[fdo-trac] #97: SDF Scrollable Reader continuous loop

[FDO]

#97: SDF Scrollable Reader continuous loop
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   Reporter:  brentrobinson  |       Owner:  brentrobinson
       Type:  defect         |      Status:  new          
   Priority:  minor          |   Milestone:  3.3.0        
  Component:  SDF Provider   |     Version:  3.3.0        
   Severity:  3              |    Keywords:               
External_id:                 |  
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 The reader returned by the SDF Extended Select command can be used for
 forward retrieval by calling ReadNext(). When the reader reaches the end
 of the results set, ReadNext() returns false as expected. However, if a
 subsequent call is made to ReadNext(), it returns true, and the reader is
 positioned back to the first row in the results set.

 The above can lead to infinite loops in applications. However, this is a
 minor problem since the application has to ignore the ReadNext() that
 returned false to get into this situation. Regardless, this would be easy
 to fix. When ReadNext() returns false, subsequent ReadNext() calls would
 also return false, until the reader is re-position by calls to
 ReadPrevious(), ReadAt(), etc.

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Ticket URL: <http://trac.osgeo.org/fdo/ticket/97>
FDO <http://fdo.osgeo.org/>
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