Updateable ViewObject Throws Error When Column Set To Null

Question

I have an updateable ViewObject that has not changed since it was created. In JDeveloper 9.0.3 I was able to pass a node with a null value into the ViewObject, post the changes, and the underlying table was updated without incident. We are upgrading the tools we use which includes JDeveloper. We need to clear the values (set them to null) in certaincircumstances. What is the secret to it? Either I have not set a parm properly or the code was malformed at the start (I did not create the initial code).
The column to be updated is UpdatedBy.
Original code - row.setUpdatedBy(null);
Attempted change - row.setAttribute("UpdatedBy",null);
Neither worked and threw the following:
oracle.jbo.domain.DataCreationException: JBO-25009: Cannot create an object of type:java.math.BigDecimal with value:
UpdatedBy is a BigDecimal type and the database column is NUMBER(9, 0). Nulls are allowable.
All help is appreciated.
Thanks,
pdr
Additional info:
The original code works fine under 9.0.3 but not under 9.0.5.
Column can be updated using the connect PrepareStatement and passing the update SQL.
Message was edited by:
pdreaiii

Answer 1

I am now able to update the column using the setAttribute. Weird that it is now but not before.
Still having an issue with inserting/updating rows using XML. Here is the XML node we are pushing to the ViewObject - the UpdatedBy child node was created with a null value:
<AssessmentLockViewRow>
<WorkerId>1236</WorkerId>
<AsmtId>1593730</AsmtId>
<SynchLock>N</SynchLock>
<UpdatedBy>
</UpdatedBy>
</AssessmentLockViewRow>
This was created using the following (trimmed for space:
//start code
//create the Node for persistance
XMLHelper helper = new XMLHelper(SECOND_CHILD);
try {
helper.addNode(SECOND_CHILD, "WorkerId", workerId);
helper.addNode(SECOND_CHILD, "UpdatedBy", updatedBy); // can be null
} catch (NodeNotFoundException e) {
error(CLASS_NAME, METHOD_NAME, e);
throw new EventException(e);
Node rowToAdd = helper.getRootNode();
ApplicationModule am = _appMod;
ViewObject vo = am.findViewObject(VIEW_OBJECT);
Row r = vo.first();
// r.setAttribute("UpdatedBy",updatedBy);
vo.readRowXML((Element)rowToAdd, 0);
am.getTransaction().validate();
am.getTransaction().postChanges();
//end code
The app module was created using
_appMod = (ApplicationModule)Configuration.createRootApplicationModule(
APP_MODULE, APP_MODULE_CONFIG, envInfo);
the envInfo is the user information.
Do I have something wrong here? I think I am doing something wrong but can't spot it.
Thanks.