Radu Creanga created DELTASPIKE-293:
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Summary: Improve the ViewScopedContext by observing ServletContext
and HttpSession lifecycle events.
Key: DELTASPIKE-293
URL: https://issues.apache.org/jira/browse/DELTASPIKE-293
Project: DeltaSpike
Issue Type: Improvement
Components: JSF-Module
Affects Versions: 0.4-incubating
Reporter: Radu Creanga
Fix For: 0.5-incubating
The CDI specification states that Context implementations are responsible for
destroying instances it creates. The current ViewScopedContext relies on
PreDestroyViewMapEvents to be notified when a view map is destroyed. But, the
JSF 2.0 and 2.1 spec only fire this event when a view map is replaced. This
means that in most cases, instances created by ViewScopedContext are not
properly destroyed. The ViewScopedContext should be observing ServletContext
and HttpSession lifecycle events instead in order to ensure that all instances
it creates are properly destroyed. Visible improvements resulting out of this
would be that the @PostConstruct method of @ViewScoped beans is invoked.
Additionally, this will probably result in better memory usage, since instances
that are not properly destroyed are not eligible for GC.
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