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https://issues.apache.org/struts/browse/WW-1821?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Don Brown updated WW-1821:
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Fix Version/s: (was: 2.1.x)
2.2.x
> Provide mechanism to avoid instantiating Spring managed actions at startup
> --------------------------------------------------------------------------
>
> Key: WW-1821
> URL: https://issues.apache.org/struts/browse/WW-1821
> Project: Struts 2
> Issue Type: Improvement
> Components: Core Actions
> Affects Versions: 2.0.6
> Reporter: marco ocana
> Priority: Minor
> Fix For: 2.2.x
>
>
> When Spring is used as the object factory for actions, Struts 2 will
> instantiate at application load time each of the action beans defined in
> struts.xml.
> It would be very useful to to have a way to avoid this behavior, particularly
> during development. Because of dependencies defined in Spring, instantiating
> the action objects can also mean instantiating expensive resources such as
> datasources that might not be immediately needed.
> This feature can make the difference between restarting the application in 10
> seconds versus multiple minutes. Would be a big development productivity
> boost.
> It appears that the instantiation of actions occurs in the process of
> verifying struts.xml. Specifically, it checks that the classes that implement
> the actions have no-arg constructors that are public.
> In the case of the default ObjectFactory, the class defined in the
> configuration is loaded and evaluated using the reflection API. When the
> SpringObjectFactory is used however, the action implementation class is
> obtained by requesting the action bean from Spring and then getting its
> class.
> Ideally, we would examine metadata and determine the validity of the action
> definition without actually creating the action object.
> If it turns out that the verification cannot avoid instantiating actions,
> then I propose that a configuration option be provided that would
> short-circuit checking the action classes, presumably in struts.properties .
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