On Sep 3, 2008, at 7:05 PM, Owen McKerrow wrote:
Hi All,
Updating an old application and have come across a very weird
situation. Code which was working fine 2 days ago now produces an
error. So I made the simplest test case I could and yet I still get
the error.....
GeneralInfo gi =
(GeneralInfo)EOUtilities.objectWithFetchSpecificationAndBindings(ec,
"GeneralInfo", "find", new NSDictionary());
gi.setUpdaterRunning(new Integer(3));
ec.saveChanges();
which produces the following SQL and error message
....
11:58:39,855 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) -
evaluateExpression: <com.webobjects.jdbcadaptor.OraclePlugIn
$OracleExpression: "SELECT t0.client_id, t0.common_rules,
t0.general_info, t0.menu_Message, t0.updater_running FROM
GENERAL_INFO t0 WHERE t0.client_id = ?" withBindings: 1:2(client_id)>
11:58:39,863 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) - 1
row(s) processed
11:58:39,864 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) - ===
Commit Internal Transaction
11:58:39,881 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) - ===
Begin Internal Transaction
11:58:39,881 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) -
evaluateExpression: <com.webobjects.jdbcadaptor.OraclePlugIn
$OracleExpression: "SELECT t0.client_id, t0.common_rules,
t0.general_info, t0.menu_Message, t0.updater_running FROM
GENERAL_INFO t0 WHERE t0.client_id = ? FOR UPDATE" withBindings:
1:2(client_id)>
Are you using Vertical Inheritance? If so, I think this can produce
this FOR UPDATE. Or maybe it is an EOF in concert with VI.
Otherwise, something is messed up in your model or code and making EOF
confused. What has changed in the last two days? svn log -verbose is
your friend here
11:58:39,893 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) - 1
row(s) processed
11:58:39,898 DEBUG [Thread-1] (Log.NSLogDebug:1546 appendln) - ===
Rollback Internal Transaction
11:58:39,898 DEBUG [Thread-1] (Main:187 doUpdate) -
updateStatementForRow: qualifier may not be null
11:58:39,934 OFF [Thread-1] (Log.NSLogErr:1546 appendln) -
EXCEPTION:
updateStatementForRow: qualifier may not be null
That looks like there is no PK or locking on all columns has been
turned off or something dreadful like that. Give that model a close
once over.
DATE/TIME:
2008-09-04 01:58:39 Etc/GMT
null
STACK TRACE:
at
_exceptionWithDatabaseContextInformationAdded(EODatabaseContext.java:
4685)
at performChanges(EODatabaseContext.java:6393)
at saveChangesInEditingContext(EOObjectStoreCoordinator.java:415)
at saveChanges(EOEditingContext.java:3226)
at doUpdate(SyncUtil.java:114)
at run(SyncUtil.java:81)
I don't understand why it wants to fetch the GeneralInfo object from
the database again? And I don't think I have ever seen SQL "FOR
UPDATE" which is tacked onto the end of the second select statement.
Can anyone suggest what may be going on and why ?
Hopefully the above will shed some light.
Chuck
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their
overall knowledge of WebObjects or who are trying to solve specific
problems.
http://www.global-village.net/products/practical_webobjects
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