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https://issues.apache.org/jira/browse/FELIX-2737?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard S. Hall closed FELIX-2737.
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Resolution: Fixed
Assignee: Richard S. Hall
Committed a patch.
> [Framework] Optimize resolver algorithm by not re-calculating uses
> constraints for resolved modules
> ---------------------------------------------------------------------------------------------------
>
> Key: FELIX-2737
> URL: https://issues.apache.org/jira/browse/FELIX-2737
> Project: Felix
> Issue Type: Improvement
> Components: Framework
> Affects Versions: framework-3.0.6
> Reporter: Richard S. Hall
> Assignee: Richard S. Hall
> Fix For: framework-3.2.0
>
>
> To determine package space consistency, the resolver algorithm must calculate
> the package space of each module involved in the resolve operation. Since the
> resolver algorithm is stateless, it ends up re-calculating package spaces of
> resolved modules again and again. One of the more time consuming aspects of
> package space calculation is determining "uses" constraints, since they are
> transitive. The current algorithm re-calculates "uses" constraints for both
> resolved and resolving bundles. However, the "uses" constraints are only
> necessary for determining if a resolving bundle's package space is
> consistent; a resolved bundle's package space is consistent by definition
> (unless it is performing a dynamic import). Therefore, the resolver could be
> optimized by only calculating the "uses" constraints of resolving (and
> dynamically importing) bundles and not doing so for resolved bundles.
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