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From "Daniel John Debrunner (JIRA)" <derby-...@db.apache.org>
Subject [jira] Closed: (DERBY-404) org.apache.derby.iapi.store.access.RowUtil.isRowEmpty has (never exercised) bug
Date Thu, 13 Oct 2005 18:38:06 GMT
     [ http://issues.apache.org/jira/browse/DERBY-404?page=all ]
Daniel John Debrunner closed DERBY-404:

> org.apache.derby.iapi.store.access.RowUtil.isRowEmpty has (never exercised) bug
> -------------------------------------------------------------------------------
>          Key: DERBY-404
>          URL: http://issues.apache.org/jira/browse/DERBY-404
>      Project: Derby
>         Type: Bug
>   Components: Store
>     Reporter: Daniel John Debrunner
>     Assignee: Daniel John Debrunner
>     Priority: Trivial
>      Fix For:

> isRowEmpty() has a bug where if a colum list is passed in it will return true rather
than false for a non-empty row. However the method is never called with a non-null column
> One fix would be to remove the parameter columnList, but that leaves a method that is
reallt just a check for the array reference being null  or of zero length [then the method
could be generalized to any array type].
> An alternate fix would be change the api for the methods that call this utility to only
accept non-null references. Callers that previously passed in null would pass in the constant
RowUtil.EMPTY_ROW. This would remove the need to call isEmptyRow and remove the amount of
branching. Sanity checks could be added for passing in null, or will just implicity be there
as the array will be referenced and throw an NPE.

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