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Posted to dev@onami.apache.org by "Jordan Zimmerman (JIRA)" <ji...@apache.org> on 2013/03/05 23:06:13 UTC
[jira] [Assigned] (ONAMI-97) Refactoring/generalization of Onami
LifeCycle.
[ https://issues.apache.org/jira/browse/ONAMI-97?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jordan Zimmerman reassigned ONAMI-97:
-------------------------------------
Assignee: Jordan Zimmerman
> Refactoring/generalization of Onami LifeCycle.
> ----------------------------------------------
>
> Key: ONAMI-97
> URL: https://issues.apache.org/jira/browse/ONAMI-97
> Project: Apache Onami
> Issue Type: Improvement
> Components: lifecycle
> Reporter: Jordan Zimmerman
> Assignee: Jordan Zimmerman
> Attachments: lifecycle.zip, ONAMI-97.patch
>
>
> Currently, Onami LifeCycle supports multiple post injection annotations that are
> invoked after instantiated by Guice. It also supports a Dispose container that
> holds references to injected objects whereby annotated methods will be invoked
> in reverse injection order when the user calls a container method.
> I'd like to generalize both post injection and container to support
> more open-ended features. The features are being driven by functionality in Governator.
> For post injection, Governator supports ordering of annotations. i.e. @PreConfiguration
> methods are invoked before @PostConstruct methods. For the life cycle container,
> Governator supports a @Warmup annotation and others. @Warmup methods are invoked by user
> direction after the Guice Injector has been created.
> The change to post injection is straightforward. Instead of specifying a single post
> injection annotation, an ordered list of annotations is specified. The Guice
> injection listener is modified to iterate over the annotation list in order looking
> for matching methods.
> The change to the life cycle container is more involved. For clarity, the various classes
> and methods are renamed from "Dispose*" to "Stage*". The DefaultStager (formerly DefaultDisposer)
> takes a new argument that determines if objects are processed first-in-first-out or
> first-in-last-out. The Stager interface is now parameterized with the Annotation
> that represents the "stage". The LifeCycleStageModule now binds with its parameterized
> annotation so that Stagers of each stage type can be injected. i.e.
> @Inject
> public Foo( Stager<Dispose> disposer )
>
> ...
> @Inject
> public Bar( Stager<Warmup> warmups )
>
> Obviously this is a very big change. My goal is to enhance Onami Lifecycle so that I
> can use it in Governator. I've enclosed the implementation as a zip file instead of a
> patch to make things easier to look at.
> I look forward to discussion/ideas on this!
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