[weld-issues] [JBoss JIRA] (WELD-1135) Investigate faster ways of performing type safe resolution

Mon May 14 05:11:18 EDT 2012

    [ https://issues.jboss.org/browse/WELD-1135?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12692556#comment-12692556 ] 

Jozef Hartinger commented on WELD-1135:
---------------------------------------

What I did so far in this area is a preloader that resolves observer methods for lifecycle events upfront. The performance gain is most noticeable in the SE environment where a serial classloader is used. While other threads are blocked on the classloader, preloader threads can resolve observers for ProcessAnnotatedType<X>, etc. for already loaded classes.

https://github.com/weld/core/blob/2.0/impl/src/main/java/org/jboss/weld/bootstrap/ContainerLifecycleEventPreloader.java

> Investigate faster ways of performing type safe resolution
> ----------------------------------------------------------
>
>                 Key: WELD-1135
>                 URL: https://issues.jboss.org/browse/WELD-1135
>             Project: Weld
>          Issue Type: Bug
>            Reporter: Stuart Douglas
>             Fix For: 1.2.0.CR1
>
>
> At the moment quite a lot of bootstrap time is spent resolving injection points and events. By far the majority of this time is spent resolving container events that form part of the portable extensions SPI. As these events are parameterised types the resolution cannot be cached (as ProcessAnnotatedType<ClassA> can resolve differently to ProcessAnnotatedType<ClassB> ). 
> We should investigate if there is a faster way to do this, if not in the general case then at least for these container events.

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