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From "Edward Ribeiro (JIRA)" <>
Subject [jira] Created: (CASSANDRA-228) Improve the readability of the DBManager.instance() method
Date Sun, 14 Jun 2009 14:50:07 GMT
Improve the readability of the DBManager.instance() method

                 Key: CASSANDRA-228
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Edward Ribeiro

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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