ChannelFactory Class

 

Creates and manages the channels that are used by clients to send messages to service endpoints.

Namespace:   System.ServiceModel
Assembly:  System.ServiceModel (in System.ServiceModel.dll)


public abstract class ChannelFactory : CommunicationObject, IChannelFactory, 
	ICommunicationObject, IDisposable

NameDescription
System_CAPS_protmethodChannelFactory()

Initializes a new instance of the ChannelFactory class.

NameDescription
System_CAPS_pubpropertyCredentials

Gets the credentials used by clients to communicate a service endpoint over the channels produced by the factory.

System_CAPS_protpropertyDefaultCloseTimeout

Gets the default interval of time provided for a close operation to complete.(Overrides CommunicationObject.DefaultCloseTimeout.)

System_CAPS_protpropertyDefaultOpenTimeout

Gets the default interval of time provided for an open operation to complete.(Overrides CommunicationObject.DefaultOpenTimeout.)

System_CAPS_pubpropertyEndpoint

Gets the service endpoint to which the channels produced by the factory connect.

System_CAPS_protpropertyIsDisposed

Gets a value that indicates whether the communication object has been disposed.(Inherited from CommunicationObject.)

System_CAPS_pubpropertyState

Gets a value that indicates the current state of the communication object.(Inherited from CommunicationObject.)

System_CAPS_protpropertyThisLock

Gets the mutually exclusive lock that protects the class instance during a state transition.(Inherited from CommunicationObject.)

NameDescription
System_CAPS_pubmethodAbort()

Causes a communication object to transition immediately from its current state into the closing state.(Inherited from CommunicationObject.)

System_CAPS_protmethodApplyConfiguration(String)

Initializes the channel factory with the behaviors provided by a specified configuration file and with those in the service endpoint of the channel factory.

System_CAPS_pubmethodBeginClose(AsyncCallback, Object)

Begins an asynchronous operation to close a communication object.(Inherited from CommunicationObject.)

System_CAPS_pubmethodBeginClose(TimeSpan, AsyncCallback, Object)

Begins an asynchronous operation to close a communication object with a specified timeout.(Inherited from CommunicationObject.)

System_CAPS_pubmethodBeginOpen(AsyncCallback, Object)

Begins an asynchronous operation to open a communication object.(Inherited from CommunicationObject.)

System_CAPS_pubmethodBeginOpen(TimeSpan, AsyncCallback, Object)

Begins an asynchronous operation to open a communication object within a specified interval of time.(Inherited from CommunicationObject.)

System_CAPS_pubmethodClose()

Causes a communication object to transition from its current state into the closed state.(Inherited from CommunicationObject.)

System_CAPS_pubmethodClose(TimeSpan)

Causes a communication object to transition from its current state into the closed state within a specified interval of time.(Inherited from CommunicationObject.)

System_CAPS_protmethodCreateDescription()

When implemented in a derived class, creates a description of the service endpoint associated with the channel factory.

System_CAPS_protmethodCreateFactory()

Builds the channel factory for the current endpoint of the factory.

System_CAPS_pubmethodEndClose(IAsyncResult)

Completes an asynchronous operation to close a communication object.(Inherited from CommunicationObject.)

System_CAPS_pubmethodEndOpen(IAsyncResult)

Completes an asynchronous operation to open a communication object.(Inherited from CommunicationObject.)

System_CAPS_protmethodEnsureOpened()

Opens the current channel factory if it is not yet opened.

System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFault()

Causes a communication object to transition from its current state into the faulted state.(Inherited from CommunicationObject.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_protmethodGetCommunicationObjectType()

Gets the type of communication object.(Inherited from CommunicationObject.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetProperty<T>()

Returns the typed object requested, if present, from the appropriate layer in the channel stack, or null if not present.

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodInitializeEndpoint(Binding, EndpointAddress)

Initializes the service endpoint of the channel factory with a specified binding and address.

System_CAPS_protmethodInitializeEndpoint(ServiceEndpoint)

Initializes the service endpoint of the channel factory with a specified endpoint.

System_CAPS_protmethodInitializeEndpoint(String, EndpointAddress)

Initializes the service endpoint of the channel factory with a specified address and configuration.

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_protmethodOnAbort()

Terminates the inner channel factory of the current channel factory.(Overrides CommunicationObject.OnAbort().)

System_CAPS_protmethodOnBeginClose(TimeSpan, AsyncCallback, Object)

Begins an asynchronous close operation on the inner channel factory of the current channel factory that has a state object associated with it. (Overrides CommunicationObject.OnBeginClose(TimeSpan, AsyncCallback, Object).)

System_CAPS_protmethodOnBeginOpen(TimeSpan, AsyncCallback, Object)

Begins an asynchronous open operation on the inner channel factory of the current channel factory that has a state object associated with it. (Overrides CommunicationObject.OnBeginOpen(TimeSpan, AsyncCallback, Object).)

System_CAPS_protmethodOnClose(TimeSpan)

Calls close on the inner channel factory with a specified time-out for the completion of the operation.(Overrides CommunicationObject.OnClose(TimeSpan).)

System_CAPS_protmethodOnClosed()

Invoked during the transition of a communication object into the closing state.(Inherited from CommunicationObject.)

System_CAPS_protmethodOnClosing()

Invoked during the transition of a communication object into the closing state.(Inherited from CommunicationObject.)

System_CAPS_protmethodOnEndClose(IAsyncResult)

Completes an asynchronous close operation on the inner channel factory of the current channel factory. (Overrides CommunicationObject.OnEndClose(IAsyncResult).)

System_CAPS_protmethodOnEndOpen(IAsyncResult)

Completes an asynchronous open operation on the inner channel factory of the current channel factory. (Overrides CommunicationObject.OnEndOpen(IAsyncResult).)

System_CAPS_protmethodOnFaulted()

Inserts processing on a communication object after it transitions to the faulted state due to the invocation of a synchronous fault operation.(Inherited from CommunicationObject.)

System_CAPS_protmethodOnOpen(TimeSpan)

Calls open on the inner channel factory of the current channel factory with a specified time-out for the completion of the operation.(Overrides CommunicationObject.OnOpen(TimeSpan).)

System_CAPS_protmethodOnOpened()

Initializes a read-only copy of the ClientCredentials object for the channel factory.(Overrides CommunicationObject.OnOpened().)

System_CAPS_protmethodOnOpening()

Builds the inner channel factory for the current channel.(Overrides CommunicationObject.OnOpening().)

System_CAPS_pubmethodOpen()

Causes a communication object to transition from the created state into the opened state.(Inherited from CommunicationObject.)

System_CAPS_pubmethodOpen(TimeSpan)

Causes a communication object to transition from the created state into the opened state within a specified interval of time.(Inherited from CommunicationObject.)

System_CAPS_protmethodThrowIfDisposed()

Throws an exception if the communication object is disposed.(Inherited from CommunicationObject.)

System_CAPS_protmethodThrowIfDisposedOrImmutable()

Throws an exception if the communication object the State property is not set to the Created state.(Inherited from CommunicationObject.)

System_CAPS_protmethodThrowIfDisposedOrNotOpen()

Throws an exception if the communication object is not in the Opened state.(Inherited from CommunicationObject.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubeventClosed

Occurs when a communication object transitions into the closed state.(Inherited from CommunicationObject.)

System_CAPS_pubeventClosing

Occurs when a communication object transitions into the closing state.(Inherited from CommunicationObject.)

System_CAPS_pubeventFaulted

Occurs when a communication object transitions into the faulted state.(Inherited from CommunicationObject.)

System_CAPS_pubeventOpened

Occurs when a communication object transitions into the opened state.(Inherited from CommunicationObject.)

System_CAPS_pubeventOpening

Occurs when a communication object transitions into the opening state.(Inherited from CommunicationObject.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethodIDisposable.Dispose()

Closes the current channel factory.

Channel factories that implement the IChannelFactory interface and their associated channels are generally used by the initiators of a communication pattern. Listener factories that implement the IChannelListener interface and their associated listeners provide the mechanisms with which channels are accepted for communications.

This class is not part of the channel model, but of the service model. The CreateFactory method provides the means to create an IChannelFactory for a service endpoint. Use it to construct a client that hooks up to an interface contract on the service without using metadata or policy.

System_CAPS_noteNote

Setting ChannelFactory.Credentials.Windows.AllowedImpersonationLevel to TokenImpersonationLevel.Anonymous always results in an anonymous logon regardless of impersonation level.

Special note for Managed C++ users deriving from this class:

  • Put your cleanup code in (On)(Begin)Close (and/or OnAbort), not in a destructor.

  • Avoid destructors; they cause the compiler to auto-generate IDisposable.

  • Avoid non-reference members; they can cause the compiler to auto-generate IDisposable.

  • Avoid using a finalizer; but if you include one, you should suppress the build warning and call SuppressFinalize(Object) and the finalizer itself from (On)(Begin)Close (and/or OnAbort) to emulate what would have been the auto-generated IDisposable behavior.

When adding behaviors programmatically, the behavior is added to the appropriate Behaviors property on the ChannelFactory prior to the creation of any channel. See the example section for a code sample.

The following code example shows how to insert programmatically a client behavior prior to the creation of the channel object by the factory.

public class Client
{
  public static void Main()
  {
    try
    {
      // Picks up configuration from the config file.
      ChannelFactory<ISampleServiceChannel> factory 
        = new ChannelFactory<ISampleServiceChannel>("WSHttpBinding_ISampleService");

      // Add the client side behavior programmatically to all created channels.
      factory.Endpoint.Behaviors.Add(new EndpointBehaviorMessageInspector());

      ISampleServiceChannel wcfClientChannel = factory.CreateChannel();

      // Making calls.
      Console.WriteLine("Enter the greeting to send: ");
      string greeting = Console.ReadLine();
      Console.WriteLine("The service responded: " + wcfClientChannel.SampleMethod(greeting));

      Console.WriteLine("Press ENTER to exit:");
      Console.ReadLine();

      // Done with service. 
      wcfClientChannel.Close();
      Console.WriteLine("Done!");
    }
    catch (TimeoutException timeProblem)
    {
      Console.WriteLine("The service operation timed out. " + timeProblem.Message);
      Console.Read();
    }
    catch (FaultException<SampleFault> fault)
    {
      Console.WriteLine("SampleFault fault occurred: {0}", fault.Detail.FaultMessage);
      Console.Read();
    }
    catch (CommunicationException commProblem)
    {
      Console.WriteLine("There was a communication problem. " + commProblem.Message);
      Console.Read();
    }
  }

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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