/// <summary>
/// Get an existing business object.
/// </summary>
/// <param name="objectType">Type of business object to retrieve.</param>
/// <param name="criteria">Criteria object describing business object.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
{
try
{
context.FactoryInfo = ObjectFactoryAttribute.GetObjectFactoryAttribute(objectType);
if (context.FactoryInfo == null)
{
var dp = new SimpleDataPortal();
return(dp.Fetch(objectType, criteria, context));
}
else
{
var dp = new FactoryDataPortal();
return(dp.Fetch(objectType, criteria, context));
}
}
catch (DataPortalException)
{
throw;
}
catch (Exception ex)
{
throw new DataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
ex, new DataPortalResult());
}
}
/// <summary>
/// Update a business object.
/// </summary>
/// <param name="obj">Business object to update.</param>
/// <param name="context">
/// <see cref="Server.DataPortalContext" /> object passed to the server.
/// </param>
public DataPortalResult Update(object obj, DataPortalContext context)
{
try
{
context.FactoryInfo = ObjectFactoryAttribute.GetObjectFactoryAttribute(obj.GetType());
if (context.FactoryInfo == null)
{
var dp = new SimpleDataPortal();
return(dp.Update(obj, context));
}
else
{
var dp = new FactoryDataPortal();
return(dp.Update(obj, context));
}
}
catch (DataPortalException)
{
throw;
}
catch (Exception ex)
{
throw new DataPortalException(
"DataPortal.Update " + Resources.FailedOnServer,
ex, new DataPortalResult(obj));
}
}
/// <summary>
/// Gets a reference to the DataPortal_Fetch method for
/// the specified business object type.
/// </summary>
/// <param name="objectType">Type of the business object.</param>
/// <param name="criteria">Criteria parameter value.</param>
/// <remarks>
/// If the criteria parameter value is an integer, that is a special
/// flag indicating that the parameter should be considered missing
/// (not Nothing/null - just not there).
/// </remarks>
internal static DataPortalMethodInfo GetFetchMethod(Type objectType, object criteria)
{
// an "Integer" criteria is a special flag indicating
// that criteria is empty and should not be used
DataPortalMethodInfo method = null;
var factoryInfo = ObjectFactoryAttribute.GetObjectFactoryAttribute(objectType);
if (factoryInfo == null)
{
if (criteria is int)
{
method = GetMethodInfo(objectType, "DataPortal_Fetch");
}
else
{
method = GetMethodInfo(objectType, "DataPortal_Fetch", criteria);
}
}
else
{
var factoryType = FactoryDataPortal.FactoryLoader.GetFactoryType(factoryInfo.FactoryTypeName);
if (factoryType != null)
{
if (criteria is int)
{
method = GetMethodInfo(
factoryType,
factoryInfo.FetchMethodName);
}
else
{
method = GetMethodInfo(
FactoryDataPortal.FactoryLoader.GetFactoryType(factoryInfo.FactoryTypeName),
factoryInfo.FetchMethodName,
criteria);
}
}
else
{
method = new DataPortalMethodInfo();
}
}
return(method);
}
public DataPortalResult Update(object obj, DataPortalContext context)
{
try
{
SetContext(context);
Authorize(new AuthorizeRequest(obj.GetType(), obj, DataPortalOperations.Update));
DataPortalResult result;
DataPortalMethodInfo method;
var factoryInfo = ObjectFactoryAttribute.GetObjectFactoryAttribute(obj.GetType());
if (factoryInfo != null)
{
var factoryType = FactoryDataPortal.FactoryLoader.GetFactoryType(factoryInfo.FactoryTypeName);
var bbase = obj as Core.BusinessBase;
if (bbase != null && bbase.IsDeleted)
{
method = Server.DataPortalMethodCache.GetMethodInfo(factoryType, factoryInfo.DeleteMethodName, new object[] { obj });
}
else
{
method = Server.DataPortalMethodCache.GetMethodInfo(factoryType, factoryInfo.UpdateMethodName, new object[] { obj });
}
}
else
{
string methodName;
var bbase = obj as Core.BusinessBase;
if (bbase != null)
{
if (bbase.IsDeleted)
{
methodName = "DataPortal_DeleteSelf";
}
else
if (bbase.IsNew)
{
methodName = "DataPortal_Insert";
}
else
{
methodName = "DataPortal_Update";
}
}
else if (obj is CommandBase)
{
methodName = "DataPortal_Execute";
}
else
{
methodName = "DataPortal_Update";
}
method = DataPortalMethodCache.GetMethodInfo(obj.GetType(), methodName);
}
context.TransactionalType = method.TransactionalType;
IDataPortalServer portal;
switch (method.TransactionalType)
{
case TransactionalTypes.EnterpriseServices:
portal = new ServicedDataPortal();
try
{
result = portal.Update(obj, context);
}
finally
{
((ServicedDataPortal)portal).Dispose();
}
break;
case TransactionalTypes.TransactionScope:
portal = new TransactionalDataPortal();
result = portal.Update(obj, context);
break;
default:
portal = new DataPortalSelector();
result = portal.Update(obj, context);
break;
}
return(result);
}
catch (YYT.Server.DataPortalException ex)
{
Exception tmp = ex;
throw;
}
catch (Exception ex)
{
throw new DataPortalException(
"DataPortal.Update " + Resources.FailedOnServer,
ex, new DataPortalResult());
}
finally
{
ClearContext(context);
}
}