.
/// </remarks>
public static object Update(object obj, DataPortalLocation loc = DataPortalLocation.Dynamic)
{
try
{
RafyEnvironment.ThreadPortalCount++;
object res = null;
//只是不要纯客户端，都直接使用本地访问
if (loc == DataPortalLocation.Local || RafyEnvironment.Location.ConnectDataDirectly)
{
/*********************** 代码块解释 *********************************
*
* 由于开发人员平时会使用单机版本开发，而正式部署时，又会选用 C/S 架构。
* 所以需要保证单机版本和 C/S 架构版本的模式是一样的。也就是说，在单机模式下，
* 在通过门户访问时，模拟网络版，clone 出一个新的对象。
* 这样，在底层 Update 更改 obj 时，不会影响上层的实体。
* 而是以返回值的形式把这个被修改的实体返回给上层。
*
* 20120828
* 但是，当在服务端本地调用时，不需要此模拟功能。
* 这是因为在服务端本地调用时（例如服务端本地调用 RF.Save），
* 在开发体验上，数据层和上层使用的实体应该是同一个，数据层的修改应该能够带回到上层，不需要克隆。
*
**********************************************************************/
//ThreadPortalCount == 1 表示第一次进入数据门户
if (RafyEnvironment.Location.IsWPFUI && RafyEnvironment.Location.ConnectDataDirectly && RafyEnvironment.ThreadPortalCount == 1)
{
res = ObjectCloner.Clone(obj);
}
else
{
res = obj;
}
FinalDataPortal.Update(res);
}
else
{
var proxy = GetDataPortalProxy();
var dpContext = CreateDataPortalContext();
var result = proxy.Update(obj, dpContext);
res = ReadServerResult(result);
}
return res;
}
finally
{
RafyEnvironment.ThreadPortalCount--;
}
}
