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https://issues.apache.org/jira/browse/CAY-871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrus Adamchik closed CAY-871.
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Resolution: Won't Fix
As of 3.1 DataDomain is initialized via DI, so this should not be an issue.
Moreover, implicitly creating a new EventManager is probably a bad idea as it
starts some threads that need to be shutdown. So the current DI approach is
probably the best way we can handle it.
> DataDomain instantiates with null EventManager
> ----------------------------------------------
>
> Key: CAY-871
> URL: https://issues.apache.org/jira/browse/CAY-871
> Project: Cayenne
> Issue Type: Bug
> Components: Core Library
> Affects Versions: 2.0 branch
> Environment: MacOSX 10.4, Java5, Cayenne 2.0.2
> Reporter: Emilian Bold
> Assignee: Andrus Adamchik
>
> DataDomain instantiates with an empty event manager which later leads to a
> NPE in DataRowStore.sendUpdateNotification.
> This makes the bug look as if it's a serialization issue (see
> https://issues.apache.org/cayenne/browse/CAY-796) but actually all DataDomain
> expects is something like:
> dataDomain.setEventManager(EventManager.getDefaultManager());
> This seems quite confusing for an API client as, unless you actually listen
> for events, you don't care about the EventManager and expect it to be set
> beforehand.
> Initializing DataDomain with the default manager which may be replaced at
> will via setEventManager seems like a better approach.
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