TreeTable Selection Listener Issue

I have a treeTable and i have used custom selection Listener instead of using bindings.<viewObject>.treeModel.makeCurrent. since i had to do more than just makeCurrent on selection, i choose this approach. Everything is working except, when i refresh the treeTable after create, the activeRow will be first row but selection shows on where i have last selected.
My custom selectionListener is working very fine but i have noticed that when i refresh treeTable selectionListener is never called. but only called when i make selection... Is there anyway i can get my custom selectionListener be called on refresh of treetable or is there any other way i can control selection on fresh of treeTable.
It will be highly appreciated if you can suggest me way.
Thanks

Thanks Timo for the reply. I have a customization to select the second row of the tree table by default. I am customizing the 'selectedRowKeys' value to achieve this default selection. It works fine for the first time.
In the below scenario it's is not working,
1. Select a row other than default selected
2. After some action i am refreshing the table, now the focus(highlight) is on the previous selected row but actually the selectedkey is second row(Scenario1)
This my tree table structure,
Revision 0
- - - - Scenario1
- - - - Scenario2
- - - - Scenario3
Revision 1
- - - - Scenario 4
- - - - Scenario 5
- - - - Scenario 6
Thanks,
Nagesh

Similar Messages

Issue with Selection Listener when the table has only one row

Hi All ,
I have developed a table in which I am using Selection Listener to perform some task when any row is selected.
It is working fine when I have more than 1 row in the table, but when I have only one row in the table , the selection listener do not call the corresponding method in bean.
I understand that selection event will be raised only when the row is changed, but in the use case when only one row is there, what should be done to make the selection listener work ?
In the selection listener I have written code to make the selected row as current row , and perform the required task.
Please suggest a way out for this situation.
Thanks in advance.

Hi,
try removing this attr from table
selectedRowKeys="#{bindings.xxx_VO1.collectionModel.selectedRow}"

Custom Selection Listener not getting fired

I am using JDeveloper 11.1.1.4 and have been trying to follow the advice given in the ADF Code Corner example 68. The only difference in my application/project, is that I am trying to develop the master table on a page fragment with a task flow attached for the JSFF containing the detail table. My master table on the primary JSFF has a custom selection listener on it. When testing the deployed package--putting the primary task flow on a JSPX page, the tables are showing, but when I select a different row on the master table, the new row is highlighted but nothing happens to execute the custom listener. I am sure of this because I've added a System.out.println as the very first line in it and it doesn't put the message out. I am getting no errors on the weblogic logs. I looked on the client side's html output and can't see anything that would trigger that a change occurred to send back to the server. Any ideas (outside of upgrading to another version of Jdeveloper) would be greatly appreciated. I am not sure if providing any of my code would be of any help in this issue.

Thanks to all who responded. I have multiple rows showing in my master table and when I select a different row, I get no event that executes my method. I tried adding the "binding.itterator." to the EL for the SelectionListener and that didn't work either. Besides both the examples in the ADF Code Corner 23 and 68 show it just as "class.method" as I have it. A small snippet from my table is below:
          <af:table value="#{bindings.HOT_trans_sumVO1.collectionModel}"
                    var="row" rows="#{bindings.HOT_trans_sumVO1.rangeSize}"
                    emptyText="#{bindings.HOT_trans_sumVO1.viewable ? 'No data to display.' : 'Access Denied.'}"
                    fetchSize="#{bindings.HOT_trans_sumVO1.rangeSize}"
                    rowBandingInterval="0"
                    selectedRowKeys="#{bindings.HOT_trans_sumVO1.collectionModel.selectedRow}"
                    *selectionListener="#{HotTransSummBean.onTxnSummTblRowSelect}"*
                    rowSelection="single" id="txnsummtbl"
                    columnStretching="last" width="100%" autoHeightRows="5"
                    contentDelivery="whenAvailable" immediate="true"
                    clientComponent="true" first="0">Also note that I have this backing bean defined on the task flow as a requestScope as it is in the example 68--example 23 does not state a scope level. Again, my method starts out with an output statement that never gets executed:
    public void onTxnSummTblRowSelect(SelectionEvent selectionEvent) {
      System.out.println("Entered onTxnSummTblRowSelect method.");

Can't get child node in tree selection listener

I am making a fusion web application using JDeveloper 11G (11.1.1.2.0).
I have created two view objects linked together. Let's call them VoDepartments and VoEmployees, linked on DepartmentId.
I hava made a tree with a af:switcher
<af:switcher id="s1" facetName="#{node.hierType.structureDefName}">
<f:facet name="view.VoDepartments">
<af:outputText value="#{node}" id="ot1"/>
</f:facet>
<f:facet name="view.VoEmployees">
<af:outputText value="#{node}" id="ot2"/>
</f:facet>
</af:switcher>I made a selection listener based on a guide by Frank Nimphius
RichTree tree1 = (RichTree) selectionEvent.getSource();
RowKeySet rks2 = selectionEvent.getAddedSet();
Iterator rksIterator = rks2.iterator();
if (rksIterator.hasNext()){
List key = (List)rksIterator.next();
JUCtrlHierBinding treeBinding = null;
treeBinding = (JUCtrlHierBinding) ((CollectionModel)tree1.getValue()).getWrappedData();
JUCtrlHierNodeBinding nodeBinding = nodeBinding = treeBinding.findNodeByKeyPath(key);
String nodeStuctureDefname = nodeBinding.getHierTypeBinding().getStructureDefName(); //Here is the nullpointerexception for employees
String employees = "view.VoEmployees";
String departments = "view.VoDepartments";
if (nodeStuctureDefname.equalsIgnoreCase(departments)){
   String dept = (String) nodeBinding.getAttribute("Department_name");
   System.out.println("Department = "+dept);
else if (nodeStuctureDefname.equalsIgnoreCase(employees)){
   String emp = (String) nodeBinding.getAttribute("First_name");
   System.out.println("Employee = "+emp);
else{
   //what the heck did the user click on? Ask him ;-)
}Pagedef:
Executables:
<iterator Binds="VoDepartments2" RangeSize="25" DataControl="AppMainDataControl" id="VoDepartments2Iterator"/>
Bindings:
<tree IterBinding="VoDepartments2Iterator" id="VoDepartments2">
<nodeDefinition DefName="view.VoDepartments" Name="VoDepartments20">
<AttrNames>
   <Item Value="DepartmentId"/>
</AttrNames>
<Accessors>
   <Item Value="VoEmployees"/>
</Accessors>
</nodeDefinition>
<nodeDefinition DefName="view.VoEmployees2" Name="VoDepartments21">
<AttrNames>
   <Item Value="First_name"/>
   <Item Value="Last_name"/>
</AttrNames>
</nodeDefinition>
</tree>The tree works just fine and list all it should list. I can click the department and my selection listener print the departments name in the console.
I can expand a department and list all employees. The problems is when I click an employee, I get null pointer exception.
I have found out that the selectin listener can't find nodeBiding for employees. So nodeBinding.getHierTypeBinding().getStructureDefName(); throw NullpointerException.
Anyone have an idea of what's wrong? Please help.
-Thomas
Edited by: Thomas H on Mar 22, 2010 8:21 AM

Hi,
if you open the tree binding editor, it has an entry "Target Data Source" for each of the node levels that you can use and point to an iterator binding representing the node. Not sure if this solves the issue, but chaces are.
1. create an iterator for a child VO (using the not dependent child VO instance)
2. Edit Target Data Source for the binding to e.g. ${bindings.EmployeesView1Iterator}
Frank

Getting NullPointerException in ADF form using Custom Selection Listener

Hi,
I am getting NullPointerException from getRowKey() in GenericTableSelectionHandler.java while pressing "Page Down" key or continuous pressing of "Down Arrow" key in Read Only ADF form (Query, Sort Enabled) using Custom Selection Listener.
I have used the custom selection listener as mentioned at http://www.oracle.com/technetwork/developer-tools/adf/learnmore/23-generic-table-selection-listener-169162.pdf
The requirement to use custom Selection Listener to populate some fields from the selected row.
J Developer Version: 11.1.1.4.0
The error is as below
+<LifecycleImpl> <_handleException> ADF_FACES-60098:Faces lifecycle receives unhandled exceptions in phase INVOKE_APPLICATION 5+
javax.el.ELException: java.lang.NullPointerException
+     at com.sun.el.parser.AstValue.invoke(Unknown Source)+
+     at com.sun.el.MethodExpressionImpl.invoke(Unknown Source)+
+     at org.apache.myfaces.trinidad.component.UIXComponentBase.broadcastToMethodExpression(UIXComponentBase.java:1300)+
+     at org.apache.myfaces.trinidad.component.UIXTable.broadcast(UIXTable.java:268)+
+     at oracle.adf.view.rich.component.UIXTable.broadcast(UIXTable.java:144)+
+     at oracle.adf.view.rich.component.rich.data.RichTable.broadcast(RichTable.java:402)+
+     at org.apache.myfaces.trinidad.component.UIXCollection.broadcast(UIXCollection.java:148)+
+     at org.apache.myfaces.trinidad.component.UIXTable.broadcast(UIXTable.java:271)+
+     at oracle.adf.view.rich.component.UIXTable.broadcast(UIXTable.java:144)+
+     at oracle.adf.view.rich.component.rich.data.RichTable.broadcast(RichTable.java:402)+
+     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)+
+     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)+
+     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)+
+     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:102)+
+     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent$1.run(ContextSwitchingComponent.java:92)+
+     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent._processPhase(ContextSwitchingComponent.java:361)+
+     at oracle.adf.view.rich.component.fragment.ContextSwitchingComponent.broadcast(ContextSwitchingComponent.java:96)+
+     at oracle.adf.view.rich.component.fragment.UIXInclude.broadcast(UIXInclude.java:96)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.broadcastEvents(LifecycleImpl.java:879)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:312)+
+     at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:185)+
+     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)+
+     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)+
+     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)+
+     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)+
+     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:205)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)+
+     at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:446)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:271)+
+     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:177)+
+     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.adf.library.webapp.LibraryFilter.doFilter(LibraryFilter.java:175)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:111)+
+     at java.security.AccessController.doPrivileged(Native Method)+
+     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)+
+     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:413)+
+     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:94)+
+     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:161)+
+     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:136)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)+
+     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)+
+     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)+
+     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)+
+     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)+
+     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)+
+     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)+
+     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)+
+     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)+
+     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:207)+
+     at weblogic.work.ExecuteThread.run(ExecuteThread.java:176)+
Caused by: java.lang.NullPointerException
+     at ibm.view.GenericTableSelectionHandler.makeCurrent(GenericTableSelectionHandler.java:48)+
+     at ibm.view.backing.Testpage.XxSelectListener(Testpage.java:207)+
+     at sun.reflect.GeneratedMethodAccessor355.invoke(Unknown Source)+
+     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)+
+     at java.lang.reflect.Method.invoke(Method.java:597)+
+     ... 60 more+
The table structure is as below for your reference
+<af:table value="#{bindings.TestTableAdfView1.collectionModel}"+
var="row"
+rows="#{bindings.TestTableAdfView1.rangeSize}"+
+emptyText="#{bindings.TestTableAdfView1.viewable ? 'No data to display.' : 'Access Denied.'}"+
+fetchSize="#{bindings.TestTableAdfView1.rangeSize}"+
+rowBandingInterval="0"+
+filterModel="#{bindings.TestTableAdfView1Query.queryDescriptor}"+
+queryListener="#{bindings.TestTableAdfView1Query.processQuery}"+
+filterVisible="true" varStatus="vs"+
+rowSelection="single"+
+binding="#{backingBeanScope.backing_testpage.t1}"+
+id="t1"+
+selectionListener="#{backingBeanScope.backing_testpage.XxSelectListener}">+
Any help to resolve the issue is highly appreciated.
Thanks,
Arijit
Edited by: user10570755 on Aug 2, 2011 11:19 PM

//selection with the selection in the ADF model Object
_selectedRowData = _table.getSelectedRowData();
//cast to JUCtrlHierNodeBinding, which is the ADF object //that represents a row
JUCtrlHierNodeBinding _nodeBinding = (JUCtrlHierNodeBinding) _selectedRowData;
//get the row key from the node binding and set it //as the current row in the iterator
Key _rwKey = _nodeBinding.getRowKey();i guess nodeBinding becoming null here.. _table.getSelectedRowData().. is not returnign anything

Sender JDBC Adapter Select/Update Issue

Dear All,
We have configured a Sender JDBC Adapter to Poll data from the DB2 tables. It is working fine and both the select and the update queries written are also getting properly executed and are changing the status of the flag from Y to N once read from database.
In the communication channel ->
select * from <table> where flag = 'N'.
update <table> set flag = 'Y' where flag = 'N'.
But I have one doubt after executing the select query some new data comes into the table of status flag 'N"., then will this unselected data will also be updated to 'Y' .
The question is while we do a select and update from XI on the DB table and at the same time there is an insert happening into the table from the other end how will the adpater behave in this case.Will it result in missing of some records during next select/update transaction from XI..
Your inputs will be appreciated.
Regards
Amit

Amit
Did you ever get a solution to your question ?
Sender JDBC Adapter Select/Update Issue
Posted: Apr 24, 2008 2:29 PM Reply
Dear All,
We have configured a Sender JDBC Adapter to Poll data from the DB2 tables. It is working fine and both the select and the update queries written are also getting properly executed and are changing the status of the flag from Y to N once read from database.
In the communication channel ->
select * from <table> where flag = 'N'.
update <table> set flag = 'Y' where flag = 'N'.
But I have one doubt after executing the select query some new data comes into the table of status flag 'N"., then will this unselected data will also be updated to 'Y' .
The question is while we do a select and update from XI on the DB table and at the same time there is an insert happening into the table from the other end how will the adpater behave in this case.Will it result in missing of some records during next select/update transaction from XI..
Your inputs will be appreciated.
Regards
Amit

Creating a generic selection listener for af:table

Hi,
I'm using JDeveloper 11.1.1.5.0, and I have a simple requirement to set up a custom selection listener for an af:table component.
So far, I was doing this by using a custom function to invoke the EL to perform the makeCurrent operation. However, I came across Frank Nimphius' PDF on how to build a generic selection listener, and this seemed like a better way to go about it. The problem is, the CollectionModel class used in the sample code is now deprecated. Is anyone aware of the currently supported way to implement a generic selection listener?
Thanks,
Gill

this snap shot of the code i write it to get the current employee id whcich is selected
    public void select(SelectionEvent selectionEvent) {
        // Add event code here...
         RichTable _table = (RichTable)selectionEvent.getSource();
         CollectionModel _tableModel = (CollectionModel)((RichTable)selectionEvent.getSource()).getValue();
        JUCtrlHierBinding _adfTableBinding = (JUCtrlHierBinding)_tableModel.getWrappedData();
        DCIteratorBinding _tableIteratorBinding = _adfTableBinding.getDCIteratorBinding();
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        Object _selectedRowData = _table.getSelectedRowData();
        JUCtrlHierNodeBinding _nodeBinding =
            (JUCtrlHierNodeBinding)_selectedRowData; //get the row key from the node binding and set it //as the current row in the iterator
          Key _rwKey = _nodeBinding.getRowKey();
          _tableIteratorBinding.setCurrentRowWithKey( _rwKey.toStringFormat(true));
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Selection listener

i have written a bean in the selection listener of an af:table... but this does not get called on pageload
I am refreshing a region which contains child records... based on the selection of a particular record in the af:table
How to call this one on pageload. after pageload when i select the master records it works well... but on pageload my method doesnt get called and all records are coming

Hi,
you can queue a SelectionListener from Java
SelectionListener selListener = new SelectionListener(...,...,...);
selListener.queue();So if you find a method that is invoked on page load (e.g. phaseListener on f:view) then this can be used
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Problem getting the Table Data with the selection listener

Hi All,
I am working on a tree and table components. I wrote a logic in the backing bean in such a way that when I expand a node the child nodes for the tree are getting added dynamically and also getting the data in the table for the node expanded in the tree using the same Toplink Query . I added the selection listener for the table and when I am selecting a row in the table I am getting the Null Pointer Exception as the RowKeySet Value for the row selected is coming null.
Can any one please help me out with this problem
I will be very thankful
Regards,
Madhavi.

Hi All,
I am working on a tree and table components. I wrote a logic in the backing bean in such a way that when I expand a node the child nodes for the tree are getting added dynamically and also getting the data in the table for the node expanded in the tree using the same Toplink Query . I added the selection listener for the table and when I am selecting a row in the table I am getting the Null Pointer Exception as the RowKeySet Value for the row selected is coming null.
Can any one please help me out with this problem
I will be very thankful
Regards,
Madhavi.

Adding selection listener

How do I add a Selection listener to the cancel button in a Windows file open window??

Are you using FileDialog or JFileChooser?

Tree selection listener problem

I have a JTree which uses a selection listener.
I encounter a problem when I collapse a row while a leaf has focus.
My program doesn't hang but so many error messages scroll up my prompt.
How can I resolve this problem?
Thanks!

try to capture the error messages. If you are unable to get them from standard output, try redirecting to a file like:
prompt>java samp > xwhere samp is your class file and x is the file your output is redirected to. After you collapse the leaf that has focus, close the application and open the file 'x'. Copy and paste the errors here.
I'll see what I can do!

Stop auditing select statements issued against SYS objects

Hi,
My current client has a requirement to track destructive updates (i.e. insert, update, delete) issued by users who can connect directly to the database. At the moment though, SELECT statements issued against SYS-owned objects are also being captured to the Oracle audit trail. For the time being at least these need to be disabled.
I've issued NOAUDIT SELECT TABLE/SEQUENCE and NOAUDIT SELECT ANY TABLE/SEQUENCE commands, as has a user with the SYSDBA privilege, and they're still being logged. Is there any way to switch these off? I don't know if it's significant (I'm not a DBA by trade) but the audit_sys_operations parameter is set to True.
My client is currently running Oracle Database 10.2.0.5.0 standard edition.
If anyone has any suggestions I'd be grateful.
Thanks in advance,
Steve

Hi,
Thanks for the input so far ...
@Eduardo and KarK ...
show parameter audit
audit_file_dest string D:\ORACLE\PRODUCT\10.2.0\ADMIN\USSUPM2\ADUMP
audit_sys_operations boolean TRUE
audit_trail string DB, EXTENDED
If we set audit_sys_operations to FALSE, won't that stop auditing of all actions carried out by, for example, someone who connects as SYSDBA? That is something that's still needed to be captured. Unfortunately they go to the WIndows Event Log but at least they're captured somewhere.
@Hemant
This auditing was in place before my client took me on, so I can't say what was used to initiate it unfortunately. What I can say though is that they absolutely don't want to turn off auditing by SYS- type users, just SELECT against SYS-owned objects.
Thinking simplistically, could I just write a script which trawls dba_objects for sys-owned tables, views and sequences and explicitly issues a noaudit select against what's found, and get one of the sysdba-type people we have access to to run it?
Thanks in advance (again)
Steve

Af:Table retains rows selected and selection listener doesnt work

Hi
I have a table with a list of objects passed to it to be rendered. When the user selects an object and clicks on the launch button above the table, it launches a new page and on the new page when the user clicks on cancel it brings back to the same page where the table is present. While coming back to this page, the row that was earlier selected by the user is highlighted and a click on the same row doesnt enable the selection listener. I have to click on some other row and then click the old row if I want to relaunch the old page
<af:table var="row" rowBandingInterval="0" id="tblProcedures" emptyText="#{dbProcedureMsg.TABLE_EMPTY_TEXT}"
summary="#{dbProcedureMsg.TABLE_SUMMARY_TEXT}"
value="#{pageFlowScope.db_provisioning_DeploymentProcedurePageModel.collectionModel}" filterVisible="false"
columnStretching="column:colDescription" rowSelection="single" width="99.7%"
selectionListener="#{pageFlowScope.db_provisioning_DeploymentProcedurePageModel.processSelection}">
There is one more table which behaves the same way. But other tables which are part of my application work correctly.
Any idea on what I might be doing wrong ?
Thanks in advance

Hi,
To be honest Million rows in excel its questionable for me
I would try to find alternate solution rather than killing ADF on client and then your DBA will call you for a urgent meeting. Even if you make it work with ADF, people will not going use it due to huge amount of data load.
What you can do is to call external report like Jasper, BIRT etc. etc. and provide option there to export to Excel based on your criteria (but million rows is again questionable)
OR
one idea is to give option at client side to request a report with button at af:TABLE toolbar ...then you can schedule a job at database server level using PL/SQL dbms_scheduler package with OS script to generate text file on server and FTP it to some machine.
Hope it help,
ZB

Tree - Selection listener

I have a af:tree on Dynamic tab shell, in that tree I have a selection listener property, Let us consider three nodes on the tree, Link1, Link2, Link3.
When I hit the Link1 means Taskflow 1 renders on the right side, same as hitting Link2 means Taskflow2 renders.
I can close the taskflow by using launchActivity.
My problem is, I can hit the Link1 which renders TaskFlow1, Now i am closing the taskflow, again i am hitting Link1 without refreshing, the corresponding Taskflow is not opening.
Once i refresh i can open the link1 again.
Please help me to come across it.
Thanks.
-Arunkumar Kootharasan
Edited by: Arunkumar Kootharasan on Oct 11, 2012 6:45 PM

hi,
Thanks for your reply,
"What does this mean ? Why don't you use dynamic regions to switch between task flows in which case a task flow is closed when you switch to another one exposed in the region"
"This is what i meant launchActivity means"- below code snippet
private void launchActivity(String title, String taskflowId, boolean newTab)
try
TabContext tabContext = TabContext.getCurrentInstance();
int tabIndex = tabContext.getSelectedTabIndex();
System.out.println("selected :" +tabIndex);
if (tabIndex != -1)
System.out.println("Tab Removed");
tabContext.removeTab(tabIndex);
System.out.println("selected has:" +tabIndex);
TabContext.getCurrentInstance().addOrSelectTab(title,taskflowId);
catch (TabContext.TabOverflowException toe)
// causes a dialog to be displayed to the user saying that there are
// too many tabs open - the new tab will not be opened...
toe.handleDefault();
" Why don't you use dynamic regions to switch between task flows in which case a task flow is closed when you switch to another one exposed in the region"
Yes i'm using Dynamic region. I forget to say this, and i also switching between one to another regions .
"What does "without refreshing" mean? If you just exit the task flow without showing a new one then you will have to refresh the region and ensure its re-instantiating the task flow"
Without refreshing in the sense manually refreshing the browser. If i manually refresh means its working fine.
So, Without manually refreshing the browser, i want to refresh the region.
How can i achieve it?
-Arun

JPopupMenu selection listener

Hello,
I need to get a notification when the user hovers the mouse over the menu items of a popup menu, so that I could display some help in the status bar.
I also have to do this for a JComboBox.
Do you have any ideas? I can not find a proper listener. I thought that the PopupMenuListener will do the job but is very limited.
It there a way to do this? Or did anyone put this as a RFE?
Thank you!

You'd still have to add a "selection listener" instance to every component you want to know about, just like you would with a mouse listener. In fact, you can very simply make one:
public class SelectionListener extends MouseAdapter {
   private HashMap map = new HashMap();
   private StatusComponent status = null;
   public SelectionListener(StatusComponent sc) {
      status = sc;
   public void addComponent(Component c, String msg) {
      c.addMouseListener(this);
      map.put(c, msg);
   public void mouseEntered(MouseEvent e) {
      String msg = map.get(e.getSource());
      if(msg != null) { status.setStatus(msg); }
   public void mouseExited(MouseEvent e) {
      status.clearStatus();
}I'll leave it to you to create a StatusComponent class and figure out how to use this.

TreeTable Selection Listener Issue

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