David,
So what type is returned from this method (if you remove the cast)?
If it is still MessageType, than looks like an issue with multiple
ClassLoaders, specific to your environment. Are you running this in a
web container? What version of Cayenne is this?
Andrus
P.S. doesn't look like your address is subscribed to the list, so you
won't receive any replies not cc'd to you.
On Oct 12, 2006, at 1:52 AM, David Norwood wrote:
Hi,
I've been using DataObjects with Cayenne for several years. After
porting to
MSSQL, I'm now encountering a very strange problem. The class below
represents a table called MessageType. I access it with this call:
public static MessageType getMessageType(Integer id,
DataContext ctx)
throws
CayenneRuntimeException, Exception {
//MessageType linfo = (MessageType)
DataObjectUtils.objectForPK(ctx, MessageType.class, id.intValue());
ObjectId oid = new ObjectId
("MessageType",
MessageType.ID_PK_COLUMN, id);
//this constructor implicitly uses
"CACHE_REFRESH" policy, so a fresh object will be returned
ObjectIdQuery query = new
ObjectIdQuery(oid);
MessageType linfo = (MessageType)
DataObjectUtils.objectForQuery(ctx, query);
return linfo;
}
Both the .objectForPK() and the .objectForQuery return a
ClassCastException
on the MessageType (below); this never happened before. I can't for
the life
of me imagine what is happening.
-david norwood
Caused by: com.virtuant.mobilitee.exception.ServiceException:
com.virtuant.mobilitee.exception.ServiceException:
java.lang.ClassCastException: com.virtuant.mobilitee.db.MessageType
at
com.virtuant.mobilitee.helper.DroolsHelper.getWorkingMemory
(DroolsHelper.jav
a:85)
at
com.virtuant.mobilitee.ejb.RuleControllerBean.getUserList
(RuleControllerBean
.java:161)
... 73 more
Caused by: com.virtuant.mobilitee.exception.ServiceException:
java.lang.ClassCastException: com.virtuant.mobilitee.db.MessageType
at
com.virtuant.mobilitee.helper.DroolsHelper.getRule
(DroolsHelper.java:174)
at
com.virtuant.mobilitee.helper.DroolsHelper.getRule
(DroolsHelper.java:127)
at
com.virtuant.mobilitee.helper.DroolsHelper.getWorkingMemory
(DroolsHelper.jav
a:75)
... 74 more
Caused by: java.lang.ClassCastException:
com.virtuant.mobilitee.db.MessageType
at
com.virtuant.mobilitee.helper.DBHelper.getMessageType(DBHelper.java:
400)
at
com.virtuant.mobilitee.helper.DBHelper.getMessageType(DBHelper.java:
372)
at
com.virtuant.mobilitee.helper.DroolsHelper.getRule
(DroolsHelper.java:165)
... 76 more
package com.virtuant.mobilitee.db.auto;
import java.util.List;
/** Class _MessageType was generated by Cayenne.
* It is probably a good idea to avoid changing this class manually,
* since it may be overwritten next time code is regenerated.
* If you need to make any customizations, please use subclass.
*/
public class _MessageType extends
com.virtuant.mobilitee.common.DBObject {
public static final String FILENAME_PROPERTY = "filename";
public static final String NAME_PROPERTY = "name";
public static final String PROCESSID_PROPERTY = "processid";
public static final String URL_PROPERTY = "url";
public static final String INBOX_ARRAY_PROPERTY = "inboxArray";
public static final String OUTBOX_ARRAY_PROPERTY = "outboxArray";
public static final String TO_RULE_PROPERTY = "toRule";
public static final String ID_PK_COLUMN = "ID";
public String getFilename() {
return (String)readProperty("filename");
}
public String getName() {
return (String)readProperty("name");
}
public Integer getProcessid() {
return (Integer)readProperty("processid");
}
public String getUrl() {
return (String)readProperty("url");
}
public void addToInboxArray(com.virtuant.mobilitee.db.Inbox obj) {
addToManyTarget("inboxArray", obj, true);
}
public void removeFromInboxArray
(com.virtuant.mobilitee.db.Inbox obj) {
removeToManyTarget("inboxArray", obj, true);
}
public List getInboxArray() {
return (List)readProperty("inboxArray");
}
public void addToOutboxArray(com.virtuant.mobilitee.db.Outbox
obj) {
addToManyTarget("outboxArray", obj, true);
}
public void removeFromOutboxArray
(com.virtuant.mobilitee.db.Outbox obj)
{
removeToManyTarget("outboxArray", obj, true);
}
public List getOutboxArray() {
return (List)readProperty("outboxArray");
}
public com.virtuant.mobilitee.db.Rule getToRule() {
return (com.virtuant.mobilitee.db.Rule)readProperty("toRule");
}
