把请求路由到有状态业务流程实例。
The routing of requests to stateful business process instances.
查询出任务之前，您需要启动流程实例。
Before you query out the tasks, you need to start the process instances.
在清单3中输入以下命令来迁移流程实例。
Enter the following command in Listing 3 to migrate the process instances.
在流程实例迁移期间您可以生成CBE事件。
You can generate CBE events during the process instance migration.
它附带了手动修改流程实例的状态的新功能。
It comes with new functions to manually modify the state of process instances.
相关集可让您指定哪些消息属于哪些流程实例。
A correlation set lets you specify which messages belong to which process instance.
了解如何使用相关集实现业务流程实例间的交互。
Understand how interaction between multiple business process instances are implemented using correlation sets.
流程实例只允许在执行期间合适的点上进行迁移。
Process instances are only allowed to be migrated at suitable points during execution.
通过单击流程实例名称，从列表中选择流程实例之一。
Select one of the process instances from the list by clicking on the process instance name.
本文将说明如何使用相关集来唯一地标识业务流程实例。
The article shows how to use correlation sets to uniquely identify a business process instance.
在实际场景中，可能会发生无法正确执行少量流程实例。
In real life scenarios, it can happen that a small number of process instances cannot be executed correctly.
在流程实例迁移后，已经导航的活动并不受迁移的影响。
The activities that have already been navigated when the process instance is migrated are not affected by the migration.
随着活动流程实例数量的增加，系统的性能会大幅度下降。
As the number of active process instances increased, the system's performance degraded significantly.
有些流程和业务异常可能不严重，不应导致流程实例终止。
Some of the process and business exceptions can be of trivial severity and should not cause the process instance to abort.
清单3显示的代码片段根据流程实例ID获取事件处理程序。
Listing 3 shows the code snippet getting the event handler by a process instance ID.
流程定义描述流程实例的方式类似任务描述任务实例的方式。
A process definition describes a process instance in a manner similar to the way a task describes a task instance.
您可以在动态分析-流程实例摘要报告中查看结果(图38)。
You can view the results in the Dynamic Analysis - Process Instances Summary report (Figure 38).
在运行时，每个流程实例只能具有变量VP和VM的一个实例。
At runtime, the variables VP and VM have only one instance per process instance.
这是一项重要功能，例如将外部请求与正确的流程实例进行关联。
This is an important feature, for example, to correlate external requests to the correct process instances.
您可以选择要为每个流程实例显示的度量，以及排序顺序和格式。
You can select metrics to show for each process instance, along with a sort order and a format.
ProcessServer使用流程模板来启动流程实例。
Process Server USES the process template to start process instances.
如果这不是必需的，则可以使用创建流程实例的通用EJB接口。
If this is not required, the generic EJB Interface to create process instances can be used.
图12显示了流程实例执行的三个活动，并按相反顺序显示。
The three activities undertaken by our process instance are displayed (Figure 12), displayed in reverse sequence.
根据自定义属性执行查询之前，您需要为流程实例设置自定义属性。
Before you can query by custom property, you need to set the custom property for the process instance.
在此情况下，较好的方法是能够跳过流程实例中的一个或多个活动。
In this case, it is beneficial to be able to skip one or more activities in a process instance.
注意，流程实例中的并行路径可以继续执行并且流程状态保持运行。
Notice that parallel paths in the process instance can proceed and the process state remains running.
当流程执行时，一个流程实例——流程的运行时表示——就会被创建。
When a process is executing, a process instance - runtime representation of a process - is created.
流程实例的删除也通过“流程已删除”事件（21020）而被记录。
The deletion of a process instance is also logged with a "process deleted" event (21020).
存在多个业务流程实例时，需要能够唯一地标识返回响应的流程实例。
When there are multiple process instances, you need to be able to uniquely identify the process instance that returns the response.
关于对流程模板进行修改的更多细节，参考流程实例迁移的支持文档。
For more details about the changes that you can make to the process model, refer to Supporting documentation for process instance migration.
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