IContractBehaviorAttribute.TargetContract Property
Definition
Important
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Gets the type of the contract to which the contract behavior is applicable.
public:
property Type ^ TargetContract { Type ^ get(); };
public Type TargetContract { get; }
member this.TargetContract : Type
Public ReadOnly Property TargetContract As Type
Property Value
The contract to which the contract behavior is applicable.
Examples
The following code example assumes a custom System.ServiceModel.Dispatcher.IInstanceProvider implementation called ObjectProviderBehavior
that provides a "singleton" behavior; it always returns the same service instance and does not recycle it.
To insert the instance provider customization, the example shows how to implement a custom attribute (SingletonBehaviorAttribute
) that implements System.ServiceModel.Description.IContractBehavior to insert the custom service instance provider. It also implements IContractBehaviorAttribute, which binds its application to the ISampleService
contract.
public class SingletonBehaviorAttribute : Attribute, IContractBehaviorAttribute, IContractBehavior
{
#region IContractBehaviorAttribute Members
public Type TargetContract
{
get { return typeof(ISampleService); }
}
#endregion
#region IContractBehavior Members
public void AddBindingParameters(ContractDescription description, ServiceEndpoint endpoint, System.ServiceModel.Channels.BindingParameterCollection parameters)
{
return;
}
public void ApplyClientBehavior(ContractDescription description, ServiceEndpoint endpoint, ClientRuntime clientRuntime)
{
return;
}
public void ApplyDispatchBehavior(ContractDescription description, ServiceEndpoint endpoint, DispatchRuntime dispatch)
{
dispatch.InstanceProvider = new ObjectProviderBehavior("Custom ObjectProviderBehavior constructor.");
}
public void Validate(ContractDescription description, ServiceEndpoint endpoint)
{
return;
}
#endregion
}
Public Class SingletonBehaviorAttribute
Inherits Attribute
Implements IContractBehaviorAttribute, IContractBehavior
#Region "IContractBehaviorAttribute Members"
Public ReadOnly Property TargetContract() As Type Implements IContractBehaviorAttribute.TargetContract
Get
Return GetType(ISampleService)
End Get
End Property
#End Region
#Region "IContractBehavior Members"
Public Sub AddBindingParameters(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint, ByVal parameters As System.ServiceModel.Channels.BindingParameterCollection) Implements IContractBehavior.AddBindingParameters
Return
End Sub
Public Sub ApplyClientBehavior(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint, ByVal clientRuntime As ClientRuntime) Implements IContractBehavior.ApplyClientBehavior
Return
End Sub
Public Sub ApplyDispatchBehavior(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint, ByVal dispatch As DispatchRuntime) Implements IContractBehavior.ApplyDispatchBehavior
dispatch.InstanceProvider = New ObjectProviderBehavior("Custom ObjectProviderBehavior constructor.")
End Sub
Public Sub Validate(ByVal description As ContractDescription, ByVal endpoint As ServiceEndpoint) Implements IContractBehavior.Validate
Return
End Sub
#End Region
End Class
Remarks
Implement the TargetContract property to specify the contract to which the contract behavior is applied when the implementing System.ServiceModel.Description.IContractBehavior attribute is applied to a service class.
Applies to
.NET
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