Call bounded task flow

hello,
how can unbounded task flow call bounded task flow.
thank you.

Hi,
Not exactly sure what you want to achieve, other than the obvious.
So, here are some links that might help you;
http://www.oracle.com/technetwork/developer-tools/jdev/adf-task-flow-design-132904.pdf
http://docs.oracle.com/cd/E15586_01/web.1111/b31974/taskflows.htm
Regards,
Dimitris.

Similar Messages

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

Calling bounded task flows imported as ADF libraries

Hello,
I have a main application referencing many bounded task flows included in ADF libraries.
Is there a way to make the application not throwing exceptions if one of these libraries including the called task flow is not found?
The first question is how to catch the exception "Caused by: oracle.adf.controller.ControllerException: ADFC-02001"
The second problem is that once an exception is thrown , the only way to make the application work again with that task flow is to redeploy the whole application with the missing library in the proper place.
It seems it is not possible to just add the library at run-time.
Redoplying an application also seems to invalidate all the current open sessions.
Could you give me suggestions or best practice on making the main application more indipendent from the libraries?
Thanks.

Hello Frank,
It seems there's no way to catch the exception thrown when dinamically calling a bounded task flow in a (missing) library. In facts, I added the single page of the main application as default exception handler activity. I also tried to catch ALL exceptions in the Launcher class below, but I had no luck at all. Task flows are called dinamically from this common piece of code (appropriate for the UI Shell template):
try {
if (newTab) {
TabContext.getCurrentInstance().addTab(title, taskflowId);
} else {
TabContext.getCurrentInstance().addOrSelectTab(title,
taskflowId);
} catch (TabContext.TabOverflowException toe) {
toe.handleDefault();
} catch (ControllerException ce) {
System.out.println("The flow arrives here " + title + ": " + taskflowId);
} catch (RuntimeException re) {
System.out.println("The flow arrives here " + title + ": " + taskflowId);
} catch (Exception e) {
System.out.println("The flow arrives here " + title + ": " + taskflowId);
I also tried to call the task flow in a remote application, but TabContext.getCurrentInstance().addTab(title, taskflowId) expects the taskflowid to be part of the main application, not of the remote app, since addTab() always add a "/" before the taskflowid String passes as parameter.
So again my question: is there a way to profit by the dynamic features coming along with the UI Shell template, where task flows can be really referenced and called each time at run-time, no matter if libraries containing these task flows are present or not when deploying the caller application?
I also repeat that from the tests I have done it looks like I can deploy the caller application without the referenced ADF libraries in their place (containing taskflows that should be called at run-time on user actions), but the problem in this case is that after that moment there's no way to fix the problem by just adding the missing library, that is you cannot place the library where it is expected to be and expect the caller to work after next call; this will just not work until next deploy of the calling application when libraries are in place . We also don't want completely separate web applications. We need task flows integration with the chance to modify and deploy these taskflows as ADF libraries at run time, separately from the caller of the taskflow, without needing to restart/deploy the caller application everytime a libraries changes or a missing library is added.

Calling a bounded task flow from an unbounded task flow

How can I navigate from an unbounded task flow to a bounded task flow....
My situation is as follows:
In the adfc-config.xml, I have a view activity ADMhome, Wildcard as well as a task-flow-call, admTaskFlow. A control flow goes from the wildcard to ADMhome while another control flow goes from the wildcard to task-flow-call.
I have a bounded task-flow "adm-task-flow" with two view actitivies: AdmListView and AdmPageView with AdmListView as the default activity. A Control flow goes from the AdmListView to AdmPageView, all pointing the page fragments
I created another page ADMregion which is a (jsf) where I dragged the adm-task-flow onto.
When I ran the application, the home page displayed properly but when I clicked on a command button to invoke the "adm-task-flow", the application will not responded.
When I looked at the log message, It gave this message:
<TaskFlowCallXmlImpl> <parse> ADFc: /WEB-INF/adfc-config.xml:
<TaskFlowCallXmlImpl> <parse> ADFc: Failed to parse element 'task-flow-reference'.
<ActivityXmlImpl> <parse> ADFc: /WEB-INF/adfc-config.xml:
<ActivityXmlImpl> <parse> ADFc: Activity metadata could not be parsed. [Activity Type, ID] = ['task-flow-call', ' admTaskFlow '].

Thanks for this clarifications...
I created a view activity in the adfc-config-xml and called the page (ADMregion) where the task flow was embedded. It worked well..
Another clarification I want is this, when do I use a task flow call to call a task flow? My thinking and my understanding was that when you create a task flow, you use a task flow call to invoke the task flow.
Pls another aspect I want you to guide me is on calling a java class from jsf and jsff pages. Being new in these technologies, I have having some difficulties navigating and putting all of them together. My problem is this:
I created a java class under the view package of Application Sources in the View Controller of my Application. The java class returns a value. I designed a jsff form with input fields and and command buttons. I want when I clicked on a command button to take a parameter from the input field and pass it to the java class, the after processing, the java class returns a value which I will place inside one of the input fields in my jsff form.

How to call page in adfc-config from bounded-task-flow return?

Hello everybody, I am using JDeveloper 11.1.2.3.0
I have in my adfc-config some pages and one bounded-task-flow (with pages, not page fragments). I call the bounded task flow from one of my pages but I want that when I return from the bounded-task-flow to redirect the page to another page rather than the page that called it. I dont know if this can be done, but do you have any idea on how to achieve something like this?
Thank you

Here is your sample http://tompeez.wordpress.com/2013/06/18/jdeveloper-navigation-after-return-from-bounded-task-flow/
Timo

Call adf bounded task flow library programatically

I have a master application where I have one page with a region where all the task flows are going to be aggregated as tabs. Each task flow represents a module and is in a separate application. I add the adf library to the master application for bounded task flow "Module1".
This is my code that works if the bounded task flow is in the master application:
TaskFlowBindingAttributes tfAttr = new TaskFlowBindingAttributes();
tfAttr.setId("Module1");
tfAttr.setTaskFlowId(new TaskFlowId("/WEB-INF/module1.xml","module1"));
taskFlowList.add(0, tfAttr);
List<UIComponent> tabs = this.getPanelTab().getChildren();
for (int i = 0; i < tabs.size(); i++) {
RichShowDetailItem tab = (RichShowDetailItem)tabs.get(i);
tab.setDisclosed(false);
RichShowDetailItem tab = (RichShowDetailItem)tabs.get(index);
tab.setDisclosed(true);
But if bounded tak flow is in separate application the code doesn't work, it shows a blank page and i have defined a page with some panel boxes. So how shoud i call the bounded task flow programatically??.
I am working with Jdeveloper 11.1.2.3.0, thank you
Edited by: Miguel Angel on 19/12/2012 05:22 PM
Edited by: Miguel Angel on 19/12/2012 07:29 PM
Edited by: Miguel Angel on 19/12/2012 07:43 PM

Yes I see it in the component palette. I found the problem, I see in the task-flow-registry.xml that the path for the bounded task flow is: "module1.xml" and not "WEB-INF/module1.xml". What sould be the correct path?.

Call a jsff page in an bounded task flow.

Hi,
Am using jdeveloper 11.1.1.6.0
I have a bounded task flow named welcomeTF.xml which calls another bounded task flow named LeadsTF. The LeadsTF bounded task flow contains 3 jsff pages(named lv.jsff, lv1.jsff, lv2.jsff).
WelcomeTF(Bounded TaskFlow)------------------------------------>LeadsTF(Bounded Task Flow).
When my user runs the jspx page the Welcome page(from WelcomeTF) renders which has 3 buttons (named Button1,Button2,Button3). These 3 buttons should call the LeadsTF Bounded task flow but with different jsff pages.
Button1 -------------------------------> LeadsTF(lv.jsff)
Button2 -------------------------------> LeadsTF(lv1.jsff)
Button3 -------------------------------> LeadsTF(lv2.jsff)
How can i achieve this? Please help me with the samples.
Regards,
Prasad K T.

You can define a TF parameter for the LeadsTF and use this parameter to route the navigation to either lv.jsff, lv1.jsff or lv2.jsff when entering this TF:
Add a TF parameter (e.g. call it "InitialTarget" and map it to #{pageFlowScope.initialTarget})
Add an ADF Router activity as a default activity in LeadsTF
Configure the router activity to navigate to the appropriate JSF fragment depending on the value of #{pageFlowScope.initalTarget}
Make the buttons in the parent TF set different values of the TF parameter when calling the LeadsTF
Dimitar

Calling a bounded task flow (that uses fragments) from another application

Hello,
I'm currently having difficulties calling a task flow located inside another application.
I have application Console which is my main application in which I would like to run other applications within. Inside this Console I have it divided into splitter windows and inside them I have regions. My goal is to be able to call a task flow from another application inside one of these regions but so far I'm having no luck.
My first problem occurred when I created a 'local' task flow to make a call to another application's task flow. When I set the properties to the task flow call, it gave me an error that it could not find the .XML file for that task flow when I ran the Console application. I then proceeded to copy that .XML from the remote application into the Console's WEB-INF directory and I seemed to get a bit farther. The error I get now is saying that I cannot run a task-flow that uses fragments. It's essentially trying to run that task flow as an entirely new page instead of inside the region that it's bound to. It's NOT a dynamic region (although that's the end goal here). So I then changed the other application's task flow to simply display an entire page rather than fragments inside a region and voila, it works..... kind of.
To recap how I was able to call another application's task flow inside the Console:
- I had to manually copy the task flow xml file into the Console WEB-INF directory
- I had to change the task flow so that it didn't use fragments
- I have called the task flow but I lose my console page entirely, no more regions or splitters so I'm back to square one.
If anybody has any suggestions, hints, tips or anything, send them this way and I will be forever greateful.
Thanks,
Mark

Thanks for your response Frank.
Unfortunately the problem seems to be greater than that. I've been able to package task-flows into a jar library and tried importing them that way with no luck.
I'm simple trying to call an external task-flow to run inside a region which is inside a splitter panel that I call my console.
Any other ideas ?

11gR2 error: call a bounded task flow with method call as default activity

hi all,
We migrated several applications to the JDev 11g R2.
There are 2 applications that contain a bounded task flow where we define Method Call as default activity.
We need invoke specific actions before opening the page.
They run well with 11gR1.
But with *11G R2*, I can’t call directly this task flow with the following URL:
http://127.0.0.1:7101/MyAPP/faces/adf.task-flow?adf.tfId=my-flow-def&adf.tfDoc=/WEB-INF/flows/my-flow-def.xml
Message:
*<SecurityUtils><invokeURLAllowed> ADFc : impossible to call directly the task flow '/WEB-INF/flows/ my-flow-def.xml #my-flow-def' with the help of URL*
(original message: <SecurityUtils><invokeURLAllowed> ADFc : impossible d'appeler directement le flux de tâches '/WEB-INF/flows/ my-flow-def.xml #my-flow-def' à l'aide de l'URL.)
Any idea?
Thanks for you help

Hi,
Have a look at the task flow properties, in PatchSet1, a new feature "invokeURLAllowed" is added that prevents bounded task flows from being URL accessible for security reasons. You can swithc this feature on and off
Frank
Ps.: I though that bounded task flows that you call from a URL generally needed to have a viewActivity as the default activity

Call a bounded task flow from within another bounded task flow

Hello
I am using Jdev 11g Release 1 and need help with the following issue...
Here's an outline of my application..:
1. There is a main .jspx page with icons to choose different paths.
2. Each icon denotes a bounded task flow with TRAIN.
3. Upon clicking on any icon, you get into a series of TRAIN STOPS.
4. On one of the TRAIN STOP there is a button to ADD NEW which shows a popup that is tied to another bounded task flow with TRAIN STOPS.
5. This taskflow 2 calls a method as its default activity.
The issue is when I click on ADD NEW, the popup displays empty. I even put break points on the method and it doesn't even go to the method. The input parameters on the method have been checked so I know that is not an issue. Any clues as to why it won't open the popup..?
Any help will be greatly appreciated.

vinod_t_krishnan wrote:
i guess there is something corrupted in the definition file that is created for the method action in your taskflow.. can u cross check that..What do you mean? How do I cross check this...? Please help
and also check if the DataBindings.cpx has the correct reference of the method definiiton file..Did this..all references point correctly
or otherwise can u drag and drop the method again on to the taskflow and try.. if this time it had created all entries correctly.?Tried it ...doesn't work =(

How to Call an ADF Bounded Task Flow Located in Another Web Application

Hi.
I'm working in JDev 11G TP3.
I've read the section from the 11G documentation on Working with Task Flow Activities,
specifically the section 15.5.3 on How to Call an ADF Bounded Task Flow Located in Another Web Application.
I've followed the instructions but still can not seem to call another task flow in another application correctly.
Can someone send a small example specifying how the (TaskFlow Reference) section
should be filled in, and just a general simple outline of process to set the whole process up.
Thanks

Your EL for the remote-app-url needs to return something like this
"http://www.acme.com:80/myapp/faces/adf.task-flow"
where "http://www.acme.com:80/myapp/faces" is the root of the url you'd normally use to access the remote application.
I filed two bugs:
bug 6944247 to improve the documentation
bug 6944246 to fix the fact that you currently have to specify the 'adf.task-flow' part. You shouldn't need to do that. But doing so for now will get it to work.

Dynamic method calls in bounded task flows?

Hi!
I have the following scenario:
We are developing a framework in which we would include modules as ADF libraries (as JAR files) with bounded task flows. This framework contains a bean class with bindings for some UI components in framework which I enable or disable (depends on user action). That is the main reason bean class should be present in framework application.
I have a bounded task flow in every module which needs to call a method in bean with UI component's bindings that would enable or disable that component.
How can I achieve that? To pass bean as a parameter into bounded task flow and then call its methods? That is dynamic method calls for bean.
I'm using JDeveloper 11.1.2.1.0
Thanks for your help
Regards, Marko

Hi,
I explained this; +"I have a bounded task flow in every module which needs to call a method in bean with UI component's bindings that would enable or disable that component. How can I achieve that? To pass bean as a parameter into bounded task flow and then call its methods?"+ a couple of times already (not sure if it was all for you) and don't think I change my position here. I also explained how to use a ValueExpression to lookp a managed bean containing component bindings (should be in requestscope).
Frank

How to pass a parameter to a bounded task flow?

Hi,
We are facing issue while passing parameter from a bounded task flow to another bounded task flow and then showing the passed parameter in a jspx page.
We have a caller task flow with following component:
1. A jspx page
- In this jspx we have a text box have its value as #{pageFlowScope.inputvalue}.
- Also we have a command button which has its "Action" as the control flow that leads to the "called" task flow.
2. A bounded task flow named "called".
So, we call the "called" task flow on the button click in the jspx page.
Also, in called taskflow we have a jspx page where we are using a output label to show the parameter passed from caller task flow to the called task flow.
We performed the following steps to set the parameter passing from caller task flow to the called task flow.
1. Select the input text component on the JSF page.
2. In the Property Inspector, enter a value for the input text component. You can specify the value as an EL expression, for example #{pageFlowScope.inputValue}.
3. In the Application Navigator, double-click the name of the called task flow to open its diagram.
4. Click the Overview tab for the called task flow.
5. Click Parameters and expand the Input Parameter Definition node.
6. Click the Add icon next to Input Parameter Definition.
7. In the Name field, enter a name for the parameter, for example, inputParm1.
8. In the Value field, enter an EL expression where the parameter value is stored and referenced, for example, #{pageFlowScope.inputValue}.
9. In the Class field, enter a Java class for the input parameter definition. If you leave the Class field empty, its value is by default implicitly set to java.lang.String.
10. In the editor, open the diagram for the calling task flow.
11. In the Application Navigator, drag the called ADF bounded task flow and drop it on top of the task flow call activity that is located on the calling task flow. Dropping a bounded task flow on top of a task flow call activity in a diagram automatically creates a task flow reference to the bounded task flow.
12. In the Property Inspector for the task flow call activity, click Parameters and expand the Input Parameters section.
13. Enter a name that identifies the input parameter.
14. Enter a parameter value, for example, #{pageFlowScope.parm1}.
Now when we try to fetch the value of parameter using #{pageFlowScope.parm1} in the jspx in called taskflow, its not giving the desired value.
We even tried to set the to and from parameter of the jspx in called askflow. But no success.
Can anyone let us know if we are doing smething wrong or exact steps to configure passing of parameters to a bounded task flow and retrieving it in a jspx page will also help.
Thanks in advance.

Hi Tushar,
In step# 14, the value should be "#{pageFlowScope.inputValue}" (should be the same as the value in step#2) .
tushar wrote:
Now when we try to fetch the value of parameter using #{pageFlowScope.parm1} in the jspx in called taskflow, its not giving the desired value.To display the passed parameter, you should use "#{pageFlowScope.inputValue}"<----- should be the same as the value in step#8
Regards,
Rommel Pino

The bounded task flow disappear after exiting

HI ALL
i have a simple bounded task flow with fragment with behavior (always begin new transaction)
this task flow have 2 pages to show emp and update emp then return with commit value
i drop it on a page registered in asfc-config.xml as a region
when i run the page the flow start when it exit it is disappear
best regards

thank you very much Frank for your reply and umesh too
relay i tried to resolved but i still can't .
its very simple bounded task flow and i am still learning ADF .
as i said up its consist from
1-view1:listEmp table of employees
2- control flow case : edit
3-view2: editEmp form to edit employee
4- task flow return : commit to commit transaction
5- task flow return : rollback to rollback the transaction
if i drop it into adfc-config and add another view with control flow case to call it , this case is working and after i press commit or rollback the main page displayed again
but if i drop it inside a page as a region it working but after i press commit or rollback the region disappeared and the page become empty
best regards

Error when launching bounded task flows in dynamic tabs from UI Shell templ

Hello,
could you tell me what is wrong with launching task flows in new tabs?
I am using the UI Shell template, the task flow is bounded with one simple page (I tried with both fragments jspf and pages jsp)
The execption is the following:
java.lang.ClassCastException: javax.faces.component.UIViewRoot cannot be cast to oracle.adf.view.rich.component.fragment.UIXRegion
Here's the code I am using to launch the bounded task flow:
private void launchActivity(String title, String taskflowId, // taskflow is something like "/WEB-INF/mytask_flow.xml"
boolean newTab) {
try {
if (newTab) {
TabContext.getCurrentInstance().addTab(title, taskflowId);
} else {
TabContext.getCurrentInstance().addOrSelectTab(title,
taskflowId);
} catch (TabContext.TabOverflowException toe) {
toe.handleDefault();
Root cause of ServletException.
java.lang.ClassCastException: javax.faces.component.UIViewRoot cannot be cast to oracle.adf.view.rich.component.fragment.UIXRegion
     at oracle.adfinternal.view.faces.taglib.region.RegionTag.doStartTag(RegionTag.java:105)
     at oracle.jsp.runtime.tree.OracleJspBodyTagNode.executeHandler(OracleJspBodyTagNode.java:50)
     at oracle.jsp.runtime.tree.OracleJspCustomTagNode.execute(OracleJspCustomTagNode.java:261)
     at oracle.jsp.runtime.tree.OracleJspClassicTagNode.evalBody(OracleJspClassicTagNode.java:87)
     at oracle.jsp.runtime.tree.OracleJspBodyTagNode.executeHandler(OracleJspBodyTagNode.java:58)
     Truncated. see log file for complete stacktrace

Hi Pramod,
Have you tried setting the Transaction attributes of your task-flow? Open up your task flow definition then go to Overview Tab. Try changing the appropriate attributes like setting the transaction as "Always Begin New Transaction" and/or unchecking the "Share data controls with calling task- flow". Try to mix settings and find the one that suit your needs.
Regards,
Pino

Call bounded task flow

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