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From "Eric Polino" <e...@campgroundautomation.com>
Subject Re: Expression string
Date Mon, 03 Mar 2008 21:05:42 GMT
I'm not using SQLTemplate, I'm using Expression.fromString()

On 3/3/08, Mike Kienenberger <mkienenb@gmail.com> wrote:
> I may very well be wrong, but don't you have to use #result macros to
>  assign specific types and values for each result in the map instead of
>  using "select *"?
>
>  From reviewing my own SQLTemplate code
>
>             "select"
>             + " #result('s.ID' 'long' 'ID'),"
>             + " #result('s.SHORT_NAME' 'String' 'SHORT_NAME'),"
>             + " #result('s.SYSTEM_ID' 'long' 'SYSTEM_ID')"
>
>
>
>
>  On 3/3/08, Eric Polino <eric@campgroundautomation.com> wrote:
>  > I'm trying to query my db with the following setup and it keep getting
>  >  Expression parsing errors
>  >
>  >       Expression exp = Expression.fromString(
>  >             "select * from SA.Site s" +
>  >             "where not exists ( "+
>  >                 "select * from SA.Reservation r " +
>  >                 "where " +
>  >                   "r.checkindate < $out and " +
>  >                   "r.checkoutdate > $in and " +
>  >                   "r.reservationType = 'S' and r.site = s.siteid" +
>  >             ") and not exists ( " +
>  >                 "select * from SA.Stay st, SA.Reservation r " +
>  >                 "where " +
>  >                   "r.checkindate < $out and " +
>  >                   "r.checkoutdate > $in and " +
>  >                   "st.site = s.siteid" +
>  >             ")");
>  >       Map params = new HashMap();
>  >
>  >       FieldPosition fp = new FieldPosition(DateFormat.DATE_FIELD);
>  >       SimpleDateFormat sdk = new SimpleDateFormat("yyyy-MM-dd");
>  >
>  >       params.put("in", sdk.format(res.getCheckInDate(), new
>  >  StringBuffer(""), fp).toString());
>  >       params.put("out",sdk.format(res.getCheckOutDate(), new
>  >  StringBuffer(""), fp).toString());
>  >       SelectQuery sq = new SelectQuery(Site.class,
>  >  exp.expWithParameters(params));
>  >
>  >       site = (Site)context.performQuery(sq).get(0);
>  >
>  >  Execution never reaches the creation of the HashMap as
>  >  Expression.fromString() always throws an exception.  The following is
>  >  the start of the logging.  It _ends_ with the exception being thrown.
>  >  There is a long stack trace that follows.
>  >
>  >  INFO  QueryLogger: --- will run 1 query.
>  >  INFO  QueryLogger: Opening connection: jdbc:derby://localhost:1527/SunriseDB
>  >         Login: sa
>  >         Password: *******
>  >  INFO  QueryLogger: +++ Connecting: SUCCESS.
>  >  INFO  QueryLogger: --- transaction started.
>  >  INFO  QueryLogger: Detected and installed adapter:
>  >  org.apache.cayenne.dba.derby.DerbyAdapter
>  >  INFO  QueryLogger: SELECT t0.cancelled, t0.checkInDate,
>  >  t0.checkOutDate, t0.confirmationCode, t0.reservationType, t0.siteType,
>  >  t0.reservationId, t0.customer, t0.site FROM SA.Reservation t0 WHERE
>  >  t0.confirmationCode = ? [bind: '32347'] - prepared in 49 ms.
>  >  INFO  QueryLogger: === returned 1 row. - took 1924 ms.
>  >  INFO  QueryLogger: +++ transaction committed.
>  >  Mar 3, 2008 3:17:36 PM com.sun.xml.ws.server.sei.EndpointMethodHandler invoke
>  >  SEVERE: [v.2.0.4 October 12 2007] Encountered "Site" at line 1, column 15.
>  >  Was expecting one of:
>  >     <EOF>
>  >     "or" ...
>  >     "and" ...
>  >     "not" ...
>  >     "!" ...
>  >
>  >  I tried using a SQLTemplate to do the same thing, but I had issues
>  >  with it figuring out what object to create (Site).  Anyone know why
>  >  I'm having this problem?  I've been hunting for a few hours and don't
>  >  know where to look now.
>  >
>  >  Thanks,
>  >  Eric
>  >
>  >
>  >  --
>  >  Eric Polino
>  >  Campground Automated Systems
>  >
>


-- 
Eric Polino
Campground Automated Systems

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