Just checked this in to 3.0 branch (with Modeler support):
https://issues.apache.org/cayenne/browse/CAY-800
so you'll be able to do this for instance:
sqlTemplate.setColumnNamesCapitalization
(SQLTemplate.UPPERCASE_COLUMN_NAMES)
Andrus
On Jun 5, 2007, at 2:38 PM, Andrus Adamchik wrote:
Yeah, capitalization mismatch between the default DB behavior and
your mapping can bite you when you use "select *". You may have to
use the "#result" directive to describe all your columns:
http://cayenne.apache.org/doc/scripting-sqltemplate.html
Since this is a pretty common and annoying problem (and presuming
that most users do follow some naming convention in mapping their
case-insensitive DB), I wonder if we should add a simple fix - two
methods in a SQLTemplate - "setUppercaseColumnNames",
"setLowercaseColumnNames"? Anybody has thoughts on that? Or is
there some JDBC way to achieve the same with "SELECT *" queries?
Andrus
On Jun 5, 2007, at 8:33 AM, Marcin Skladaniec wrote:
Hi everyone
I'm having some troubles with SQLTemplate. The one I use is fairly
simple:
SQLTemplate query = new SQLTemplate(Student.class, "select * from
Student WHERE isDeleted = 1");
the student entity is defined by :
<db-entity name="Student">
<db-attribute name="studentNumber" type="BIGINT"/>
... some other fields here ...
<db-attribute name="id" type="INTEGER" isPrimaryKey="true"
isMandatory="true"/>
</db-entity>
<obj-entity name="Student"
className="ish.oncourse.server.cayenne.Student"
dbEntityName="Student"
superClassName="ish.oncourse.server.cayenne.glue.CayenneDataObject" >
<qualifier><![CDATA[(isDeleted = null) or (isDeleted = 0)]]></
qualifier>
<obj-attribute name="studentNumber" type="java.lang.Long" db-
attribute-path="studentNumber"/>
... some other fields here ...
<obj-attribute name="id" type="java.lang.Integer" db-attribute-
path="id"/>
</obj-entity>
When the query is performed an exception is raised:
[java] org.apache.cayenne.CayenneRuntimeException: [v.$
{project.version} ${project.build.date} ${project.build.time}]
Null value for 'id'. Snapshot: [EMAIL PROTECTED]
[values={STUDENTNUMBER=5, (Other fields in here, all in upper
case), ID=241}, version=-9223372036854775761,
replaces=-9223372036854775808]. Prefix: null
[java] at
org.apache.cayenne.access.ObjectResolver.createObjectId
(ObjectResolver.java:280)
[java] at
org.apache.cayenne.access.ObjectResolver.objectFromDataRow
(ObjectResolver.java:206)
[java] at
org.apache.cayenne.access.ObjectResolver.objectsFromDataRows
(ObjectResolver.java:120)
[java] at
org.apache.cayenne.access.ObjectResolver.synchronizedObjectsFromDataR
ows(ObjectResolver.java:100)
[java] at
org.apache.cayenne.access.DataDomainQueryAction.interceptObjectConver
sion(DataDomainQueryAction.java:433)
[java] at
org.apache.cayenne.access.DataDomainQueryAction.execute
(DataDomainQueryAction.java:124)
[java] at org.apache.cayenne.access.DataDomain.onQuery
(DataDomain.java:722)
[java] at
org.apache.cayenne.intercept.DataChannelCallbackInterceptor.onQuery
(DataChannelCallbackInterceptor.java:74)
[java] at
org.apache.cayenne.util.ObjectContextQueryAction.runQuery
(ObjectContextQueryAction.java:282)
[java] at
org.apache.cayenne.access.DataContextQueryAction.execute
(DataContextQueryAction.java:59)
[java] at org.apache.cayenne.access.DataContext.onQuery
(DataContext.java:1321)
[java] at
org.apache.cayenne.access.DataContext.performQuery
(DataContext.java:1310)
[java] at
org.apache.cayenne.intercept.ObjectContextDecorator.performQuery
(ObjectContextDecorator.java:98)
[java] at
ish.oncourse.server.services.DataPopulationService.runService
(DataPopulationService.java:688)
[java] at ish.oncourse.server.services.Service.run
(Service.java:174)
[java] at java.lang.Thread.run(Thread.java:613)
What is wrong ? Why when all my field properties are set to
lowercase (like "id") the SQLTemplate returns a DataRow with only
capital letters ?
I have to use the SQLTemplate since my model defines a qualifier
"<qualifier><![CDATA[(isDeleted = null) or (isDeleted = 0)]]></
qualifier>" and I actually want to fetch the records with
isDeleted=1. I tried different ways to waive the constraint on the
data like:
ObjEntity studentEntity = new ObjEntity
("ish.oncourse.server.cayenne.Student");
Expression exp = studentEntity.getDeclaredQualifier();
studentEntity.setDeclaredQualifier(null);
SelectQuery selectQuery = new SelectQuery(studentEntity);
studentEntity.setDeclaredQualifier(exp);
but nothing worked. Did someone achieve it ?
Thanks
Marcin
-------------------------->
ish
http://www.ish.com.au
Level 1, 30 Wilson Street Newtown 2042 Australia
phone +61 2 9550 5001 fax +61 2 9550 4001
