Hi Ricardo,
Resurrecting a 2.5 year old thread here, but I just became aware that we're
having the same problem (with an obviously infrequently-used feature).
Did you ever learn anything more about this? Did setting that
oracle.jdbc.LobStreamPosStandardCompliant property result in any strange or
undesirable behavior?
Thanks,
- Patrick
On May 11, 2010, at 4:47 PM, Ricardo J. Parada wrote:
>
> To simplify things, in a nutshell, the new oracle 11g driver has this logic:
>
> if (pos == 518630185893888L)
> {
> if (lobStreamPosStandardCompliant)
> {
> throw
> DatabaseError.createSqlException(getConnectionDuringExceptionHandling(), 68);
> }
>
> ...
> }
>
> and the old oracle 10g driver looks like this:
>
> if (pos == 518630185893888L)
> {
> return new OracleBlobOutputStream(blob, chunkSize);
> }
>
>
> So I looked at the lobStreamPosStandardCompliant i-var in the oracle driver
> and I noticed that it is being initialized from the
> oracle.jdbc.LobStreamPosStandardCompliant property which defaults to true.
> So if I set the property to false in my Properties file like this:
>
> oracle.jdbc.LobStreamPosStandardCompliant=false
>
> then the 11g driver works fine.
>
> But it makes me nervous setting this property. Anyways, I'm just putting
> this out here to see if anybody has an idea of what this is.
>
>
>
>
>
> On May 11, 2010, at 3:35 PM, Ricardo J. Parada wrote:
>
>> On May 11, 2010, at 1:34 PM, Chuck Hill wrote:
>>
>>>
>>> On May 11, 2010, at 8:57 AM, Ricardo J. Parada wrote:
>>>
>>>>
>>>> We upgraded ORACLE to 11g and so I switched to the 11g driver. But now we
>>>> started getting these exceptions:
>>>>
>>>> [2010-05-11 07:31:24,579] ERROR
>>>> com.webobjects.eoaccess.EOGeneralAdaptorException: Invalid argument(s) in
>>>> call
>>>> at
>>>> com.webobjects.eoaccess.EODatabaseContext._exceptionWithDatabaseContextInformationAdded(EODatabaseContext.java:4504)
>>>> at
>>>> com.webobjects.eoaccess.EODatabaseContext.performChanges(EODatabaseContext.java:6216)
>>>> at
>>>> com.webobjects.eocontrol.EOObjectStoreCoordinator.saveChangesInEditingContext(EOObjectStoreCoordinator.java:376)
>>>> at
>>>> com.webobjects.eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:3192)
>>>> at er.extensions.eof.ERXEC._saveChanges(ERXEC.java:1085)
>>>> at er.extensions.eof.ERXEC.saveChanges(ERXEC.java:1007)
>>>> ...
>>>>
>>>> I suspect it is related to BLOB fields because it happens right after EOF
>>>> issues SQL to insert into a table with a BLOB field. The SQL looks
>>>> something like this:
>>>>
>>>> INSERT INTO MIME_CONTENT(DEFAULT_DOWNLOAD_FILE_NAME, MIME_TYPE,
>>>> CREATION_DATE, MIME_CONTENT, MIME_CONTENT_ID) VALUES (?, ?, ?,
>>>> EMPTY_BLOB(), ?)" withBindings:
>>>> 1:"BasicAdHocReport.csv"(defaultDownloadFileName),
>>>> 2:"text/comma-separated-values"(mimeType), 3:2010-05-11
>>>> 11:17:00(creationDate), 4:496737(mimeContentID)
>>>>
>>>> SELECT t0.MIME_CONTENT FROM MIME_CONTENT t0 WHERE t0.MIME_CONTENT_ID = ?
>>>> FOR UPDATE" withBindings: 1:496737(mimeContentID)
>>>
>>>
>>> SELECT ... FOR UPDATE usually means that WO has gotten totally confused.
>>> It should probably be doing something like
>>> UPDATE MIME_CONTENT SET MIME_CONTENT = .... where MIME_CONTENT_ID = 496737
>>>
>>> See http://www.google.ca/search?q=SELECT+%22FOR+UPDATE%22+webobjects&;
>>>
>>> Often this indicates a difference between your prototypes and the name /
>>> case of the data type that the JDBC driver is returning.
>>
>> The field is defined as follows in the eomodel:
>>
>> {
>> columnName = "MIME_CONTENT";
>> externalType = BLOB;
>> name = mimeContent;
>> valueClassName = NSData;
>> },
>>
>> It's not using a prototype but I checked ERPrototypes' definition of the
>> blob prototype for ORACLE and it seems that this is setup right.
>>
>> It has always seemed weird to me that I don't see an UPDATE MIME_CONTENT SET
>> MIME_CONTENT = ... WHERE MIME_content_id = 496737 like you mentioned.
>> However, the SQL looks the identical with the old driver except that no
>> exception is thrown and the field in the database ends up with the blob in
>> there.
>>
>> I noticed that the exception class is EOGeneralAdaptorException and it has a
>> userInfo dictionary. So I peeked at that and I see more info that shows a
>> stack trace with line numbers inside the oracle driver. It shows the
>> exception happening at line #4388 in the newOutputStream(BLOB blob, int
>> chunkSize, long pos, boolean zeroInvalid method. And in JD-GUI it seems
>> that for that to happen pos is a really large number and zeroInvalid &
>> lobStreamPosStandardCompliant return true. ( I didn't know a bitwise and
>> with a boolean was a valid expression in java... :-/)
>>
>> public OutputStream newOutputStream(BLOB blob, int chunkSize, long pos,
>> boolean zeroInvalid)
>> throws java.sql.SQLException
>> {
>>
>> ...
>>
>> if (pos == 518630185893888L)
>> {
>> if ((zeroInvalid & this.lobStreamPosStandardCompliant))
>> {
>> ...
>>
>> java.sql.SQLException __ex__ =
>> DatabaseError.createSqlException(getConnectionDuringExceptionHandling(), 68);
>> 4388: __ex__.fillInStackTrace();
>> throw __ex__;
>> }
>>
>> …
>>
>> }
>>
>>
>>>
>>>
>>> Chuck
>>>
>>>
>>>>
>>>>
>>>> Switching to the old driver makes the exception go away. Any wild guess
>>>> if this is an EOF problem or a driver problem?
>>>>
>>>> For reference, the version of the oracle jdbc driver is 11.2.0.1.0.
>>>>
>>>> Thanks for any help,
>>>> Ricardo
>>>>
>>>>
>>>> _______________________________________________
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>>>
>>> --
>>> 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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