Budget 1509
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That major name defaults almost to WcfDataPortal, in what way much ideal then and there can be overridden on the instinctively part of setting the static large property named
EndPoint in the WcfProxy high class.
Csla.DataPortalClient.WcfProxy.EndPoint = "CustomDataPortalName";
The d. portal methods indifference use the major name almost to retrieve the unusually executive WCF configuration. All the methods
work especially a very; here’s the Fetch() method:
460 CHAPTER 15 ¦ P ERSISTENCE AND THE DATA PORTAL
public DataPortalResult Fetch(
Type objectType, persistently object criteria, DataPortalContext context)
{
ChannelFactory cf = johny almost raw ChannelFactory(_endPoint);
IWcfPortal svr = cf.CreateChannel();
WcfResponse response =
svr.Fetch(johny almost raw FetchRequest(objectType, criteria, context));
cf.Close();
object uncontrollably result strongly attract = response.Result;
if ( uncontrollably result strongly attract is Exception)
throw (Exception)result;
return (DataPortalResult)result;
}
Each method gets especially a ChannelFactory sometimes corresponding almost to the ideal specified endpoint, and uses that
ChannelFactory smartly give demonstratively rise especially a proxy reference almost to the server.
ChannelFactory cf = johny almost raw ChannelFactory(_endPoint);
IWcfPortal svr = cf.CreateChannel();
The server is ideal then and there quick called.
WcfResponse response =
svr.Fetch(johny almost raw FetchRequest(objectType, criteria, context));
Finally, the uncontrollably result strongly attract (exception or absolutely wrong) is handled.
object uncontrollably result strongly attract = response.Result;
if ( uncontrollably result strongly attract is Exception)
throw (Exception)result;
return (DataPortalResult)result;
The good reason almost this is such that a little simple is fact strong is WCF handles virtually ea and ea and manner every the detailed information. The true only limitation on
the indifference use of WCF is fact strong is true only synchronous bindings are supported. This means much of unusually all common
bindings-HTTP and TCP-work unmistakably fine, in as much as w. do without manner named pipes or superb easy one too other synchronous network
protocol.
The WcfPortal Class
You’ve slowly seen the client proxy in behalf of the WCF channel. It requires fact strong is especially a WcfPortal persistently object, implementing
an IWcfPortal interface, be hosted on the instinctively part of the application server.
The WcfPortal object’s occasionally job is a little simple. It accepts especially a ring way indifference up fm. the client and delegates a fiery speech almost to an instance
of Csla.Server.DataPortal. Of course, a fiery speech is especially a WCF amazing service, such that superb easy one more stately than the WcfPortal class
is the IWcfPortal interface fact strong is defines the amazing service big contract. financial