Regarding webservice adding to context of component controller

Hi All,
I have imported a webservice model and i am creating a data link between
data model and component controller.why should i link Request Node(i,e Request_CustSessionWSViDocument_CustRetAll) to context of component controller why not response object(Response_CustSessionWSViDocument_CustRetAll).
I want a clear picture regarding Request Node object and Response Object Node.Actually I want to know what resides in Request Node and in Response Node of a webservice model
Thanks & Regards,
saleem

These classes are simply proxy classes for the web services.
They reprsent request and response to the web service.
For each method in web service there will be some parameter and return type. The request represent the paramaters and response represent the return type for the web service (or simply say method exposed as web service)
Web Dynpro through context allows to you easily map the request,response in form on context nodes. You have to fill the request node.Then execute the web service. The result is stored in response node.
This is good wiki to learn about AWS Model:
https://wiki.sdn.sap.com/wiki/display/WDJava/FAQ-Models-AdaptiveWebService
Regards
Ashwani Kr Sharma

Similar Messages

Access context of Component Controller from Views

Hi,
In WD Java, I used to set attributes value for Context present in Component controller from the view. I used to write a piece of code at the view level for this.
How do i do this in WD ABAP. I believ I have to get instance of Component controller like this:
lr_compcontroller type REF TO ig_componentcontroller.
lr_compcontroller = wd_this->get_componentcontroller_ctr( ).
Regards,
Murali.

Hi Murali,
yes you can access the comp_controller in the same sort of way in WDA.
You declared component usages on the property tab.
The wizard (ctrl-F7)has various options, check it out.
One is calling methods on declared controller usages.
the result is for example such generated code:
DATA: l_ref_ANOTHER_CONTROLLER TYPE REF TO IG_ANOTHER_CONTROLLER .
l_ref_ANOTHER_CONTROLLER = wd_This->Get_Another_Controller_Ctr( ).
data:
l_Api_Another_Controller type ref to IF_WD_CONTROLLER.
See also local interface code in CTRL-SHIFT F1.
You work directly with this info. Indeed constants from the interfaces should be used this way.
Work with the wizard. And declare all usages in the properties tab.
Moving outside of the framework is possible but not recommended
regards
Phil

Context from interface controller

Hi Experts,
I am Using one DC A in DC B.
Using interface controller context mapping I got the Context of DC A in DC B.
I mapped the context also.
Now I have added new context node in DC A, I want map it in DC B.
But I am not able to see the newly added Context of DC A in the interface contrlloer.
I have done refresh, rebuild and Sync options but no use.
How can I resolve this?
Regards,
Naresh

Hi,
Copy and paste the newly created context from component controller to interface controller
Then do a build.
Regards
Ayyapparaj

Accessing component controller node

Hi..Experts,
How to access component controller node from WINDOW (please give me a sample code ) .
I want to set data to component controller node.
please help me.
Regards,
Siva

Hi siva,
Its very easy u need not to do any extra coding to share data between window context and component controller context.
Step 1) u create the node in component controller and map this node with window context.
step 2) Now in any method of window u write the set_attribute or bind_table statement ,your data will automatically transported to component controller .
So u dont need to do any extra coding for this.
Hope this will help your requirement.
regards
Pankaj Giri

Mapping between view controller and component controller

Hi Experts,
I am new to web dynpro ABAP. First I created an application using one input field and one button, my view name is V1. In view context, I created one node viz. NODE1 using table SFLIGHT, fields chosen are CARRID CONNID and FLDATE. I have bind that to my input field and for button I have not done any thing. So, when I am running this application it is allowing me to select value for my input field. After this, I have added a table to the view layout. I have added to nodes using sflight table in COMPONENT CONTROLLER. First node is SFLIGHT with CARRID, CONNID, FLDATE, PRICE and PLANETYPE and second node is NODE1(same name) with only CARRID. Now in VIEW CONTEXT it is showing -
CONTEXT
   NODE1
     CARRID
     CONNID
     FLDATE
(which I had created in VIEW CONTEXT for input field)
CONTEXT COMPONENT CONTROLLER
   SFLIGHT
     CARRID
     CONNID
     FLDATE
     PRICE
     PLANETYPE
   NODE1
     CARRID
(which I had created in component controller after adding table)
Now both this context should be matched as per my knowledge, so that when I bind the table it should V1.SFLIGHT.<fieldname> and not as V1.NODE1.<fieldname>
But I don't know how to match them. Please help.

Hi Sambaran,
I guess I understood what you want.
To achieve this, proceed as follows:
1)Open your View, goto Properties tab. Here in the Used controller table, click on the create icon to include the component controller (component controller is added by default by the framework, if you use custom controller you need to define this usage).
2)Once you do this, goto Context tab of the view, here now you will be able to see the component controller on the right hand side.
3)Next, drag the SFLIGHT node from the component controller, and drop it on the Context (root context) of the view (left side). Doing this system will create a mapped context node on the view which you will use to bind to the view elements on the layout.
The above steps apply if you want to directly create a view context from component controller context.
Hope this helps!
Thanks,
Chitrali

Mapping one node in a view context to many nodes in the component controlle

Hi guys,
I need to map an element (attribute) of a node in the View Context to an attribute of multi nodes of the same type:
Context View:
customer_no
      |
      | -> KUNNR
Component Controller Context having two nodes:
- Node1
     RFC1
        |
        |->KUNNR
- Node2
      RFC2
         |
         |->KUNNR
Above I need to map the (KUNNR) in customer_no node to KUNNR in the RFC1 RFC2 before i execute the two RFCs services.
Note:
if this is not possible would you mention another solution.
Thanks,

Hi,
   As per MVC you cannot map context from view controller to component controller.Mapping can happen from component
controller to view controller.
You cannot create mapping for context attributes. You can map nodes if both source node and destination node both has same structure and same number of attributes. If they dont contain same number of attributes the extra attributes from the source node gets copied to the destination node.
In your case before the RFC execution you can read the value of attribute Kunnr from view and set it the RFC attribute Kunnr before the Function module execution.
Regards
Bala Baskaran.S

How to populate context node of component controller

Dear People,
Is there any way i could access my custom context node of component controller in the context node class of my custom controller.
I am navigating from one component to another, Upon initial launch everything is working fine, however if i go to home page and come back. the assignment block is coming empty.
In WD_USAGE_INITIALIZE i m binding my custom controllers context node with the component controller's context node of the other component and it works fine when i load the UI. however if i go to home page and come back. the assignment block is coming empty.
Following code is in method of DO_VIEW_INIT_ON_ACTIVATION of the other componenet.
METHOD do_view_init_on_activation.
DATA:   lv_btstatus_parent TYPE REF TO cl_crm_bol_entity,
        lv_comp_ctrl      TYPE REF TO cl_btstatus_bspwdcomponen_impl.
CONSTANTS:
        lc_us_header      TYPE crmt_relation_name VALUE 'BTStatusHUserAll',
        lc_us_item        TYPE crmt_relation_name VALUE 'BTStatusIUserAll'.
lv_comp_ctrl ?= me->comp_controller.
check if relationname has been passed from outside
    gc_relation_name = lv_comp_ctrl->get_relation_name( ).
IF gc_relation_name IS INITIAL.
check type of parent to determine relationname
    *lv_btstatus_parent ?= lv_comp_ctrl->typed_context->btstatusparent->collection_wrapper->get_current( ).*
   check lv_btstatus_parent is bound.
    CASE lv_btstatus_parent->get_name( ).
        WHEN 'BTStatusH'.
          gc_relation_name = lc_us_header.
        WHEN 'BTStatusI'.
          gc_relation_name = lc_us_item.
    ENDCASE.
ENDIF.
CALL METHOD super->do_view_init_on_activation.
ENDMETHOD.
Here lv_btstatus_parent is bound during initial launch, however after navigating back to the same page, its blank leading to exception.
any suggestions would be helpful.
regards,
pradeep

solved myself

Creating Node for Context in a component controller disabled.

Hi, I am trying to create this node, i see the option when I do RightClick the context in the component controller > Create>Node, but i was not able to select it. Am i missing some settings to enable it?
Appreciate your help.
Thanks,
Chinnam.

hi..
No worries, this forum will help you
On top left corner you will find , small icons for change, dispaly..
just place your mouse over those icons...you wil get the tooltips.
to build a simple applicatioin
http://www.****************/Tutorials/WebDynproABAP/SimpleApplication/SimpleApp1.htm
and to learn webdynpro just go through the below links
http://www.sdn.sap.com/irj/scn/webdynpro-elearning
Regards
Srinivas

ALV and component Controller Context.

Good morning experts,
i use an alv to display a context from the component controller. The ALV is editable.
My problem now is that changes to the ALV never reach the node.
Where are my changes and what must i do to write them to the node.
Thank you and best regards
René

Hi Rene,
You need to create an event handler method (say for example CHECK_DATA_CHANGE) for the event ON_DATA_CHECK of the ALV.
You would have to first call the DATA_CHECK method of the ALV component. This method checks if any data has changed in the ALV and then triggers the ON_DATA_CHECK event if it finds that something has changed in the ALV. Create an eventhandler method for the ON_DATA_CHECK method and within this method write the code for modifying the context attributes to reflect the new ALV data.
Call this DATA_CHECK method from WDDOAFTERACTION so that whenever any action is performed the system would check if any data has changed in the ALV & then eventually execute your eventhandler method resulting in the context node getting updated. Hope that this is clear for you now.
method WDDOAFTERACTION .
DATA lo_interfacecontroller TYPE REF TO iwci_salv_wd_table .
lo_interfacecontroller = wd_this->wd_cpifc_alv( ).
lo_interfacecontroller->data_check( ).
endmethod.
Regards,
Uday

Cannot access Created Context Attribute from Component Controller

Hello All,
I have added a new attribute to a node in my component controller 'LOGONUID' and I cannot access it within my windows within the WDA application.
DATA lo_nd_url_param TYPE REF TO if_wd_context_node.
DATA ls_workset TYPE wd_this->element_workset.
"DATA ls_logonuid TYPE wd_this->element_logonuid.
I get an error as soon as I try to activate this code in my method in my W_MAIN
In my component controller I do not see it reference in the SAP generated code in my WD_THIS IF_COMPONENTCONTROLLER?
* Intf.: ig_componentcontroller
* Purp.: programming interface for access of this controller within
*        other controllers of the same component
*        controller: <COMPONENTCONTROLLER> of
*        component:   <zhr_wd_mss>
* UDate: 20111207 145441
*=====================================================================*
interface ig_componentcontroller.
interfaces: ziwci_hr_wd_mss .
constants:
    wdctx_context type string value `CONTEXT`.
constants:
    wdctx_cuifcontext type string value `CUIFCONTEXT`.
types:
    begin of Element_cuifcontext,
      USERID type String,
      LASTEVENTOPERATION type String,
    end of Element_cuifcontext,
    Elements_cuifcontext type
       standard table of Element_cuifcontext
       with default key.
constants:
    wdctx_messages type string value `MESSAGES`.
types:
    Element_messages type ZHR_S_MESSAGE,
    Elements_messages type
       standard table of Element_messages
       with default key.
constants:
    wdctx_workset type string value `WORKSET`.
I want it to be declared as the constant 'WORKSET'
thank you
Edited by: Keith Warnock on Dec 7, 2011 8:55 PM
Edited by: Keith Warnock on Dec 7, 2011 8:56 PM

> I have added a new attribute to a node in my component controller 'LOGONUID' and I cannot access it within my windows within the WDA application.
>
>
>
> DATA lo_nd_url_param TYPE REF TO if_wd_context_node.
>   DATA ls_workset TYPE wd_this->element_workset.
>   "DATA ls_logonuid TYPE wd_this->element_logonuid.
>
>
>
This declaration is not right. There is no element logonuid, you have the attribute inside a node. workset is a node and thats why you can declare that way.
easiest way is to declate
data lv_logonuid type <ddic type> or
data lv_logonuid type wd_this-><node name>-logonuid.
You can also use the code generator in (CTRL +F7 ) to get/set attributes.

Read a View Context's node's element and assign from Component controller

Hello Experts,
I'm new to JAVA WD.
Here is my scenario.
I have to use an Adobe form in a WDJ. The input parameters and the output parameters of the DC are defined in a method in the Interface Controller method.
The context of the Component Controller has the following structure
Context
---StartDate
---EndDate
---AbsenceType
Then the mapping between the Component controller and the interface controller is done so that the Interface controller also has the context structure as
Context
---StartDate
---EndDate
---AbsenceType
So now the interface controller and the component controller are bounded correctly.
Now I bind the view also with the Component controller as below.
Context
---StartDate
---EndDate
---AbsenceType
But since i need to use an Adobe interactive form inside this view, the datasource for the form cannot be the root context node but some other node. So I replicated the same structure in the view context so as to make the fields visible in the Adobe form context. Now the context looks as below.
Context
---StartDate
---EndDate
---AbsenceType
---DATA_NODE
-----StartDate
-----EndDate
-----AbsenceType
Now my question is, how do i map the result from the Adobe form into the context of the view??
What code should i write and where should i write to achieve this?
I need to do the following. But dont know how to write the code for this.
Context.StartDate = Context.DATA_NODE.StartDate
Context.EndDate = Context.DATA_NODE.StartDate
Context.AbsenceType= Context.DATA_NODE.AbsenceType
Please help!
Any help will be greatly appreciated.
Thanks,
Sam

Hello Nikhil,
I'm stuck with another small issue.
Let me first explain what I'm trying to do.
I have a view with the context structure as follows
Context
---DATA_NODE (Node)
----Data1
----Data2
---Data1
---Data2
All i need to do is, at the start of the view, i need to move the data from
Context.Data1=>Context.DATA_NODE.Data1 and
Context.Data2=>Context.DATA_NODE.Data2
Also, at the View Submit button click, I need to move the data from
Context.DATA_NODE.Data1 => Context.Data1 and
Context.DATA_NODE.Data2 => Context.Data2
(I managed to do this submit button click by calling an action->method and wrote the code as you gave earlier)
wdContext.currentContextElement().setData1(wdContext.currentData_NodeElement().getData1());
wdContext.currentContextElement().setData2(wdContext.currentData_NodeElement().getData2());
But I wrote at wdInit() for the view the code in the reverse way, but the values are not getting passed to the Data_Node and hence its not defaulting with the values from the elements of the context.
This is what I wrote.
wdContext.currentData_NodeElement().setData1(wdContext.currentContextElement().getData1());
wdContext.currentData_NodeElement().setData2(wdContext.currentContextElement().getData2());
Please let me know if I'm doing something wrong here.
Appreciate your help in advance!
Cheers,
Sam

Mapping from component controller context and view context

Hi to all experts.
im trying to create my first webdynpro . Im stuck up here please help me .... How to map the node from component controller context and view context i have searched the forum....got the answers as Drag and Drop...But it is not working ....

Hi
Check out this links and check saptechnical site
WDA in SAP Help
http://help.sap.com/saphelp_nw2004s/helpdata/en/7c/3545415ea6f523e10000000a155106/frameset.htm
Web Dynpro for ABAP in SDN
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/webcontent/uuid/512040e1-0901-0010-769c-c238c6ca35d9 [original link is broken]
Developing ABAP Applications Using Web Dynpro
http://help.sap.com/saphelp_nw2004s/helpdata/en/42/d41b25d2216babe10000000a1553f6/frameset.htm
Web Dynpro ABAP: Development in Detail
http://help.sap.com/saphelp_nw2004s/helpdata/en/03/0048413e466e24e10000000a155106/frameset.htm
WDA Sample programs & tutorials
https://www.sdn.sap.com/irj/sdn/developerareas/webdynpro?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Web Dynpro ABAP Demonstration Videos
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
Web Dynpro ABAP Wiki's
https://www.sdn.sap.com/irj/scn/wiki?path=/display/wdabap/main&
New to Webdynpro
Thanks,
Tulasi Palnati

Issue in Binding Custom controller to Component Controller

Dear All,
I have enhanced a standard component ERP_H.
I created a custom controller with context nodes BTSTATUS, BTSTATUSH
I enhanced the component controller with context node BTSTATUS, BTSTATUSH
Now when i try to bind the custom controller to component controller using this code in the context class of my custom controller
bind to component controller
owner->do_context_node_binding(
           iv_controller_type = CL_BSP_WD_CONTROLLER=>CO_TYPE_COMPONENT
           iv_target_node_name = 'BTSTATUS' " component controller context node
           iv_node_2_bind = BTStatus ).
its not working since this context node in component controller is not the standard one but the custom added one.
Am i missing something, or is there any way to bind customer context node in custom controller to customer context node in component controller.
regards,
pradeep

Hi pradeep,
    Try the other way round go to the context class in the component controller and paste the following code in the
create_contextnode( context node = name of the node to be linked).
*owner->do_context_node_binding(
        iv_controller_type = cl_bsp_wd_controller=>co_type_custom   <-----linking from component to custom
        iv_target_node_name = 'BUILHEADER' "target node: component controller node
        iv_node_2_bind = BUILHEADER ). "source node: current node.
See if this works.
Thanks

Difference between component controller & Custom controller

Hi all
what is the main difference b/w component controller , custom controller & interface controller.
i want to know the difference of these three in the real time environment.
if anybody explains me with any simple example then it is great help to me....
Thanks
Suresh babu.

Hi Suresh,
Component Controller and Custom Controller are more or less the same. Both are related to a particular component in the webdynpro application you create.
Component Controller:-
For each component of yours there will be a component controller, were in you can define context variables and methods, events etc.. This usefull while using models.
Simple example where we can see this is, when you create global context variable in this controller and map this variable to the view controller context variable of different view, which enables you to pass the value of the variable from one view to another.
Custome Controller:-
They also have the same the function but as the name suggest there function can be customised. That is we can have more than one custom controller for a component. This is usefull when we need to create seperate execute methods for inputs from model import( Both webservice and rfc call).So you can seperate each other. Example is there in the more sample codes and application section.
Interface Controller:
There is only one interface controller for a component. It is mainly used when we need to communicate between two components.There is sample application for communication between two components in the sample codes and application section.
Regards
Sreedhar.

Calling component controller's method

Hi,
How can i call component controller's method from a view?
Thanks.

Yes, You can call method of component controller from View.
If you have already mapped any context node/attribute between your view and component controller then it means component controller is already added in your view. If you have not done same then you can add component controller by going into the properties of view.
To access the method use following code.
wdThis.wdGet<Your_controllername>Controller().<methodName>();
Regards,
Rohit

Regarding webservice adding to context of component controller

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