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From Luís Ferreira (JIRA) <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2231) Add CompositeType comparer to the comparers provided in org.apache.cassandra.db.marshal
Date Thu, 28 Jun 2012 19:12:44 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13403376#comment-13403376
] 

Luís Ferreira commented on CASSANDRA-2231:
------------------------------------------

I've compiled it with just this patch now and I get:

{code}
Unable to find abstract-type class 'org.apache.cassandra.db.marshal.CompositeType(BytesType,BytesType)'
{code}

I check the jar and it is there, I'm using the binaries that I got from doing ant release,
am I doing this right?
                
> Add CompositeType comparer to the comparers provided in org.apache.cassandra.db.marshal
> ---------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-2231
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2231
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Contrib
>            Reporter: Ed Anuff
>            Assignee: Sylvain Lebresne
>            Priority: Minor
>             Fix For: 0.8.1
>
>         Attachments: 0001-Add-compositeType-and-DynamicCompositeType-v2.patch, 0001-Add-compositeType-and-DynamicCompositeType-v3.patch,
0001-Add-compositeType-and-DynamicCompositeType-v4.patch, 0001-Add-compositeType-and-DynamicCompositeType_0.7.patch,
CompositeType-and-DynamicCompositeType.patch, edanuff-CassandraCompositeType-1e253c4.zip
>
>
> CompositeType is a custom comparer that makes it possible to create comparable composite
values out of the basic types that Cassandra currently supports, such as Long, UUID, etc.
 This is very useful in both the creation of custom inverted indexes using columns in a skinny
row, where each column name is a composite value, and also when using Cassandra's built-in
secondary index support, where it can be used to encode the values in the columns that Cassandra
indexes.  One scenario for the usage of these is documented here: http://www.anuff.com/2010/07/secondary-indexes-in-cassandra.html.
 Source for contribution is attached and has been previously maintained on github here: https://github.com/edanuff/CassandraCompositeType

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