|
private Fetch ( |
||
| objectType | ||
| criteria | object | |
| context | Csla.Server.DataPortalContext | |
| isSync | bool | |
| return | Task |
|
/// <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>
/// <param name="isSync">True if the client-side proxy should synchronously invoke the server.</param>
public async Task <DataPortalResult> Fetch(Type objectType, object criteria, DataPortalContext context, bool isSync)
{
try
{
context.FactoryInfo = ObjectFactoryAttribute.GetObjectFactoryAttribute(objectType);
if (context.FactoryInfo == null)
{
var dp = new SimpleDataPortal();
return(await dp.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false));
}
else
{
var dp = new FactoryDataPortal();
return(await dp.Fetch(objectType, criteria, context, isSync).ConfigureAwait(false));
}
}
catch (DataPortalException)
{
throw;
}
catch (Exception ex)
{
throw DataPortal.NewDataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
ex, null);
}
}
/// <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>
/// 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>
/// <param name="isSync">True if the client-side proxy should synchronously invoke the server.</param>
public async Task<DataPortalResult> Fetch(Type objectType, object criteria, DataPortalContext context, bool isSync)
{
try
{
context.FactoryInfo = ObjectFactoryAttribute.GetObjectFactoryAttribute(objectType);
if (context.FactoryInfo == null)
{
var dp = new SimpleDataPortal();
return await dp.Fetch(objectType, criteria, context, isSync);
}
else
{
var dp = new FactoryDataPortal();
return await dp.Fetch(objectType, criteria, context, isSync);
}
}
catch (DataPortalException)
{
throw;
}
catch (Exception ex)
{
throw DataPortal.NewDataPortalException(
"DataPortal.Fetch " + Resources.FailedOnServer,
ex, null);
}
}
/// <summary>
/// Called by the client-side DataProtal to retrieve an object.
/// </summary>
/// <remarks>
/// This method delegates to
/// <see cref="SimpleDataPortal">SimpleDataPortal</see>
/// but wraps that call within a
/// <see cref="TransactionScope">TransactionScope</see>
/// to provide transactional support via
/// System.Transactions.
/// </remarks>
/// <param name="objectType">Type of business object to retrieve.</param>
/// <param name="criteria">Object-specific criteria.</param>
/// <param name="context">Object containing context data from client.</param>
/// <returns>A populated business object.</returns>
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
{
DataPortalResult result;
using (TransactionScope tr = new TransactionScope())
{
SimpleDataPortal portal = new SimpleDataPortal();
result = portal.Fetch(objectType, criteria, context);
tr.Complete();
}
return(result);
}
/// <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
{
SetContext(context);
DataPortalResult result;
MethodInfo method = MethodCaller.GetMethod(
objectType, "DataPortal_Fetch", criteria);
IDataPortalServer portal;
switch (TransactionalType(method))
{
case TransactionalTypes.EnterpriseServices:
portal = new ServicedDataPortal();
try
{
result = portal.Fetch(objectType, criteria, context);
}
finally
{
((ServicedDataPortal)portal).Dispose();
}
break;
case TransactionalTypes.TransactionScope:
portal = new TransactionalDataPortal();
result = portal.Fetch(objectType, criteria, context);
break;
default:
portal = new SimpleDataPortal();
result = portal.Fetch(objectType, criteria, context);
break;
}
return(result);
}
finally
{
ClearContext(context);
}
}
public DataPortalResult Fetch(Type objectType, object criteria, DataPortalContext context)
{
SimpleDataPortal portal = new SimpleDataPortal();
return(portal.Fetch(objectType, criteria, context));
}
