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https://issues.apache.org/jira/browse/CASSANDRA-228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Greene updated CASSANDRA-228:
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Component/s: Core
> Improve the readability of the DBManager.instance() method
> ----------------------------------------------------------
>
> Key: CASSANDRA-228
> URL: https://issues.apache.org/jira/browse/CASSANDRA-228
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Edward Ribeiro
> Assignee: Edward Ribeiro
> Fix For: 0.4
>
> Attachments: CASSANDRA-228.patch
>
>
> The DBManager class implements the singleton pattern using a Lock object, but
> it could replace the Lock object by declaring the instance() method as
> synchronized. Therefore, it avoids the race condition (as with Lock), but
> improves the readability and reduces the size of the method. Below is the new
> version of the method:
> public static synchronized DBManager instance() throws IOException
> {
> if (dbMgr_ == null)
> dbMgr_ = new DBManager();
> return dbMgr_;
> }
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