Websphere工作管理器
我正在使用 commonj.work.WorkManager 并行处理一些查询。我有一系列实现接口的 dao 类，并且有一个执行 run 方法中的方法的 Work 实现。通过此设置，我可以按照工作 API 的预期返回数据。
我现在正在尝试处理错误情况： -dao中遇到异常 - 查询花费的时间比 waitForAll 允许的时间长
我注意到 WorkItem.getResult 对于仍在处理的查询返回 null。我仍然在 ArrayList 中拥有 dao 对象的实例，因此我可以从那里获取参数和设置。看来我应该能够从 WorkItem 中获取它，有更好的方法吗？
另外，我能够获取抛出的异常的唯一方法是将其存储在实现 Work 的类中并为其提供访问器方法。我再次觉得必须有更好的方法。
它在没有 EJB 3、WS 功能包的 websphere 6.1 上运行（因此没有 Java EE 5）。
I am using a commonj.work.WorkManager to process a few queries in parallel. I have a series of dao classes implementing an interface, and have an implementation of Work that executes the methods in the run method. With this set up, I am able to return data as I would expect with the work API.
I am now trying to handle error situations:
-Exception encountered in dao
-queries take longer than waitForAll allows
I noticed that WorkItem.getResult returns null for queries that are still processing. I still have instances to dao objects in an ArrayList, so I can get parameters and settings from there. It does seem like I should be able to get this from the WorkItem though, is there a better way?
Also, the only way I have been able to get at the Exception thrown would be to store it in the class that implements Work and provide an accessor method for it. Again, i feel there must be a better way.
This is running on websphere 6.1 without the EJB 3, WS feature pack (so no Java EE 5).
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尽管这个问题已经存在一年了，但我想在有人遇到这个问题时提供更新。我实现 Work 的类有一个用于存储异常的成员属性。我本来以为这会是一个问题，但实际上效果很好。线程调用中引发的任何异常不应影响正在运行的任何其他线程，当所有工作完成后，我会评估异常并根据问题采取措施。
although the question is a year old, i wanted to provide an update in the event anyone comes across this question. my classes that implement Work have a member attribute that will store the Exception. I was thinking that this was going to be an issue, but it actually has worked out quite well. Any exception thrown in a threaded call shouldn't affect any other threads that are running, when all work is completed i evaluate the exceptions and take action depending on the issue.