[jira] Commented: (STR-3168) Add dispatching support to Controller and Action configuration

["Paul Benedict (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/struts/browse/STR-3168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=45035#action_45035 ] 

Paul Benedict commented on STR-3168:
------------------------------------

The resultant work:

* Introduce new org.apache.struts.dispatcher package
* Introduce new Dispatcher interface
* Retrofit ActionDispatcher with Dispatcher interface
* Introduce new ExecuteDispatcher command into the controller that marshalls a standard set of responses
* Add dispatcher attribute to the action configuration


> Add dispatching support to Controller and Action configuration
> --------------------------------------------------------------
>
>                 Key: STR-3168
>                 URL: https://issues.apache.org/struts/browse/STR-3168
>             Project: Struts 1
>          Issue Type: New Feature
>          Components: Core, Extras
>            Reporter: Paul Benedict
>            Assignee: Paul Benedict
>             Fix For: 1.4.0
>
>
> Based on the discussions of STR-2940 and the general trend of the industry, the correct place for a framework to support dispatching is not in the Action, but as part of the Controller. The Action can do anything it wants once it has the request, but the support belongs to the framework.
> See also http://www.theserverside.com/patterns/thread.tss?thread_id=21854
> The following changes are proposed:
> * Introduce a Dispatcher interface that accepts the current ActionContext and returns an Object
> * Add @dispatch to the <action> element
> * Either modify ExecuteAction or create subclass that executes the action by delegating to the Dispatcher interface
> * Object is then marshalled into an ActionForward through a conversion process
> * Retrofit ActionDispatcher with the interface

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