在 Web.config 中添加工作流扩展

发布于 2024-10-03 04:26:35 字数 97 浏览 0 评论 0原文

部署到 IIS 或 AppFabric 时，如何在 Web.config 中配置自定义工作流扩展（例如 PersistenceParticipant 后代）？（适用于 WF 4）

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七婞 2024-10-10 04:26:37

您可以在活动的 CacheMetadata 中或通过服务行为来执行此操作，如下所示。

创建 IServiceBehavior 以添加扩展，并创建BehaviorExtensionElement 以加载 IServiceBehavior。

public class MyExtensionElement : BehaviorExtensionElement
{
    public override Type BehaviorType
    {
        get 
        { 
            return typeof(MyExtensionBehavior); 
        }
    }
    protected override object CreateBehavior()
    {
        return new MyExtensionBehavior();
    }
}

public class MyExtensionBehavior : IServiceBehavior
    {
    public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
    {
        var host = (WorkflowServiceHost)serviceHostBase;
        host.WorkflowExtensions.Add<MyExtension>(() => new MyExtension());
    }
}

接下来将其注册为配置中的行为扩展并在您的服务行为中使用

<system.serviceModel>
    <extensions>
        <behaviorExtensions>
            <add name="myExtension"
                 type="MyWorkflowService.MyExtensionElement, MyWorkflowService"/>
        </behaviorExtensions>
    </extensions>
    <behaviors>
        <serviceBehaviors>
            <behavior>
                <myExtension/>
            </behavior>
        </serviceBehaviors>
    </behaviors>
</system.serviceModel>

You can do so in the CacheMetadata of an activity or through a service behavior as follows.

Create an IServiceBehavior to add the extension and a BehaviorExtensionElement to load the IServiceBehavior.

public class MyExtensionElement : BehaviorExtensionElement
{
    public override Type BehaviorType
    {
        get 
        { 
            return typeof(MyExtensionBehavior); 
        }
    }
    protected override object CreateBehavior()
    {
        return new MyExtensionBehavior();
    }
}

public class MyExtensionBehavior : IServiceBehavior
    {
    public void ApplyDispatchBehavior(ServiceDescription serviceDescription, ServiceHostBase serviceHostBase)
    {
        var host = (WorkflowServiceHost)serviceHostBase;
        host.WorkflowExtensions.Add<MyExtension>(() => new MyExtension());
    }
}

Next register it as an behaviorExtensions in the config and use in in your service behavior

<system.serviceModel>
    <extensions>
        <behaviorExtensions>
            <add name="myExtension"
                 type="MyWorkflowService.MyExtensionElement, MyWorkflowService"/>
        </behaviorExtensions>
    </extensions>
    <behaviors>
        <serviceBehaviors>
            <behavior>
                <myExtension/>
            </behavior>
        </serviceBehaviors>
    </behaviors>
</system.serviceModel>

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