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Jonathan Ellis commented on CASSANDRA-2893: ------------------------------------------- ... which means we would have the option to clone on read, instead of the persistent collections which essentially clone on write. > Add row-level isolation > ----------------------- > > Key: CASSANDRA-2893 > URL: https://issues.apache.org/jira/browse/CASSANDRA-2893 > Project: Cassandra > Issue Type: Improvement > Reporter: Jonathan Ellis > Assignee: Sylvain Lebresne > Priority: Minor > > This could be done using an the atomic ConcurrentMap operations from the > Memtable and something like http://code.google.com/p/pcollections/ to replace > the ConcurrentSkipListMap in ThreadSafeSortedColumns. The trick is that > pcollections does not provide a SortedMap, so we probably need to write our > own. > Googling [persistent sortedmap] I found > http://code.google.com/p/actord/source/browse/trunk/actord/src/main/scala/ff/collection > (in scala) and http://clojure.org/data_structures#Data Structures-Maps. -- 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