OperationFlow Enumeration

 

Specifies the type of transmission an endpoint of the XML Web service can support.

Namespace:   System.Web.Services.Description
Assembly:  System.Web.Services (in System.Web.Services.dll)

public enum class OperationFlow

Member nameDescription
None

Indicates that the endpoint of the XML Web service receives no transmissions.

Notification

Indicates that the endpoint of the XML Web service sends a message.

OneWay

Indicates that the endpoint of the XML Web service receives a message.

RequestResponse

Indicates that the endpoint of the XML Web service receives a message, then sends a correlated message.

SolicitResponse

Indicates that the endpoint of the XML Web service sends a message, then receives a correlated message.

Although request-response or solicit-response operations are logically correlated in the Web Services Description Language (WSDL) document, the concrete correlation information will be specified by a binding. For example, the request and response messages can be exchanged as part of one or two actual HTTP transmissions.

The following sample demonstrates the use of the OperationFlow enumeration.

#using <System.dll>
#using <System.Web.Services.dll>
#using <System.Xml.dll>

using namespace System;
using namespace System::Xml;
using namespace System::Web::Services;
using namespace System::Web::Services::Description;

void DisplayOperationFlowDescription( OperationFlow myOperationFlow )
{
   switch ( myOperationFlow )
   {
      case OperationFlow::None:
         Console::WriteLine( "Indicates that the endpoint or service "
         "receives no transmissions (None)." );
         break;

      case OperationFlow::OneWay:
         Console::WriteLine( "Indicates that the endpoint or service "
         "receives a message (OneWay)." );
         break;

      case OperationFlow::Notification:
         Console::WriteLine( "Indicates that the endpoint or service "
         "sends a message (Notification)." );
         break;

      case OperationFlow::SolicitResponse:
         Console::WriteLine( "Indicates that the endpoint or service "
         "sends a message, then receives a "
         "correlated message (SolicitResponse)." );
         break;

      case OperationFlow::RequestResponse:
         Console::WriteLine( "Indicates that the endpoint or service "
         "receives a message, then sends a "
         "correlated message (RequestResponse)." );
         break;
   }
}

int main()
{
   try
   {
      ServiceDescription^ myDescription = ServiceDescription::Read( "MathService_Input_cs.wsdl" );
      PortTypeCollection^ myPortTypeCollection = myDescription->PortTypes;

      // Get the OperationCollection for SOAP protocol.
      OperationCollection^ myOperationCollection = myPortTypeCollection[ 0 ]->Operations;

      // Get the OperationMessageCollection for the Add operation.
      OperationMessageCollection^ myOperationMessageCollection = myOperationCollection[ 0 ]->Messages;

      // Indicate that the endpoint or service receives no
      // transmissions (None).
      Console::WriteLine( "myOperationMessageCollection does not "
      "contain any operation messages." );
      DisplayOperationFlowDescription( myOperationMessageCollection->Flow );
      Console::WriteLine();

      // Indicate that the endpoint or service receives a message (OneWay).
      OperationMessage^ myInputOperationMessage = dynamic_cast<OperationMessage^>(gcnew OperationInput);
      XmlQualifiedName^ myXmlQualifiedName = gcnew XmlQualifiedName( "AddSoapIn",myDescription->TargetNamespace );
      myInputOperationMessage->Message = myXmlQualifiedName;
      myOperationMessageCollection->Add( myInputOperationMessage );
      Console::WriteLine( "myOperationMessageCollection contains "
      "only input operation messages." );
      DisplayOperationFlowDescription( myOperationMessageCollection->Flow );
      Console::WriteLine();
      myOperationMessageCollection->Remove( myInputOperationMessage );

      // Indicate that an endpoint or service sends a message (Notification).
      OperationMessage^ myOutputOperationMessage = dynamic_cast<OperationMessage^>(gcnew OperationOutput);
      XmlQualifiedName^ myXmlQualifiedName1 = gcnew XmlQualifiedName( "AddSoapOut",myDescription->TargetNamespace );
      myOutputOperationMessage->Message = myXmlQualifiedName1;
      myOperationMessageCollection->Add( myOutputOperationMessage );
      Console::WriteLine( "myOperationMessageCollection contains "
      "only output operation messages." );
      DisplayOperationFlowDescription( myOperationMessageCollection->Flow );
      Console::WriteLine();

      // Indicate that an endpoint or service sends a message, then
      // receives a correlated message (SolicitResponse).
      myOperationMessageCollection->Add( myInputOperationMessage );
      Console::WriteLine( "'myOperationMessageCollection' contains "
      "an output operation message first, then "
      "an input operation message." );
      DisplayOperationFlowDescription( myOperationMessageCollection->Flow );
      Console::WriteLine();

      // Indicate that an endpoint or service receives a message,
      // then sends a correlated message (RequestResponse).
      myOperationMessageCollection->Remove( myInputOperationMessage );
      myOperationMessageCollection->Insert( 0, myInputOperationMessage );
      Console::WriteLine( "myOperationMessageCollection contains "
      "an input operation message first, then "
      "an output operation message." );
      DisplayOperationFlowDescription( myOperationMessageCollection->Flow );
      Console::WriteLine();
      myDescription->Write( "MathService_new_cs.wsdl" );
      Console::WriteLine( "The file MathService_new_cs.wsdl was successfully written." );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Exception caught!!!" );
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
}

.NET Framework
Available since 1.1
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