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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-5403) Clean up ColumnFamily, ISortedColumns heirarchy
Date Fri, 29 Mar 2013 16:23:15 GMT
Jonathan Ellis created CASSANDRA-5403:
-----------------------------------------

             Summary: Clean up ColumnFamily, ISortedColumns heirarchy
                 Key: CASSANDRA-5403
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-5403
             Project: Cassandra
          Issue Type: Bug
            Reporter: Jonathan Ellis
            Assignee: Jonathan Ellis


CF wraps ISC but adds no real functionality of its own (post-supercolumn cleanup).

This means that we're wasting allocations every time we create a CF/ISC pair when really one
would do.

Other things that would be nice to clean up:
# We often create an empty CF as a placeholder that should not be modified, and rely on convention
to avoid such modification.  We could enforce this with a new CF/ISC subclass.
# Many places still use TMBSC where ABSC would be adequate and cheaper
# Other places still (ModificationStatement; others?) would be fine using a column container
with no sorting requirement at all

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