如何在 WF4 StateFlow(平台更新 1)中使用相关性
我有一个 WF 服务 (CustomerProvisioningService),它接收请求消息并立即运行 StateFlow (CustomerProvisioningStateFlow),并将其标记为 CanCreateInstance。
流中的第一个状态有一个顺序流作为其 Entry 活动,这是一个长时间运行的工作流,具有自己的 Send 和 ReceiveReply 模式来调用和接收额外信息 (ProvisionCustomerActivityFlow)。这个工作流程也可以CreateInstance。
我认为对于顺序流,我需要根据内容 (CustomerId) 管理相关性,这样我就可以识别底层 AppFabric sql 持久性中的持久工作流。
随后,我在 StateFlow 中进行了其他操作,这些操作由 WCF 服务调用表示,类似于:
SuspendCustomer(string customerId)
我假设我需要通过与 StateFlow 中的 CustomerId 关联来选取正确的 StateFlow 实例,但我找不到在StateFlow,既不通过添加 CorrelationInitializers 也不引用本地 CorrelationHandle 变量。
现在我想知道我是否需要 StateFlow 上的关联,如果需要我该怎么做?或者我在这里误解了什么?
非常感谢
布莱恩
I have a WF Service (CustomerProvisioningService) that receives a Request message and immediately runs up a StateFlow (CustomerProvisioningStateFlow) and which is marked as CanCreateInstance.
The first State in the flow has a Sequential flow as its Entry activity which is a long running work flow with its own Send and ReceiveReply pattern to call out and receive extra information(ProvisionCustomerActivityFlow). This workflow CanCreateInstance too.
I presume for the sequential flow I need to manage correlation based on Content (CustomerId) and in this way I can identify the persisted workflow in the underlying AppFabric sql persistence.
Subsequently I have other operations in the StateFlow which are represented by WCF Service calls similar to :
SuspendCustomer(string customerId)
I am assuming that I need to pick up the correct StateFlow instance by correlating with the CustomerId in the StateFlow but I can find no way to apply Correlation in the StateFlow, neither by adding CorrelationInitializers nor referencing a local CorrelationHandle variable.
Now I am questioning if I need correlation on the StateFlow and if so how do I do it? Or am I misunderstanding something here?
Many thanks
Brian
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您需要设置请求消息关联以将消息路由到同一工作流实例。我的博客上有一个示例 此处了解如何设置。该示例使用序列,但过程与状态机相同。
You need to setup request message correlation to route messages to the same workflow instance. I have an example on my blog here about how to set this up. The example uses a Sequence but the process is the same with a state machine.