DeliveryRequirementsAttribute Class
Assembly: System.ServiceModel (in system.servicemodel.dll)
'Declaration <AttributeUsageAttribute(AttributeTargets.Class Or AttributeTargets.Interface, AllowMultiple:=True)> _ Public NotInheritable Class DeliveryRequirementsAttribute Inherits Attribute Implements IContractBehavior, IContractBehaviorAttribute 'Usage Dim instance As DeliveryRequirementsAttribute
/** @attribute AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Interface, AllowMultiple=true) */ public final class DeliveryRequirementsAttribute extends Attribute implements IContractBehavior, IContractBehaviorAttribute
AttributeUsageAttribute(AttributeTargets.Class|AttributeTargets.Interface, AllowMultiple=true) public final class DeliveryRequirementsAttribute extends Attribute implements IContractBehavior, IContractBehaviorAttribute
Not applicable.
Use the DeliveryRequirementsAttribute to instruct Windows Communication Foundation (WCF) to confirm that the binding provides the features required by the service or client implementation. If a DeliveryRequirementsAttribute attribute is detected when a service description is loaded from an application configuration file or built programmatically in code, WCF validates the configured binding and supports all the features that the attribute specifies. For example, your service may require the bindings to support queuing. Using DeliveryRequirementsAttribute allows WCF to confirm that the following requirements are met:
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The QueuedDeliveryRequirements property specifies the queuing requirements that a binding must meet.
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The RequireOrderedDelivery property indicates whether the binding must support ordered messaging.
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Use the TargetContract property to indicate to which type the requirements apply.
The DeliveryRequirementsAttribute attribute is applied to a class, which can implement any number of service contract interfaces. DeliveryRequirementsAttribute can be applied to all the contracts the class implements or to only one of them. The attribute can be applied to a class more than once.
Imports System Imports System.ServiceModel <ServiceContract()> _ Public Interface ICalculatorService <OperationBehavior()> _ Function Add(ByVal a As Integer, ByVal b As Integer) As Integer <OperationContract()> _ Function Subtract(ByVal a As Integer, ByVal b As Integer) As Integer End Interface <DeliveryRequirements( _ QueuedDeliveryRequirements:=QueuedDeliveryRequirementsMode.NotAllowed, _ RequireOrderedDelivery:=True _ )> _ Class CalculatorService Public Function add(ByVal a As Integer, ByVal b As Integer) As Integer Console.WriteLine("Add called") Return a + b End Function Public Function Subtract(ByVal a As Integer, ByVal b As Integer) As Integer Console.WriteLine("Subtract called.") Return a - b End Function Public Function Multiply(ByVal a As Integer, ByVal b As Integer) As Integer Return a * b End Function End Class
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.