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https://issues.apache.org/jira/browse/MAHOUT-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12675975#action_12675975
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Jens Grivolla commented on MAHOUT-107:
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In order to build a MySQLJDBCDiffStorage my DataModel needs to be a
MySQLJDBCDataModel. If I just subclass AbstractJDBCDataModel this does not
work.
I do however need to change buildItem in order to have item names etc., so I
can't use MySQLJDBCDataModel, afaics. I have a table containing a list of
items with item details and want buildItem(id) to use that information instead
of just returning a GenericItem.
> make MySQLJDBCDataModel not final
> ---------------------------------
>
> Key: MAHOUT-107
> URL: https://issues.apache.org/jira/browse/MAHOUT-107
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Reporter: Jens Grivolla
> Priority: Minor
>
> Is there a particular reason for MySQLJDBCDataModel being final?
> I am using a derived class to incorporate additional information about the
> items and users (overriding buildItem etc.) and had to change my version of
> MySQLJDBCDataModel to be able to extend it.
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