/// <summary>
/// Called by <see cref="DataPortal" /> to load 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)
{
if (isSync || Csla.ApplicationContext.LogicalExecutionLocation == ApplicationContext.LogicalExecutionLocations.Server)
{
return(await _portal.Fetch(objectType, criteria, context, isSync));
}
else
{
var tcs = new TaskCompletionSource <DataPortalResult>();
var bw = new Csla.Threading.BackgroundWorker();
bw.DoWork += (s, o) =>
{
o.Result = _portal.Fetch(objectType, criteria, context, isSync).Result;
};
bw.RunWorkerCompleted += (s, o) =>
{
if (o.Error == null)
{
tcs.TrySetResult((DataPortalResult)o.Result);
}
else
{
tcs.TrySetException(o.Error);
}
};
bw.RunWorkerAsync();
return(await tcs.Task);
}
}
/// <summary>
/// Called by <see cref="DataPortal" /> to load 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)
{
DataPortalResult result;
SetApplicationContext(criteria, CurrentApplicationContext);
if (isSync || OriginalApplicationContext.LogicalExecutionLocation == ApplicationContext.LogicalExecutionLocations.Server)
{
result = await _portal.Fetch(objectType, criteria, context, isSync);
}
else
{
if (!Options.FlowSynchronizationContext || SynchronizationContext.Current == null)
{
result = await Task.Run(() => this._portal.Fetch(objectType, criteria, context, isSync));
}
else
{
result = await await Task.Factory.StartNew(() => this._portal.Fetch(objectType, criteria, context, isSync),
CancellationToken.None,
TaskCreationOptions.None,
TaskScheduler.FromCurrentSynchronizationContext());
}
}
SetApplicationContext(result.ReturnObject, OriginalApplicationContext);
SetApplicationContext(result.Error, OriginalApplicationContext);
return(result);
}
/// <summary>
/// Called by <see cref="DataPortal" /> to load 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)
{
if (isSync || Csla.ApplicationContext.LogicalExecutionLocation == ApplicationContext.LogicalExecutionLocations.Server)
{
return(await _portal.Fetch(objectType, criteria, context, isSync));
}
else
{
return(await await _taskFactory.StartNew(() => this._portal.Fetch(objectType, criteria, context, isSync)));
}
}
/// <summary>
/// Called by <see cref="DataPortal" /> to load 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)
{
if (isSync || Csla.ApplicationContext.LogicalExecutionLocation == ApplicationContext.LogicalExecutionLocations.Server)
{
return(await _portal.Fetch(objectType, criteria, context, isSync));
}
else
{
if (SynchronizationContext.Current == null)
{
return(await await this._taskFactory.StartNew(() => this._portal.Fetch(objectType, criteria, context, isSync)));
}
return(await await this._taskFactory.StartNew(() => this._portal.Fetch(objectType, criteria, context, isSync),
CancellationToken.None,
TaskCreationOptions.None,
TaskScheduler.FromCurrentSynchronizationContext()));
}
}
public DataPortalResult Fetch(object criteria, DataPortalContext context)
{
return(_portal.Fetch(criteria, context));
}
public Server.DataPortalResult Fetch(object criteria, Server.DataPortalContext context)
{
return(Portal.Fetch(criteria, context));
}