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Posted to dev@sling.apache.org by "Rob Ryan (JIRA)" <ji...@apache.org> on 2013/05/23 20:59:19 UTC

[jira] [Created] (SLING-2881) [I18N][Performance] JcrResourceBundleProvider clears the cache on mix:language changes

Rob Ryan created SLING-2881:
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             Summary: [I18N][Performance] JcrResourceBundleProvider clears the cache on mix:language changes
                 Key: SLING-2881
                 URL: https://issues.apache.org/jira/browse/SLING-2881
             Project: Sling
          Issue Type: Bug
          Components: Extensions
    Affects Versions: i18n 2.2.4
         Environment: CQ5.6
            Reporter: Rob Ryan


Performance of an appplication using Sling i18n JcrResourceBundleProvider suffers drastically if nodes with mixin type mix:language are modified frequently.

The reason for the performance degradation is that JcrResourceBundleProvider registers a JCR event listener for node types: mix:language and sling:Message. It then clears the i18n resource bundle cache whenever a node with these types appears in an event.

The JCR 2.0 spec indicates applications should use a mix:language type as the standard way to provide a property specifying the natural language which the content of a  node is expressed.

Therefore clearing the resource bundle cache on a change to *any* node with a mix:language type is inappropriately broad.



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