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From "John Bush (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-601) Greater support is needed for the use the java.util.calendar class
Date Wed, 05 Oct 2005 07:10:49 GMT
Greater support is needed for the use the java.util.calendar class
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         Key: DERBY-601
         URL: http://issues.apache.org/jira/browse/DERBY-601
     Project: Derby
        Type: Wish
  Components: Unknown  
 Environment: Win XP Pro - Java 1.5.0
    Reporter: John Bush


It appears as time goes on, the various DATE, TIME, and Timestamp classes are getting more
difficult to work with. Not that they are rocket science, but there appears to be a race to
deprecate some pretty basic functionality in the base classes that are not accounted for as
you get further away from them. 
Cases in points would be if you want to duplicate a persisted timestamp (date and time with
millisecond precision) from a dB. You can't create a natural statement such as 'Timestamp
ts = new Timestamp(rs.getTimestamp("ts"));' since the only constructor not deprecated is 'Timestamp(long
time)'. You are left with 'Timestamp ts = new Timestamp(rs.getTimestamp("ts").getTime());'
or 'Timestamp ts = (Timestamp) rs.getTimestamp("updtTstamp").clone();' (assuming a simple
object copy is appropriate and won't get bit doing a compare). It just as messy if you want
to handle creating a Timestamp to persist, you are left with 'PreparedStatement ps.setTimestamp(1,
new Timestamp(new Date().getTime()));'
I realize that this issue mostly belongs to the java.sql.* group at Sun since they have chose
not to provide anything to bridge their inheritance of deprecation, and also to the java.util.*
group at Sun for being more interested in developing java.util.calendar than deprecating sensibly.
It would be cool however if any dB vendor would take it upon themselves to provide support
to store and retrieve Calendar data types natively, just like any other non simple data types.
    Thanks for your consideration - John Bush


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