Issue in finding the current row

I am rendering rows of a VO using an iterator component. One of the component I am rendering is a declarative component created by me.
In this component there is a clickable link on which i can write any method to achieve desired functionality.
Since, iterator is used so the current row is set to the last row. Now on clicking the link in the declarative component i need to do some operation based on the current row (pk of that row). So, how to find the current row id?
Note: If it would be a simple adf component like a commandLink i could have inserted a setServerListener inside it and could have put the id in to requestScope to access it. But as this is the declarative component in which i cannot create a serverListener so I am looking for some other solution.

Hi john,
My table have the selection listener.
Thanks in advance

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Losing the current row without doing anything

I using 10g and my page have a VOR (viewobject readonly) to control form data but...
I'm losing several times the current row ... for example I put this code in a button:
public String clickAction() {
AdminUCAtoCartorarioAMImpl am = null;
try {
am = ( AdminUCAtoCartorarioAMImpl )super.getApplicationModule( "AdminUCAtoCartorarioAMDataControl" );
am.getAmbienteEscaninhoVOR().getCurrentRow(); //Here, sometimes brings me null.
} catch (Exception e) {
e.printStackTrace();
return null;
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User,
You give us the symptom of the problem, but
I'm losing several times the current rowdoesn't help anyone to help you pinpoint what might be the cause. Under what circumstances does the current row come across as null? Are you manually iterating through the VO's row set somewhere? What happens before the current row is "lost?" What specific version (your tag indicates 10g, but specifically which version) of JDeveloper/ADF are you using? Does this occur only when deployed, or does it occur when running in the embedded OC4J.
One thing for you to try... if it occurs "sometimes," seemingly randomly under load, try turning off Application Module Pooling and re-test. If it occurs every time with pooling turned off, you are likely seeing some issue related to passivation/activation - which is why it would be critical to mention the exact version; there are known issues with specific versions, and there are patches available.
John

How to handle the current row with radio button selection???

Hi Everyone,
I have one ADF page with one table and one "Find" button.
I have created one new attribute with VARCHAR2(1) in the VO and dragged that attribute as first column in the table. And changed that first column to Radio Button to select only one row at a time.
Upon clicking on the "Find" button i need to get the values of current selected row.
How can i get the values of selected row?
What code should i write to get the values of selected row in Method Binding of "Find" button?
Any suggestions will be really useful.
Thanks.

Hello Kumar,
I have some comments on your case.
>
I have created one new attribute with VARCHAR2(1) in the VO
>
1- You should create this attribute in the Entity object and then add it to the view object.
2- Do you need that only one radio button is set at a time for all rows ? If yes then you need to handle the case when the user set more than one row and clear the value of the attribute for all other rows.
>
How can i get all the values of current row in backing bean method(method binding of Find method)?
can u plz provide me the code for that?
>
If you mean by the current row is that the row with its value of the selected attribute is set (the radio button is set for that row), then you can write a method in the viewObjectImpl class and expose it to client interface and call it from your bean.
here is an example based in Department table in HR schema.
//This method is written in DepartmentsViewImpl
public Row getSelectedRadioRow(){
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            DepartmentsViewRowImpl row=null;
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            return row;
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ORA-20001: The current row is locked

Hi Team
I find below mentioned error message in my log table .Please can you suggest why we are getting this error .
Some time back we had our OS migration from one server to another ,can it be related to that as we have noticed this error message after such migration.
Please suggest what can be done in order to avoid such error.
ERROR IN hr_person_api.update_person api failed -step4 -ORA-20001: The current row is locked
Cause:        You are trying to lock a row in the per_people_f table which is currently being locked by another user.
Action:        Re-query and attempt to lock the row again
ERROR IN hr_assignment_api.update_emp_asg API - STEP8.2 - ORA-20001: The current row is locked
Cause:        You are trying to lock a row in the per_all_assignments_f table which is currently being locked by another user.
Action:        Re-query and attempt to lock the row again.
Regards
Anima

Hi Everyone
Can anyone help me with this .Why we are getting this error and how can it be handled.
Please suggest what can be done in order to avoid such error.
ERROR IN hr_person_api.update_person api failed -step4 -ORA-20001: The current row is locked
Cause:        You are trying to lock a row in the per_people_f table which is currently being locked by another user.
Action:        Re-query and attempt to lock the row again
ERROR IN hr_assignment_api.update_emp_asg API - STEP8.2 - ORA-20001: The current row is locked
Cause:        You are trying to lock a row in the per_all_assignments_f table which is currently being locked by another user.
Action:        Re-query and attempt to lock the row again.

How to Finding the Last Row Value in Datagrid?

Hi Everyone,
Thanks in Advance.
I need your help, to find the last row data in Datagrid.
Actually i am using Datagrid to display my Data in flex. In my data i stored the gender value of employees. So if the last row in my datagrid is "female" i need to be highlight that particular row. So please help me to solve this issue.
Thanks,
Charles. J

datagrid.selectedIndex = datagrid.dataprovider.length;
^ something like this will select the last row in the datagrid.
if you need to check it's value, you might need to cast an object here, based on the index value, and check it's gender value.
datagrid.selectedIndex = datagrid.dataprovider.length;
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Maintain the current row position of a table after refresh.

Hi,
I use a poll to refresh tables continuously. when a table is refreshed, the current referring row is reset.
To maintain the current row position after a refresh I use the following poll method.
public void refreshTableT1(PollEvent pollEvent) {
FacesContext fctx = FacesContext.getCurrentInstance();
ValueBinding dcb = fctx.getApplication().createValueBinding("#{bindings}");
DCBindingContainer bindings1 = (DCBindingContainer) dcb.getValue(fctx);
DCIteratorBinding dciter = bindings1.findIteratorBinding("<VOIterator>");
if(dciter!=null){
if(dciter.getCurrentRow()!=null){
Key current_row_key = dciter.getCurrentRow().getKey();
dciter.executeQuery();
if(current_row_key!=null){
try{
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System.out.println("Exception in current_row_key");
}This works for normal tables well. But when I use it to master-detail tables (pair of tables) it does not.
At the master-detail tables, before the first data fetch, it works well. if we go below the first data fetch, it sets the current row into another position.
how can I overcome this...??
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Hi Mr.Frank,
I have an association in two VOs.
for example: There are 2 tables called Emp and Dept. Every Department has Employees. so there is an association (both tables have a common column). Master table is the Dept table. when you click on one record of the Dept table Detail table will show the details of the employees belongs to that selected department. That's what I referred as master-detail tables. first one is master table; second one is detail table.
When the web page loads all the table data is not fetched from the db (it will depend on the fetch size). when we scroll down the table data fetch happens again and again.
think my data fetch size is 25 rows per time.
Suppose we use mine poll method and think I have clicked on the 20 ^th^ row of table1(master table). then the table2 will display details belongs to selected department. that is OK even after refresh. that works well.
when I go to 30 ^th^ row data fetch will happen (my fetch size = 25)
when I click on the 30 ^th^ row of the table1(master table), table2 will display details belongs to selected department. but after the poll method is called the selected row at the table1 disappears and is set to another position. now the 30 ^th^ row is not in the 30 ^th^ position. but it is the selected row and table2 displays correct details.
I think you have got the problem now. :D
Thanks a lot.
Dinuka.

Is there a way to make the current row not editable

Hi, I'm using JDev 11.1.1.2
In my usecase I have a Form , navigateable with next/previous , and for every row a I have a calculation which makes the row editable or not.
For now I made it with disabled property on every input component set to some bean property which is calculated every time.
My question is if there is some general way to make an Entity not updateable ?
I tried with doDML() ... but the problem there is that this method is not called when switching the current row but rather when commiting. So the user can modified several rows and when pressing commit it will prevent some of the to be committed which would be confusing.
Is there a method in the ViewObject that i can overwrite which is called every time the current row is changed? So I can see if the row was modified or not.
Thanks, agruev

Yes, there is always isAttributeUpdateable() in the ViewRowImpl, which you can override and enable/disable your attributes based on an enabling/disabling condition.
Here is an example:
public boolean isAttributeUpdateable(int i) {
boolean updateable = false; /disable by default all arguments
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Nick

Fetch the current row in executeQueryForCollection

Here is what I have:
Master-detail-detail
VO1
--VO2 via VO1VO2Link
-----VO3 via VO2VO3Link
I am editing or creating new record in VO3 (Say UIX input form) but want to implement 'rollback' button and go back to the CURRENT row in VO2 (WITHOUT RESETING ITERATORS!!!!!!!). For the sake of this thread let's just say that the process of doing this is extremely frustrating and that I have to debug certain things so my idea was to take a look into the WHATEVER is the CURRENT row in executeQueryForCollection of VO2:
//in VO2ViewImpl.java
protected void executeQueryForCollection(Object qc, Object[] params, int noUserParams)
    // TODO: Override this oracle.jbo.server.ViewObjectImpl method
    Row currentRow = this.getCurrentRow();
    if (currentRow != null)
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//    if (o!=null)
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        //System.out.println("val[0]= " + o[1]);
        //System.out.println("val[0]= " + o[6]);
        //System.out.println("val[0]= " + o[8]);
}My application breaks at Object[] o = currentRow.getAttributeValues();
for some reason? Why???
The error displayed is:
JBO-26100: An error occurred after commit was performed.
The bottom line question is what is the current query in executeQueryForCollection?

Here is what I have:
Master-detail-detail
VO1
--VO2 via VO1VO2Link
-----VO3 via VO2VO3Link
I am editing or creating new record in VO3 (Say UIX input form) but want to implement 'rollback' button and go back to the CURRENT row in VO2 (WITHOUT RESETING ITERATORS!!!!!!!). For the sake of this thread let's just say that the process of doing this is extremely frustrating and that I have to debug certain things so my idea was to take a look into the WHATEVER is the CURRENT row in executeQueryForCollection of VO2:
//in VO2ViewImpl.java
protected void executeQueryForCollection(Object qc, Object[] params, int noUserParams)
    // TODO: Override this oracle.jbo.server.ViewObjectImpl method
    Row currentRow = this.getCurrentRow();
    if (currentRow != null)
       Object[] o = currentRow.getAttributeValues();
//    if (o!=null)
        //System.out.println("val[0]= " + o[0]);
        //System.out.println("val[0]= " + o[1]);
        //System.out.println("val[0]= " + o[6]);
        //System.out.println("val[0]= " + o[8]);
}My application breaks at Object[] o = currentRow.getAttributeValues();
for some reason? Why???
The error displayed is:
JBO-26100: An error occurred after commit was performed.
The bottom line question is what is the current query in executeQueryForCollection?

Change the current row in an iterator and reflect the change on page

Hi there,
I have a jspx with a creation form created as usual draging and droping the data control. In same page, I inserted a commandButton which ActionListener executes a method in a managed bean called validate(). Through such a method what Im trying to do is to fill the form with data from specified entry of the database if certain condition is true. I know it is kinda twisted but unfortunately is the requirement for the page.
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keyValues[0] = "1"; keyValues[1] = "98543";
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dciter.setCurrentRowWithKey(client.getKey().toStringFormat(true));
dciter.executeQuery();
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All this works perfectly when I debbug it but I cannot see the changes in the page(even refreshing browser). I need that when such a condition is met, the creation form turns into a modify-specific entry form, filling all fields with the specific data in order user can modify it, and all in the same page.
Any clue?
Thanks so much in advance for your time.

Hi,
I could see the problem with call to executeQuery and execute methods at the end of your method which re-sets the current row.
Once you set the current row you should not call execute or executequery methods. Try removing those calls and also make sure that you have added partialTriggers property on the table is set to commandbutton id and partialSubmit property is set to true on commandButton to refresh the table partially on click of a button
Sireesha

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