Showing the custom train stop as default activity based on condition

Question

Hi Folks,
I'm using JDeveloper version 11.1.1.5.0. I have requirement where in i have to show the custom train stop as default train stop based on some business logic instead of default activity mentioned as part of task flow with train.
Test Case:
I have a dynamic region where i'm loading diff task flows based on condition. Let us consider i have two task flows TF1, TF2 and One of these task flows (TF2) contains a train.
TF2 task flows has a train with train stops as ts1, ts2 and ts3 and ts1 has been configured as default activity in TF2 task flow
I'm loading these task flows into dynamic region based on my business logic. Currently i'm in TF1 and i'm doing some action in TF1 page. Based on my business logic in one of the button actions in TF1, i have to load TF2 into region and have to set either ts1, ts2 or ts3 as default activity. its not like every time only configured default activity as part of TF2 is shown.
Consider this case. in IF1 i have 3 buttons b1, b2 and b3. When i click on b1, i have to load TF2 into region and ts1 as default activity. Like wise if i click on b2 in TF1, i have to load TF2 abd ts2 as default activity. Like wise if i click on b3 in TF1, i have to load TF2 abd ts3 as default activity.
I have summarized my test case here. Its not exactly 100% same but it more or less like based on some business logic in TF1 i have to load TF2 with specific train stop as default activity.
Please help me in this regard. Is this possible in ADF? if yes provide some pointers.
NOTE:
I'm able to show the specific trainstop as the selected one but its content is not showing. Though i'm able to see my intended trainstop selected but content is always the content related to the default activity configured as part of task flow.
I have used below code to acheive ( setting atleast intended train stop as the selected on)
TrainModel trainModel = TrainUtils.findCurrentTrainModel();
trainModel.setCurrentTrainStop(activityId);
[activity id i'm getting from model it self like java.util.Map<ActivityId, TrainStopModel> mapTrainStops = trainModel.getTrainStops(); and intended activityId is provided}
// note end
Thanks,
Mahipal

Answer 1

Hi Jobinesh,
Thanks for your reply.
When i try to do the navigation with in the task flow i.e. with in the train task flow, i'm able to navigate fine. But for different taskflow, i'm unable to do it.
for ex: in my case i have three train stops ts1, ts2 and ts3. I have placed a button in ts3 and i'm returning the respective navigation el expression to navigate to either ts1 or ts2 in action method of this button. I'm able to do this successfully. but when i come from different taskflow, i'm unable to do this.
I have tried this link as a workaround but it is not working.
http://www.oracle.com/technetwork/developer-tools/adf/learnmore/97-deferred-trainstop-navigation-1528557.pdf
i have tried this way, but it is not working.
FacesContext fctx = FacesContext.getCurrentInstance();
ExpressionFactory expressionFactory =
fctx.getApplication().getExpressionFactory();
ELContext elctx = fctx.getELContext();
MethodExpression methodExpression =
expressionFactory.createMethodExpression(elctx,
"_adfcActivityRequest./WEB-INF/task-flow-definition.xml#task-flow-definition@*ts3*",
String.class,
new Class[] { });
*//NOTE: ts3 is the activity id of third train stop*
//queue action in region
myspaceRegion.queueActionEventInRegion(methodExpression,
null, null, false,
0, 0,
PhaseId.INVOKE_APPLICATION);
Please let me know any pointers for this problem. is there any example with routers navigation rules which can be called from another task flow.
Thanks,
Mahipal