[
https://issues.apache.org/jira/browse/CAY-1669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrus Adamchik closed CAY-1669.
--------------------------------
Resolution: Fixed
Fix Version/s: 3.1M4
> RuntimeProperties use of System properties becomes a contention point when
> creating query translators
> ------------------------------------------------------------------------------------------------------
>
> Key: CAY-1669
> URL: https://issues.apache.org/jira/browse/CAY-1669
> Project: Cayenne
> Issue Type: Improvement
> Components: Core Library
> Affects Versions: 3.1M3
> Reporter: Andrus Adamchik
> Assignee: Andrus Adamchik
> Priority: Minor
> Fix For: 3.1M4
>
>
> Turns out System.getProperty(String) is synchronized internally, and can
> create a global contention point for the app. DefaultRuntimeProperties is
> calling System.getProperty every time, so if we want to minimize the impact
> of this lock, we need to cache property values when we read them. A specific
> case where this happened a lot was JdbcAdapter (and subclasses)
> createEJBQLTranslatorFactory and getQualifierTranslator methods. Both of
> these methods checked for whether we have a case-insensitive collation. These
> 2 methods are used a lot, so will cache the value of the property in the
> adapter instance.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
