Invoke task flow from backing bean?

Hi,
Is there a way to invoke task flow from a backing bean? If yes, how?
Thanks in advance

Thanks Frank. I am not an expert with ADF so please bear with me if my questions doesn't make sense. Basically what I am trying to achieve is this.
I have a taskflow and I am currently in a ui page which displays a page fragment inside this task flow. In this page, on click of a button, I need to call another task flow and show it in a adf popup. Is this the case referred in the pdf document that you pointed out?
Thanks

Similar Messages

Can we call a task-flow from a bean in adf?

Sir,
Can we call a task-flow from a bean in adf?
Regards

you can do this using taskflow call activity
check - Oracle ADF World: ADF Task Flow Call Activities
http://docs.oracle.com/cd/E24382_01/web.1112/e16182/taskflows_activities.htm#ADFFD21945
you can pass input parameter map and dynamic taskflow reference from managed bean
check -https://blogs.oracle.com/DavidGiammona/entry/dynamically_assign_task_flow_c
Or if you want to use dynamic region to swich between taskflows
see- Zeeshan Baig's Blog: Working with Dynamic Regions in Oracle ADF
Ashish

Button Actions are not working -invoking task flow from other project regio

Hi
I have a project using a mani.jspx file having a regions and the region is updated with different views based on a router condition in my bounded task flow. Everything working fine with in the project. I have a seperate project in my application having an index.jspx and region in it. I created the ADF lib jar file of the first project and imported to this project. I could invoke the task flow in the first project to the region in the index.jspx file in the seconed project.But none of the action managed bean method attached to the buttons in this view are working.The methods are not getting called on clicking on button and no error in the backend console of Integrated weblogic server.Any body can help what could be the issue ?
Thanks
Suneesh

The issue that is happening when I refreshed the region with task flow from the project I imported.If I load the taskflow from the imported project on first time rendering all my managed bean actions are executing but if I load a different flow initially and change the taskflow Id imported from other project none of the managed actions are working.
Thanks
Suneesh

Call bounded task flow from managed bean

Hi experts,
can we call a bounded task flow from a managed bean?
if yes , please explain.....
Thankz in advance
PMS

Hi john,
Thankz for ur reply........sorry if im asking stupid questions.
this is my tree selection handler
public void treeSelectionHandler(SelectionEvent selectionEvent) {
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);
DCIteratorBinding _treeIteratorBinding = null;
_treeIteratorBinding = treeBinding.getDCIteratorBinding();
JUIteratorBinding iterator = nodeBinding.getIteratorBinding();
String keyStr = nodeBinding.getRowKey().toStringFormat(true);
iterator.setCurrentRowWithKey(keyStr);
JUCtrlHierTypeBinding typeBinding = nodeBinding.getHierTypeBinding();
String targetIteratorSpelString = typeBinding.getTargetIterator();
if (targetIteratorSpelString.equals("${bindings.Iascat1View1Iterator}"))
System.out.println("Tree Selected*************"+targetIteratorSpelString);*
else
if(targetIteratorSpelString.equals("${bindings.Iascat2View1Iterator}"))
*System.out.println("Tree Selected**************"+targetIteratorSpelString);*
else
*System.out.println("Tree Selected**************"+targetIteratorSpelString);*
I hav bounded task flow for each iterator for creating new record......i hav to replace code for calling bounded task flow instead of printing statement
PMS

Invoking binding operation from backing bean -- no data displayed in ADF table ?

Hello experts, I have data control derived from Web Service proxy client. In this data control, I have multi record list derived from web service call.In my ADF page, I have bunch of input components with many drop down lists and radio buttons, check boxes etc.
Finally I want to transfer user input to   data control.   In my ADF page, I have mapped the result set of data conrol to ADF table.
When I click submit button, the   input data from ADF page is passed to data control operation.   In the bean method, I am making use of   operationBinding.execute() and operationBinding.getParamsMap().put().     I see it is fetching data by checking getResult().
I am invoking partial trigger also on the table. However, table is not getting populated with the data.
please help me.     Jdeveloper verion is 11.1.1.6.     I have set "Refresh" attribute to "never" for iterator in the bindings tab.    But no luck. I see that control coming to data control and calling web service and getting the data and then it comes back to my bean method submit() and I see that getResult() is showing records fetched.   But why the table on ADF page is not showing the data ?
thanks a lot in advance.

I still not able to get my table updated with data. If I set   "Refresh" to "ifNeeded", soon after coming out of submit method of bean, it again tries to execute the web service call in the data control and brings empty result since the search parameters are empty. I do not know why it goes again to data control method.    So, when I hit submit button, the bean method calls operationBidnding.execute() and before this I set the parameters also.    After execute(), addPartialTarget() gets executed and it comes out of submit.   At this time, it is supposed to go to ADF page. But I see that it tries to execute method in data control with empty parameters.   This is ridiculous.    It neither works with "never", nor with "ifNeeded".
I see many forums on this issue but no solution found...all those forums are not answered. This looks like it is a bug in ADF table not able to refresh from managed bean !!!!
thanks

Problem while invoking popup from backing bean

I am invoking a popup from backing bean method.
The same backing bean method has the business logic which depends on the data collected from popup(user enters some data on popup).
So I need the business logic to be executed after popup comes up.
The popup is coming after the execution of return statement in backing bean method . How do i make popup trigger at earlier point in the method.
<af:commandToolbarButton text="#{corePostupgradeuiBundle.SIGN_OFF_MIG}"
id="socb52"
partialSubmit="true"
actionListener="#{viewScope.signoffBean.signOffAgents}"
partialTriggers="t3"/>
public void signOffAgents(ActionEvent event) throws SQLException {
DCBindingContainer bc =
(DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
DCIteratorBinding summaryIter =
bc.findIteratorBinding("Signoff1Iterator");
showPopup("credentials"); //will get credential details from user and store in credential Bean
//Following logic uses the data collected from popup
EMCredentialReference credRef= credentialBean.getCredReference();
submitJOb(credRef);
public static void showPopup(String popupId) {
FacesContext context = FacesContext.getCurrentInstance();
StringBuilder script = new StringBuilder();
script.append("AdfPage.PAGE.findComponent(\"").append(popupId).append("\").show();");
ExtendedRenderKitService erks =
Service.getService(context.getRenderKit(),
ExtendedRenderKitService.class);
erks.addScript(context, script.toString());
UIComponent component = context.getViewRoot().findComponent(popupId);
RequestContext.getCurrentInstance().addPartialTarget(component);
}

Well, your work flow is wrong.
What you try to accomplish should work out of the box as
1) user hit toolbar button
2) this opens a popup "credentials" which have listeners for ok and cancel
3) use fills in data in popup and hit ok or cancel
4) one of the listeners gets fired
5a) if OK listener you do your business logic
5b) if cancel you do something else
So all you have to do is the use a af:af:showPopupBehavioron the toolbar button, add a popup canel listener (if you need to act on canel) dependign on your popup design (dialog or simple button) add the appropriate listeners and in the listener method so your business logic.
Timo

How can i call a taskflow methode from backing bean ??

Build JDEVADF_11.1.1.3.PS2_GENERIC_100408.2356.5660
i like to call a Methode (taskflow) from backing bean!
my bean code :
    public void imageLinkActionListner(ActionEvent actionEvent) {
        String              id      = actionEvent.getComponent().getId();
        int                 linkID = Integer.parseInt(id.substring(4));
        DCBindingContainer bc      = (DCBindingContainer)ADFUtils.getBindingContainer();
        DCTaskFlowBinding   tf      = null;
        System.out.println("Region Change...."+id+" INT "+linkID);
        switch (linkID) {
            case LINK_CALENDAR_REGION:
                tf = (DCTaskFlowBinding)bc.findExecutableBinding("calendartaskflowPage");
            break;
            case LINK_MAIL_REGION:
                tf = (DCTaskFlowBinding)bc.findExecutableBinding("mailtaskflowPage");
            break;
          case LINK_ADDRESS_REGION:
              tf = (DCTaskFlowBinding)bc.findExecutableBinding("addresstaskflowPage");
          break;
          case LINK_BLOGS_REGION:
              tf = (DCTaskFlowBinding)bc.findExecutableBinding("blogstaskflowPage");
          break;
          case LINK_MAPS_REGION:
              tf = (DCTaskFlowBinding)bc.findExecutableBinding("mapstaskflowPage");
          break;
        default:
            return;
        if (tf != null){
            uiMainRegion.setRegionModel(tf.getRegionModel());
            uiMainRegion.setValue(tf.getRegionModel());
            tf.getExecutableBindings();
            AdfFacesContext.getCurrentInstance().addPartialTarget(uiMainRegion);
    }i like to call *#{backingBeanScope.mapBean.initMap}*
my taskflow source
<?xml version="1.0" encoding="windows-1252" ?>
<adfc-config xmlns="http://xmlns.oracle.com/adf/controller" version="1.2">
<task-flow-definition id="map-task-flow">
    <default-activity id="__1">map</default-activity>
    <view id="map">
      <page>/map/map.jsff</page>
    </view>
    <method-call id="initMap">
      <method>#{backingBeanScope.mapBean.initMap}</method>
      <outcome id="__7">
        <fixed-outcome>init</fixed-outcome>
      </outcome>
    </method-call>
    <control-flow-rule id="__2">
      <from-activity-id id="__3">initMap</from-activity-id>
      <control-flow-case id="__5">
        <from-outcome id="__6">init</from-outcome>
        <to-activity-id id="__4">map</to-activity-id>
      </control-flow-case>
    </control-flow-rule>
    <use-page-fragments/>
</task-flow-definition>
</adfc-config>

Hi,
to call the bean, use the EL in Java and reference #{backingBeanScope.mapBean.initMap} as a method expression. If you try and access the bean directly then chances are that the instance is not available. Using EL from Java always guarantees this
Frank

Clarification on application method calls from backing bean.

Hi Experts ,
In our application we are using two different ways to call application module methods from backing bean.
allication module method name : addRowValidUnitInfo
it has 2 parameters serialNumber,modelNumber
1.
BindingContainer bindings1 =
BindingContext.getCurrent().getCurrentBindingsEntry();
OperationBinding serialModelDetails =
bindings1.getOperationBinding("addRowValidUnitInfo");
serialModelDetails.getParamsMap().put("serialNumber",
serialNumber.getValue().toString());
serialModelDetails.getParamsMap().put("modelNumber",
modelNumber.getValue().toString());
serialModelDetails.execute();
String result =serialModelDetails.getResult().toString();
2.
EWarrantyAdminModule appModule =(EWarrantyAdminModule)
Configuration.createRootApplicationModule(amDef,config);
try {
String result = appModule.addRowValidUnitInfo(serialNumber.getValue().toString(), modelNumber.getValue().toString());
} catch (Exception e) {
finally {
Configuration.releaseRootApplicationModule(appModule,true);
Can any one tell me which one gives best performance and which one should be used in which situations.
For me both are working fine but just want to know whcih is the best practice and which gives best performance.
Regards
Gayaz

The approach 1 is the right way.
Reasons:
1) With Approach 2 - you are creating new ApplicationModule on the fly and release it at the end of the request. If you are invoking multiple method calls, you need to the same for each & every call.
This is not reusing the existing application module.
2) If the use cases which does calls for maintaining state across requests from the same client - across the application flow, Approach 2 cannot be used.
Read this blog post from Jobinesh (which indirectly distinguishes both these approaches).
http://jobinesh.blogspot.com/2010/04/invoking-applicationmodule-from-servlet.html
Thanks,
Navaneeth

Passing Parameters to Bounded Task Flow from JSPX

Hi All,
1. Created a JSPX page using UIShell template. This page contains 4 UI Components (InputComboBoxListOfValues) in SingleObjectContextArea. Created a Managed Bean for this page and capture the selected value in ValueChangeListner and added the value to pageFlowScope.
2. Created Unbounded Task Flow, dragged the JSPX page.
3. Have a existing Bounded Task Flow with page fragments, it has MethodCall activity which is expecting inputParameter values from JSPX.
4. To call the Bounded Task Flow from Unbounded Task Flow (has JSPX page) created 2nd JSPX page using UIShell template.
5. Dragged the existing Bounded Task Flow into 2nd JSPX page, in context menu selected Region. This Region is created in SingleObjectContextArea of UIShell.
6. When dragged its asking about inputParameter mapping of Bound Task Flow.
7. Configured the inputParameter value which are coming from pageFlowScope.
8. Dragged the controlFlow from 1st JSPX to 2nd JSPX page to complete the Navigation.
9. When running the Unbounded Task Flow, it showing 1st JSPX with LOV.
10. Selected the values and clicked on Submit Action.
11. Its now showing 2nd JSPX which contains Bounded Task Flow.
12. But its displaying empty records table. (Note: I am passing parameters to MethodCall inputParameters as pageFlowScope, My DB has displaying records based on inputParameters when tested it from OrcleSQLDeveloper)
Could any body help me on this issue.
My Code Snippets of Data Binding of 2nd JSPX page which has Bound Task Flow as a regionModel.:
<taskFlow id="TaskFlow1"
              taskFlowId="/WEB-INF/oracle/apps/TaskFlow1.xml#TaskFlow1"
              activation="deferred"
              xmlns="http://xmlns.oracle.com/adf/controller/binding">
      <parameters>
        <parameter id="PartnerKeyType" value="#{pageFlowScope.PartnerKeyType}"/>
        <parameter id="PartnerKey1" value="#{pageFlowScope.PartnerKey1}"/>
        <parameter id="InteractionPartnerRole"
                   value="#{pageFlowScope.InteractionPartnerRole}"/>
        <parameter id="BusinessProcessName"
                   value="#{pageFlowScope.BusinessProcessName}"/>
      </parameters>

Hi
first of all Can you get the pageFlow scope variable in taskflow?which you are passing from jspx page?
if you are able to get the Lov value in Taskflow try refresh taskflow on changing the LOV.
you need to add input parameter type as boolean,change the parameter from false to true when the LOV value changed.
now use refreshifNeeded property in pagedef bindings file

Unable to execute javascript from backing bean

Hello experts, I want to execute javascript function from backing bean method.
In my .jsff page, I have added the javascript as :
<jsp:root ..... >
<af:resource type="javascript" >
          function fileDownloadJS() {
                            alert(" tesing js from backing bean");
    </af:resource>
</jsp:root>
in my backing bean method :
public void callJSfuntion(ActionEvent actionEvent) {
        RenderKit rk = FacesContext.getCurrentInstance().getRenderKit();
        ExtendedRenderKitService erks = (ExtendedRenderKitService) Service.getService(rk, ExtendedRenderKitService.class);
        erks.addScript(context, "fileDownloadJS();");
I have table in my .jsff page,   inside table column, I have command link and when I click the link,   I am invoking bean method :
<af:table ....>
    <af:column sortProperty="title" sortable="true"
                       headerText="File name" width="250px" id="Title"
                       clientComponent="true">
              <af:commandLink   id="cl1"    actionListener="#{MyBean.callJSfuntion}" clientComponent="true">
                <af:outputText value="#{row.title}" id="ot1"/>
              </af:commandLink>
     </af:column>
.</table>
But when I run my taskflow and click on the link inside the table column,    JS function is not invoked.
Absolutely no clue what is the issue.
Appreciate if you can help me out to resolve this issue.   Thank you.

For debugging purpose can you try :
<script type="javascript" >
          function fileDownloadJS() {
                            alert(" tesing js from backing bean");
</script>
put it on top of the page and let me know what happens.
If it doesn't work try writing the function itself in your addScript(context, script); to see if it works.

How to call a Javascript function from backing bean without any event

Hi,
Someone knows how to call a Javascript function from backing bean without any event ?
thanks

Please review the following thread:
ADF Faces call javascript
Luis.

Need to Add and Remove Columns of ADF Read Only table from Backing bean

I have a scenario where I am trying to Populate TransientVO which is shown has a ADF Read Only Table in page.
I have couple of Check Boxes Based on their selection I am trying to render and hide certain Columns.
But the Issue which I am facing is only the Column Header seems to change where as the Rows and Values doesnt..
even If I apply the expression language rendering condition on the outputText inside those columns.. ..
So I am thinking to add and remove VO Attribute columns to the table from backing bean.
Need some sample code snippet or a better design to achieve this. Its kind of urgent too...having an aggressive deadline :(
Please chip in People..
Thanks in Advance .
TK

Table Code..
<af:table value="#{bindings.InventoryGridTrans.collectionModel}"
                                var="row"
                                rows="#{bindings.InventoryGridTrans.rangeSize}"
                                emptyText="#{bindings.InventoryGridTrans.viewable ? 'No data to display.' : 'Access Denied.'}"
                                fetchSize="#{bindings.InventoryGridTrans.rangeSize}"
                                rowBandingInterval="0" id="t4"
                                partialTriggers="::sbcSales ::sbcUsage ::cb1">
                        <af:column sortProperty="Period" sortable="false"
                                   headerText="#{bindings.InventoryGridTrans.hints.Period.label}"
                                   id="c38">
                          <af:outputText value="#{row.Period}" id="ot33"/>
                        </af:column>
                        <af:column sortProperty="Past12SalesCount"
                                   sortable="false"
                                   headerText="#{bindings.InventoryGridTrans.hints.Past12SalesCount.label}"
                                   id="c29"
                                   rendered="#{backingBeanScope.IndexPageBackingBean.onUsage != true and backingBeanScope.IndexPageBackingBean.onSales == true}">
                          <af:outputText value="#{row.Past12SalesCount}"
                                         id="ot40"
                                         rendered="#{backingBeanScope.IndexPageBackingBean.onUsage != true and backingBeanScope.IndexPageBackingBean.onSales == true}"
                                         visible="#{backingBeanScope.IndexPageBackingBean.onUsage != true and backingBeanScope.IndexPageBackingBean.onSales == true}">
                            <af:convertNumber groupingUsed="false"
                                              pattern="#{bindings.InventoryGridTrans.hints.Past12SalesCount.format}"/>
                          </af:outputText>
                        </af:column>
                        <af:column sortProperty="Past12UsageCount"
                                   sortable="false"
                                   headerText="#{bindings.InventoryGridTrans.hints.Past12UsageCount.label}"
                                   id="c40"
                                   rendered="#{backingBeanScope.IndexPageBackingBean.onUsage == true and backingBeanScope.IndexPageBackingBean.onSales != true}"
                                   visible="#{backingBeanScope.IndexPageBackingBean.onUsage == true and backingBeanScope.IndexPageBackingBean.onSales != true}">
                          <af:outputText value="#{row.Past12UsageCount}"
                                         id="ot47"
                                         rendered="#{backingBeanScope.IndexPageBackingBean.onUsage == true and backingBeanScope.IndexPageBackingBean.onSales != true}"
                                         visible="#{backingBeanScope.IndexPageBackingBean.onUsage == true and backingBeanScope.IndexPageBackingBean.onSales != true}">
                            <af:convertNumber groupingUsed="false"
                                              pattern="#{bindings.InventoryGridTrans.hints.Past12UsageCount.format}"/>
                          </af:outputText>
                        </af:column>
                        </af:column>
                </af:table>

How to show popup from backing bean code immediately?

Hi,
I'm using JDeveloper 11.1.2.1.0 and have problems with showing popups. I have a button with an action on my page and a method in backing bean.
I want to rise up few popups from this method in backing bean (for example just an anouncement that something will happen) or a dialog
(for example a question if you want to continue).
I understand how to get a dialog response to deal with it in code, but the problem is that the popup doesn't show up immediately, but only when
this method called on button finishes. I'd like to handle dialog responses in the middle of the action and then the code to continue with the execution.
Here is my backing bean code:
private RichPopup popup;
public String test() {
//Some code...
RichPopup.PopupHints hints = new RichPopup.PopupHints();
popup.show(hints);
//Here is the place for code which I want to be executed after popup closes,
//but is executed before the popup shows...
return null;
And here is part of my jssf:
<af:commandButton text="Test" id="cb1"
action="#{popupBean.test}"/>
<af:popup id="popup" binding="#{popupBean.popup}">
<af:dialog id="dialog" type="yesNo"
title="Dialog"
dialogListener="#{popupBean.onDialogAction}"
binding="#{popupBean.dialog}" clientComponent="true">
<af:outputText value="Do you want to continue?" id="ot1"/>
<af:clientListener method="onDialogCancel" type="dialog"/>
<af:serverListener type="DialogCancelHandlerEvent" method="#{popupBean.onDialogCancel}"/>
</af:dialog>
</af:popup>
Can someone give me some answer how to show the popup from backing bean code immediately?
Thanks in advance,
Tina

If you want to execute code after popup closes, then put this code in PopupCanceledListener or in DialogListener(you can't block method execution).
Dario

How can I set the value to a session bean from backing bean

Hi Experts,
How can I set the value to a session bean from backing bean where I have created getter and setter
methods for that variable.
Basically I am using ADFUtils class where I am able to get the value from session bean
using following expression
String claimType =
(String)ADFUtil.invokeEL("#{ClaimValueObj.getClaimType}");
Thanks
Gayaz

Gayaz,
Wrong Post !!
Post in JDeveloper and ADF
Thanks
--Anil

Calling function from Backing Bean or JSP page

We are on Jdeveloper 10.1.3.3.0, ADF Faces, JSF Faces .., Currently there is a function call from Javascript event (onmouseover) in the JSP page. I want to call this function from a backing bean or JSP page, as I have to pass some values to this function.
For Ex., I have a function call like return submit('A','B','Test'); on the Javascript event (onmouseover) in jsp page. I want to remove this function from the javascript event and call from backing bean or jsp page to pass some values into the submit() function. I appreciate if anyone can give some example of how to call this function from backing bean or jsp page in the <SCRIPT> or <SCRIPTLET>
Thanks,
Ram

A use case would be helpful so that we can get a better idea of what you want to do.
As a general rule, there is no way to call a client side Javascript function from a backing bean, which is server side. However, there are ways to inject information from a backing bean into your Javascript call. For instance, I have an application that uses Google Maps API. It has an onload call to a Javascript function that builds the map and designates it's center point. The center point comes from a backing bean as latitude and longitude properties. So here is my body tag:
<afh:body onload="initialize(#{backing_searchResults.latitude},#{backing_searchResults.longitude},#{searchCriteria.distance})"
onunload="GUnload()">onload calls the Javascript function called initialize, and passes the latitude, longitude, and distance from the bean. Is the function really being called from my backing bean? No - the parameters are hard coded into the onload event code when the page is rendered. Does it do the job? Sure it does.

Invoke task flow from backing bean?

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