Hi Eric,
Lot of stuff going on in that query. Did you run a test query to made
sure it works without Cayenne? Just to make sure it's not Derby having
some issues with the subqueries.
Fredrik Liden
ENLASO Corp.
-----Original Message-----
From: Eric Polino [mailto:eri..ampgroundautomation.com]
Sent: Monday, March 03, 2008 1:30 PM
To: use..ayenne.apache.org
Subject: Expression string
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
This archive was generated by hypermail 2.0.0 : Mon Mar 03 2008 - 15:52:39 EST