Working set view object

Hi all,
I tried to set manually a row in a ViewObject as current with following code
ctx.getBindingContainer().findIteratorBinding("kksobjectVO").setCurrentRowWithKeyValue("100");
But I get follwing error code
oracle.jbo.InvalidOperException: JBO-25048: Operation getKeyAttributeDefs is invalid for a working set view object
Sometimes I get this error and sometimes not. How can prevent from this error.
thx

Hi Shailesh,
I called this method in Steve's
initializeModelForPage(...) method. I solved this problem by setting directly through setCurrentRow. I avoided to use the BindingContainer. Already I don't know how I can use the setCurrentRowWithKeyValue in initializeModelForPage.
In the initializeModelForPage I'm working directly with the ViewObjects. It's not the best way, but it works.
Do you know how I can work with BindingContainer methods, like setCurrentRowWithKeyValue inside the initializeModelForPage-method?
thx

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Thanks Duncan.
The ViewObject that is bound to the list is only used for the purposes of the list so there shouldn't be any problem with its state being altered elsewhere. Not sure if that's what you mean by collisions or not...
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Can someone point me to soem documentation to why I'm getting this error? I'm obviously misunderstanding something fundamental.
Thanks

I have an application module with a client method as follows:
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As you can see the above Action calls setUserCredentials(). What is driving me mad is the following. If I enter a valid username and password in the login page and reach break point one the method vo.getCurrentRow() returns null which is not what I expect!
If I re-submit my login details again, when I reach break point one for the second time vo.getCurrentRow() is not null??
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JBO-25048: Operation getAllRowsInRange is invalid for a working set view ob

I'm new to JDeveloper, so please forgive my ignorance...but I'm having a problem creating a list binding in LOV mode. After placing the list of values attribute on the jsp and making changes in the List Binding Editor, I receive the following error when I try testing the page.
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You should consider switching your application to Immediate Mode. You typically should never need to manually call the sync() method.
Here is some advice on Batch Mode versus Immediate Mode.
http://www.oracle.com/technology/products/jdev/collateral/papers/10g/adftoystore/readme.html#batchmode
Usually this error occurs if you attempt to work with an iterator binding before the prepareModel() method has been invoked in the DataAction lifecycle.
When batch mode is being used, the prepareModel() method internally batches up all the calls to execute the view objects referred to by iterator bindings in the current binding container and then syncs the operations in a single round-trip with the (either logically- or physically- separated) middle-tier application module.

Problems with the testing of querys in view objects

I am working whih view object and i like to do one query with parameters for it(all with the wizard).
The help of wizard no help me, because i write the clause where similar to the clause of the help.
the error is:
ORA-00904
Exception:java.jql.SQLException
Thank you for the attention.

Hi Lynn
Excuse me, i don't well explain my problem.
I do the query of view object with the wizard of JDeveloper 3.2. i push the 'expert mode' and 'use ? style parameters' selection, and i build the query:
SELECT EntVariable.COD,
EntVariable.NOMBRE,
EntVariable.DESCRIPCION,
EntVariable.RANGO_INFERIOR,
EntVariable.RANGO_SUPERIOR,
FROM VARIABLE EntVariable
WHERE :1 = EntVariable.NOMBRE
When i push the button of 'Test' the query appear the error:
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void oracle.jdbc.dbaccess.DBError.throwSqlException(java.lang.String, java.lang.String, int)
void oracle.jdbc.ttc7.TTIoer.processError()
void oracle.jdbc.ttc7.Oall7.receive()
void oracle.jdbc.ttc7.TTC7Protocol.doOall7(byte, byte, int, byte[], oracle.jdbc.dbaccess.DBType[], oracle.jdbc.dbaccess.DBData[], int, oracle.jdbc.dbaccess.DBType[], oracle.jdbc.dbaccess.DBData[], int)
oracle.jdbc.dbaccess.DBColumn[] oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(oracle.jdbc.dbaccess.DBStatement, byte[], oracle.jdbc.dbaccess.DBDataSet)
void oracle.jdbc.driver.OracleStatement.doExecuteQuery()
void oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout()
int oracle.jdbc.driver.OraclePreparedStatement.executeUpdate()
java.sql.ResultSet oracle.jdbc.driver.OraclePreparedStatement.executeQuery()
java.lang.Exception oracle.jbo.dt.ui.view.VOClausePanel.testSQL()
java.lang.Exception oracle.jbo.dt.ui.view.VOClausePanel.testAction()
void oracle.jbo.dt.ui.view.VOClausePanel.actionPerformed(java.awt.event.ActionEvent)
void javax.swing.AbstractButton.fireActionPerformed(java.awt.event.ActionEvent)
void javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(java.awt.event.ActionEvent)
void javax.swing.DefaultButtonModel.fireActionPerformed(java.awt.event.ActionEvent)
void javax.swing.DefaultButtonModel.setPressed(boolean)
void javax.swing.plaf.basic.BasicButtonListener.mouseReleased(java.awt.event.MouseEvent)
void java.awt.Component.processMouseEvent(java.awt.event.MouseEvent)
void java.awt.Component.processEvent(java.awt.AWTEvent)
void java.awt.Container.processEvent(java.awt.AWTEvent)
void java.awt.Component.dispatchEventImpl(java.awt.AWTEvent)
void java.awt.Container.dispatchEventImpl(java.awt.AWTEvent)
void java.awt.Component.dispatchEvent(java.awt.AWTEvent)
void java.awt.LightweightDispatcher.retargetMouseEvent(java.awt.Component, int, java.awt.event.MouseEvent)
boolean java.awt.LightweightDispatcher.processMouseEvent(java.awt.event.MouseEvent)
boolean java.awt.LightweightDispatcher.dispatchEvent(java.awt.AWTEvent)
void java.awt.Container.dispatchEventImpl(java.awt.AWTEvent)
void java.awt.Window.dispatchEventImpl(java.awt.AWTEvent)
void java.awt.Component.dispatchEvent(java.awt.AWTEvent)
void java.awt.EventQueue.dispatchEvent(java.awt.AWTEvent)
boolean java.awt.EventDispatchThread.pumpOneEvent()
void java.awt.EventDispatchThread.pumpEvents(java.awt.Conditional)
void java.awt.EventDispatchThread.run()
so i haven't code because the code not generate it,
I know that i must to ask to the Oracle service tecnical because the view object i think that is well build it, but now i can't.
sorry my english.
If you think a good idea, it is will fantastic, because i need it this 'where' on this view object.
Thank you for all.

Extra View Objects Generated?

I've generated Application Module containing view objects and links. I've got generated four view objects accesors: get<vo>, get<vo>1, get<vo>2 and get<vo>3, but in my project I do not see four view objects, but one <vo>. What happened?
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Any idea?

Hi Djorje,
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Hope this helps.
Best,
Avrom
P.S. For more on the data model:
1. Choose Help | Help Topics.
2. Navigate to
Developing Business Components
--Working With View Objects, View Links, Application Modules, and Clients
+----Understanding View Objects, View Links, and Application Modules
+------What is an Application Module
Look particularly at the section, "About Application Modules, View Objects, and Data Models."
null

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Hi,
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<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by JDev Team (Laura):
Here is how I have usually done mine:
1. In the JSP, use a RowsetNavigator bean to set the where clause and execute the query.
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<%
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%>
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<%
// initialize the app module and VO
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%>
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Hope this helps.
</jsp:useBean><HR></BLOCKQUOTE>
Laura can you give the code of your walkthru bean? i wna't to initialize a viewobject, set the where clause and give that viewobject back to initialize my navigatorbar.
Nathalie
null

Using a Custom Method to Set the Bind Parameters in a View Object

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regards

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The code works very well...
And, I'm sorry for my two repost's in UIX Forum about this in a few time.
Thank very much...
Danilo

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Hi,
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// Configurations parameters
String _cfPkg = "MyPkg"; // Configuration package name
String am = cfPkg + ".MyAppMod"; // Fully-qualified application module name
String _cf = "MyPkgAppModLocal"; // Configuration name for connection info
String IP_ADDR = "xxx.xxx.xx.xxx"; // x stands for number
String SID = "MySid";
String PORT = "xxx"; // x stands for number
/** Connection string used by front-end JSP for Jbo to obtain configuration name for
an application module **/
public String getAppConfigStr () {
// Create an instance of the application module by name, using local mode
String sAppConfigStr = am + "." + cf;
return sAppConfigStr;
(3) My data tag code:
public class PrintSelectForAllPlaces extends TagSupport {
public int doStartTag() {
ViewMyPlacesRowImpl r = new ViewMyPlacesRowImpl();
ComUtil c = new ComUtil();
ApplicationModuleRef amRef = Utils.getAMRefFromContext(pageContext, strAmId);
ApplicationModule am = amRef.useApplicationModule();
JspWriter out = pageContext.getOut();
try {
ViewObject vo = am.findViewObject("ViewMyPlaces");
if (vo != null) {
vo.executeQuery();
int j = 0;
out.println("<select name=" + strTagName + " " + strActionList + ">");
if (blnDisplayHyphen) {
out.println("<option value = '' selected>--</option>");
while (vo.hasNext()) {
r = (ViewMyPlacesRowImpl)vo.next();
String sPlaceCode = (String)r.getPlaceCode();
String sPlaceDesc = (String)r.getDescription();
out.print("<option value = '" + sPlaceCode + "' ");
System.out.println("sPlaceCode: " + sPlaceCode);
if (strDefaultValue != null) {
if (strDefaultValue.length() > 0) {
if (sPlaceCode.equals(strDefaultValue)) {
out.print("selected");
out.print(">");
out.print(sPlaceDesc);
out.println("</option>");
out.println("</select>");
} else {
out.println("View object not found! ");
} catch (JboException je) {
je.printStackTrace();
} catch (IOException ioe) {
ioe.printStackTrace();
return SKIP_BODY;
My question:
- When i run my jsp, sometimes 2 rows are retrieved, sometimes 3 row are retrieved, sometimes all are retrieved, which can be simulated by 'Refreshing' the jsp page. I feel quite upset as this affects my whole application seriously. Would anyone give me any idea about my case?
(I have tried to re-make and re-compile the project; synchronizing my table structure; and also tried vo.clearCache(); but still no use. Moreover, The retrieved resultset supposed to be a reference table which will not change frequently, which means that caching is not serious affected.)
My case is quite urgent to me. In case of any ideas, please don't hesitate to let me know.
Thanks a lot for your replies!

Dear Shailesh, would you please give me some guidelines for how to generate diagnostic outputs for BC4J? I don't know how to run the function, which may be very helpful for debugging. ^v^
Regarding the problem I mentioned, more details are listed as follows:
1. My mentioned table has 5 rows in total.
2. My expected result set has 4 rows, which is filtered by the Query statement:
- SELECT PLACE_CODE, PLACE_DESC FROM PLACES WHERE DISPLAY_FLAG = 'Y';
3. Why I know the retrieved row is not equal because the program code line in my first post for this topic:
System.out.println("sPlaceCode: " + sPlaceCode) is embedded in the loop within while (rs.hasNext()). Sometimes the output like this:
sPlaceCode: PLACE1
sPlaceCode: PLACE2
sPlaceCode: PLACE3
Sometimes like this:
sPlaceCode: PLACE1
sPlaceCode: PLACE2
4. It is in random behavior.
The situation has been improved after I have 'Test' the BC4J view, that I have navigated all records. Then, the time of displayed all expected records has been increased. Such a mystery ... What I am feeling worried is that, I can't navigate all the time for my reference tables ~~~ besides, it still shows the same problem until now.
My Requests:
1. Please give me the guidelines for generating the diagnostic output.
2. Please help to investigate my mentioned problem.
Thanks so much for your help and replies!

Error: Attribute set for field_name in view object VO_instance failed

While I try to add a new row in a table using a VO created on two EOs, it comes back with error message 'Attribute set for <field_name> in view object <VO_instance> failed' for each field I enter the data. Please suggest me if I am missing something while doing it.

Are you sure you are specifying a value for the attribute of the VO and the value of correct data type.
Also, please make sure that you have one row coming from each EO , so that the VO has one row, and a outer join is not happening.
Thanks
Tapash

Setting bind variable for a view object from the Managed Bean

Hi,
i am using JDeveloper 11g, i have to create LOV in the JSF. To show the LOV, it has to populate data using View object and its query parameter need to be sent from the Managed Bean.
For the View object i want to set the bind variable parameter from the managed bean value. bename is stored in a managed bean (session scope)
#{beantest.bename}
But it gives the following exception.
JBO-29000: Unexpected exception caught:
org.codehaus.groovy.control.MultipleCompilationErrorsException,msg=startup failed, Script1.groovy: 1: expecting '!',found '{'@ line1, column 2.
I have followed the link http://kr.forums.oracle.com/forums/thread.jspa?threadID=615474 like Frank wrote on 8.2.2008:
But steps are not clear.
How to input the VO bind parameter with Managed bean variable?
Any Help
Regards
Raj
Edited by: user9928180 on Dec 17, 2008 9:51 AM

Hi,
a bind variable in a VO needs to be exposed as an executeWithParams operation in the pageDef file. Just add a new action binding to the pageDef file (context menu) and select the executeWithParams operation on teh VO. Then in the argument field, reference the managed bean property for the value
Frank

Working set view object

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