newbie q: Criteria for java.util.Date

[Raoul Markus]

Hi,

I tried the following code, but this query didn't return any hits:

public static Collection getSessionsOfDay(DBConnector pDbconnector,Date 
pDateHeld, String pUser) {
...
                tCrit.addEqualTo("DATE_HELD", pDateHeld);
...
                Query tQuery = new QueryByCriteria(SDBSession.class, tCrit);
}





and I had to replace it by the following (which works, but is no good):


public static Collection getSessionsOfDay(DBConnector pDbconnector,Date 
pDateHeld, String pUser) {
...
                // TODO: this date operations  are not nice...
                Calendar tCal = Calendar.getInstance();
                tCal.setTime(pDateHeld);
                // make a string like "2003-8-29", which is recognized by mysql
                String tDateStr = "" + tCal.get(Calendar.YEAR) + "-" + 
(1+tCal.get(Calendar.MONTH)) + "-" + tCal.get(Calendar.DAY_OF_MONTH);  
                tCrit.addEqualTo("DATE_HELD", tDateStr);
...
                Query tQuery = new QueryByCriteria(SDBSession.class, tCrit);


in mysql (3.23.55-log), the column is defined as DATE and holds to my opinion 
only the day (not the time). the java.util.Date of course has the exact time, 
maybe this causes the null result?

But with the tDateStr I am no longer independend of the db (i.e. which date 
strings it recognizes). 

any tips, thoughts?

Thanks in advance.

-- 
Raoul Markus
PGP key available from servers


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