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https://issues.apache.org/jira/browse/WINK-257?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Rheinheimer updated WINK-257:
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Attachment: WINK-257.patch
Patch includes update to wink-jackson-provider's pom.xml to upgrade from
Jackson 1.2 to 1.4, which required a few test changes in the
wink-jackson-provider module.
> allow Application subclass to control provider priority
> -------------------------------------------------------
>
> Key: WINK-257
> URL: https://issues.apache.org/jira/browse/WINK-257
> Project: Wink
> Issue Type: Improvement
> Components: Server
> Affects Versions: 1.1
> Reporter: Mike Rheinheimer
> Fix For: 1.1
>
> Attachments: WINK-257.patch
>
>
> Currently, the only way to control priority order of providers that support
> the same types is to edit the wink-providers file. Priority order cannot be
> controlled in the Application subclass for a provider that is already listed
> in wink-providers. For example, if a user adds the JacksonJsonProvider from
> the Jackson project, it will take precedence over the already existing
> JsonProvider from wink-providers. Because the JacksonJsonProvider.isReadable
> method is "greedy", it will support all Object types and won't fall through
> to the JsonProvider.
> Customers may want to control this behavior programmatically. Ideally, the
> providers listed in the Application subclass should always take precedence
> over providers listed in the wink-providers file.
> I propose a change in the order of processing of the various providers list.
> Current order of processing: wink-providers, wink-application,
> getSingletons, getClasses
> Proposed change: getSingletons, getClasses, wink-providers, wink-application
> Once this change is made, a customer can list JacksonJsonProvider and
> JsonProvider in that order in their LinkedHashSet returned from getSingletons
> and have confidence that JsonProvider will be queried first.
> That's just an example scenario. I think future customers will like having
> control over the priority order of providers.
> Please see patch. The change is a one-line change in
> RestServlet.createRequestProcessor. I've had to adjust some tests, and added
> several.
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