Re: Expression string

From: Eric Polino (eri..ampgroundautomation.com)
Date: Mon Mar 03 2008 - 16:05:42 EST

  • Next message: Michael Gentry: "Re: Expression string"

    I'm not using SQLTemplate, I'm using Expression.fromString()

    On 3/3/08, Mike Kienenberger <mkienen..mail.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 <eri..ampgroundautomation.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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