[jira] [Resolved] (SLING-4589) Performance: Read properties lazily in MergedValueMap

["Joel Richard (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-4589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joel Richard resolved SLING-4589.
---------------------------------
    Resolution: Won't Fix

> Performance: Read properties lazily in MergedValueMap
> -----------------------------------------------------
>
>                 Key: SLING-4589
>                 URL: https://issues.apache.org/jira/browse/SLING-4589
>             Project: Sling
>          Issue Type: Improvement
>          Components: ResourceResolver
>    Affects Versions: Resource Merger 1.2.8
>            Reporter: Joel Richard
>              Labels: performance
>         Attachments: SLING-4589.txt
>
>
> About 4% of the rendering time is spent in MergedValueMap in ValueMapDecorator.putAll because the JcrPropertyMap has to be read fully before it can be added. Therefore, I would suggest to lazily read the properties in get(key) and merge them there.
> By the way, in my case 202 of 252 times the MergedValueMap is created only with a single value map.
> Discussion: http://mail-archives.apache.org/mod_mbox/sling-dev/201504.mbox/%3C5524D90F.7030009%40apache.org%3E 



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