LDAP connectivity in web Dynpro

How to do LDAP connectivity in web dynpro to make use of UME

After installing the LDAP go to configtool UME
Select the option from the dropdown
then
Provide the server name : The server in which you have installed the LDAP
port :389/636
username=cn=<the username>,o=<context name>
password=<the passsword provided by you while installing>
browse to find the data for the path below
userpath
grouppath
After this the UME in portal can be configured in the LDAP

Similar Messages

CAS connect to Web Dynpro

Hallo All,
I want to connect my Web Dynpro application with a CAS Project.
I have include the Cas-Model with "add Model" and I see it.
But I can't see the CAS application services and Entity Service under
the model.
Regards,
Philipp

Hello,
I have seen the case where people have coded switches into their reports (hidden parameters) that allow the report to be run and instead of exporting the results to an ALV table, have exported the results to a memory address. Then these memory areas have been read and exported to a WD. (there are standard SAP pieces of logic that used to do this in ESS and MSS in the old ITS days)
You can just execute the report from inside the WD code and retrieve the result...
Personally I don't like this approach! I don't like using global memory area for a start! I also have tried to replace any web based reporting with POWLs - which have a different approach to selections - i.e. knowing this before the user runs the report.
I think you would be better off modularising your report so it applied the MVC paradigm - the code for the report should be broken up so that the display and selection logic (view) is separated from the extraction logic (Model) the controller logic is pretty much the report code itself - and where I have built this approach (eg a backend report and a WD report that use the same logic) I have merged the view and controller logic in the report and pretty much also done this in the WD too - but the Model is identical in both cases.
Hope this helps,
Chris

JCO Connection for web-dynpro tutorials (EP 6.0 SP9 downlaod from SDN)

Hello,
I have a question regarding JCO connections for web-dynpro example/tutorials. I have installed WAS 6.40 sneak preview from EP 6.0 SP9 download from SDN. Installation instruction says: Choose "No SLD available"
but the web-dynpro example/tutorial asks to create JCO connections by going to web-dynpro -> content admin..etc on http:<host>:50000..Here, all the tabs relating to creating JCO connections appear to be "protected" on my screen. so I can't do anything further. By going to http:<host>:50000/sld, I also tried to add SLD server..but that is not helping. There is some "import" button, but which CIM file (in which folder etc) am i supposed to import for a simple test system? What are the steps for a bare minimum setup so that I can use the WAS 6.20 system at work-place as my backend & try out the web-dynpro examples? Do I really need SLD setup? Where is documentation about all this after one installs the WAS 6.40 JAva? I was expecting it somewhere at least in the eclipse IDE help-documentation..None of the web-dynpro tutorials explain this !
thanks

Thanks everybody.
NagaKishore, after doing all the steps, when I goto
localhost:50000-> web dynpro -> content administartor, and try to "maintain JCO Destinations" I am getting this error: (full stack trace not included)
An error has occurred:
"Failed to process the request."
Please contact your system administrator.
Error stacktrace:
java.lang.NullPointerException
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:871)
     at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:485)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.updateJCOClientStatus(JCOConnectionsDetails.java:438)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:634)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:598)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.wdDoInit(JCOConnectionsDetails.java:120)
     at com.sap.tc.webdynpro.tools.explorer.wdp.InternalJCOConnectionsDetails.wdDoInit(InternalJCOConnectionsDetails.java:238)
     at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61)
     at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215)

How to display RFC-Logon-Screen for non trusted connection in Web-Dynpro?

Dear Web-Dynpro-Specialists,
i got a issue while creation of an WebDynpro-Tool, which is using RFC connections for reading data.
In some cases the RFC connection is not a trusted one connection, so a login is nessessary, but in
this cases not a window is coming up for login....
Any idea how i can get this window for login, in order to collect the nessessary Data for my tool?
Additional Information concerning the RFC connection:
While running my Web-Dynpro i run this Method:
METHOD get_table_entries.
CLEAR rt_entries[].
CALL FUNCTION 'RFC_GET_TABLE_ENTRIES'
DESTINATION iv_destination
EXPORTING
gen_key = iv_table_key
table_name = iv_table_name
TABLES
entries = rt_entries
EXCEPTIONS
internal_error = 1
table_empty = 2
table_not_found = 3
OTHERS = 4.
CASE sy-subrc.
WHEN 1.
RAISE internal_error.
WHEN 2.
RAISE table_empty.
WHEN 3.
RAISE table_not_found.
WHEN 4.
RAISE unknown_error.
ENDCASE.
ENDMETHOD.
Thanks a lot in advance
Best regards
Carsten Klatt

Hi!
You can use the function module RFC_MODIFY_R3_DESTINATION to create, modify and delete RFC connections. You will need the system ID (e.g. ABC), client (e.g. 123), system number (e.g. 00) and the host name of the server. In this example the following code would create or modify the RFC destination ZRFC_DESTINATION.
    CALL FUNCTION 'RFC_MODIFY_R3_DESTINATION'
      EXPORTING
        destination                = 'ZRFC_DESTINATION'
        action                     = 'M'
        systemid                   = 'ABC'
        systemnr                   = '00'
        server                     = 'serverhostname'
        language                   = sy-langu
        client                     = '123'
        user                       = 'USERNAME'
        password                   = 'PASSWORD'
        description                = 'Dummy RFC Connection'
      EXCEPTIONS
        authority_not_available    = 1
        destination_already_exist = 2
        destination_not_exist      = 3
        destination_enqueue_reject = 4
        information_failure        = 5
        trfc_entry_invalid         = 6
        internal_failure           = 7
        snc_information_failure    = 8
        snc_internal_failure       = 9
        destination_is_locked      = 10
        OTHERS                     = 11.
With the following code you can delete this connection:
    CALL FUNCTION 'RFC_MODIFY_R3_DESTINATION'
      EXPORTING
        destination                = 'ZRFC_DESTINATION'
        action                     = 'D'
      EXCEPTIONS
        authority_not_available    = 1
        destination_already_exist = 2
        destination_not_exist      = 3
        destination_enqueue_reject = 4
        information_failure        = 5
        trfc_entry_invalid         = 6
        internal_failure           = 7
        snc_information_failure    = 8
        snc_internal_failure       = 9
        destination_is_locked      = 10
        OTHERS                     = 11.
Please keep in mind that deleting an RFC connection is usually noted in the system log.
If you want to reuse your connection for multiple servers, you could run into trouble since connection data is cached.
Sincerely,
Stefan

DB connection in web dynpro

Hi,
I am not really glad about it, but realized that I really have to use EJB´s in web dynpro for DB access. So I have to read documents for this heavyweight component
At present I have one question: I have already created the tables in oracle.... Can I create for this tables EJB´s and use these as web dynpro models ? I am asking because I am only reading that I have to create the tables via an Dictionary Project.
Regards
Flo

Hi Florian,
U'll have to create table in java dictionary project if u r gonna use EJB's with wrppaer class i.e. ur java class which will reside in your java project.
u'll have to give ur dictionary proj name to database-sources-aliases.xml of ur .ear project.(i.e. Enterprise appication project)
So it will get a connectin with Dictionary project.
yes you will have to import java bean model in your WD project if u wann give WD interface
for through info :
EJBs in Web Dynpro Application Using Wrapper Class
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/00be903b-8551-2b10-c28a-8520400c6451]
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1f5f3366-0401-0010-d6b0-e85a49e93a5c
Accessing database table using EJB and web dynpro
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/70929198-0d36-2b10-04b8-84d90fa3df9c]
Oracle Connectivity with EJB using WebDynpro Application
[https://www.sdn.sap.com/irj/sdn/wiki?path=/display/wdjava/oracle%2bconnectivity%2bwith%2bejb%2busing%2bwebdynpro%2bapplication]
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/0b657b7e-0c01-0010-74a4-b71518871800]
Regards,
Khushboo

Error trying to create https connection from Web Dynpro

Hi experts!!
I am trying to create a WD view with an actionButton and a form template, when the user fills the data in the form and presses the button, i want to create an Https connect and post some parameters to the URL.
HttpsURLConnection cannot be resolved,
com.sun.net.ssl.internal.ssl.Provider() does't not exist in the package com.sun.net.ssl.internal.ssl.Provider()
do i need to add any jars?? I've already added the jsse.jar
The code i use is the following.
private void sendHttp(){
      String response = "";
      HttpsURLConnection connection = null;
      try {
                  System.setProperty("java.protocol.handler.pkgs", "com.sun.net.ssl.internal.www.protocol");
                  java.security.Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
                  URL url = new URL(<your_url>);
                  connection = (HttpsURLConnection) url.openConnection();
                  connection.setDoInput(true);
                  connection.setDoOutput(true);
                  connection.setAllowUserInteraction(true);
                  connection.setUseCaches(false);
            }     catch(Exception e) {
                  response = response + "Error in getting connection: " ;
                  response = response + e ;
            if (connection != null){
                  try {
                        connection.setRequestMethod("POST");
                        connection.setFollowRedirects(true);
                        //build all the parameters into 1 string
                        String query = "parameter1name=" + URLEncoder.encode(parameter1value);
                              query += "&";
                              query += "parameter2name=" + URLEncoder.encode(parameter2value);
                        connection.setRequestProperty("Content-length",String.valueOf (query.length()));
                        connection.setRequestProperty("Content-Type","application/x-www- form-urlencoded");
                        connection.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows 98; DigExt)");
                        // open up the output stream of the connection
                        DataOutputStream output = new DataOutputStream( connection.getOutputStream() );
                        // write out the data
                        int queryLength = query.length();
                        output.writeBytes( query );
                        output.close();
                        //if responsecode <> 200 you should stop: should always be 200
                        String responsecode = connection.getResponseCode();
                        if (responsecode.equalsIgnoreCase("200")){
                              String inputLine;
                              StringBuffer input = new StringBuffer();
                              BufferedReader in =     new BufferedReader(     new InputStreamReader(connection.getInputStream()));
                                                                                //Get site response
                              while ((inputLine = in.readLine()) != null) {
                                    input.append(inputLine);
                              in.close();
                              response = response + input.toString();
                  }     catch(Exception e) {
                      response = response + "Error in using connection: " ;
                      response = response + e ;
          wdContext.currentContextElement().setResponse(response);

Hai ,
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/526bd490-0201-0010-038e-d3ff7eb1d16e
please check above link .
application server u have take load balancing click on next there u take click on radio button of Msg server .
Regards ,
venkat

Kill the RFC connection as soon as the call is completed in Web Dynpro JAVA

Hi Experts,
Please guide us how to kill the RFC Connection from web dynpro java as soon as the execution is completed.The FM connection (Adaptive RFC) isnt getting closed in IS-U side. Please guide us how to close them explicitly.
We are getting the following error
(102) RFC_ERROR_COMMUNICATION max number of cpic clients exceeded (300)

hi suvankar ,
wdContext.current<Modelname>_InputElement().modelObject().modelInstance().disconnectIfAlive();
use this option after executing your rfc, it will remove the connection to the r/3.
adn this
(102) RFC_ERROR_COMMUNICATION max number of cpic clients exceeded (300) -- is occuring because the pool size defined the jco destination is not sufficient, ask your basis team to increase the pool size.
Regards
Govardan

Web Dynpro LDAP

Hi
I want to access data from LDAP in a web dynpro application . Where can i find documentation on how to create an LDAP connector and access LDAP.
Thanks and Regards
Bhanu

Hi,
The technology you are looking for called JNDI and this is a part of Standart Java API. Go to the following Sun's tutorial and see the LDAP examples:
http://java.sun.com/products/jndi/tutorial/

Connect Web Dynpro Application to a Web service

Hi experts,
I am trying to connect a Web Dynpro application to a SOAP Web service.
I have downloaded the WDSL code and save it to a file in my hard disk.
I used the create model wizard (Import adaptive web service model) and created a model in my Web Dynpro application.
I have connected the component controller with the model and the view of the application to the controller.
All content node elements that have created automatically in the model, have in cardinality property the value 0..1.
I created input elements in the view but they are gray and not available (disabled).
The read only properity of the input elements has the value "false".
I tried to initiate the input element by putting the following code in wdDoInit() but with no luck.
wdContext.nodeRequest_ProcessTransaction().nodeProcessTransaction().nodeTransactionRequest().nodeHeader().nodeMerchantInfo().currentMerchantInfoElement().setAcquirerID("xxxx");
Can someone help with this?
Thanks in Advanced.

Hi,
After importing the model, you need to create the instance for the model. Instantiate the Request object and then set the input parameters. Then you have to call the execute function, then the model will be executed and you will get the data.
Also instead of putting the code which you have wriiten in init, you can use:
wdContext.nodeMerchantInfo().currentMerchantInfoElement().setAcquirerID("xxxx");
You can directly access the node, no need to traverse the whole hierarchy.
Regards,
Manoj

Connecting Web dynpro application to an SAP database

Hi
Iam new to the Web dynpro
I created a proto type for this screen.
In my project ,under one of the module "std Allo" option will come.By clicking that "std allo" screen will come.
In that Create , Export buttons is there.In that, table is present consists of Allowance Code, sub code,type,level,expense type,amount fields are present.
1. After clicking create button , these elements are present.
Save and Cancel buttons are present.
allowance code - (i/p field) , sub code - (i/p field) , period Type - (Dropdown by key) ,
Type - (Checkbox group) , level - ( Dropdown by key) , expense type - ( Dropdown by key) ,
trip - ( Dropdown by key) , currency - ( Dropdown by key) ,amount - (i/p field)
2.By clicking first row in the table ,,
delete ,edit cancel buttons are present.
same elements are present which i mentioned in step 1.
To connect to the R3 database, Function module is required.Can any one help what are the specifications i need to give to the ABAP team to develop a Function module for this appluication.
Please tell me procedure.
Regards
Sushma

Iam trying to connect my web dynpro application to R3 Database.
Iam having list screen consistts of Create and Export buttons and table.
Table Fields :
Allowance Code , sub code ,Type , Level , expense Type , amount
After clicking Create button ,
the screen consists of save and Cancel buttons.
Allowance Code -- (Input Field)
Sub Code -- (Input Field)
Period Type -
(Dropdown by key)
Type -
(Radio button Group)
Level --- (Dropdown by key)
Expense Type -(Dropdown by key)
Trip - (Dropdown by key)
Currency - (Dropdown by key)
Amount --(Input Field)
In the Create screen all these fields are present. But in the table in the List Screen it is taking only mandatory Fields.
For this our Abapers created
Fun Mod : Zup_Allowance_Input
Table     : ZMSTR_ALLOW
Iam getting error in this code under IdataType in this "Save Button ".
Can any one help me where i went wrong in this code.or else please provide the Code for this.
public void onActionSave(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onActionSave(ServerEvent)
     try{
          String str1=wdContext.currentStdAllowanceElement().getAllowanceCode();
          String str2=wdContext.currentStdAllowanceElement().getSubCode();
          IDataType dataType = wdContext.nodeStdAllowance().getNodeInfo().getAttribute("PeriodType").getDataType();
     String index=wdContext.currentStdAllowanceElement().getPeriodType();
     String str3=wdThis.getTextFromSimpleType(dataType,index);
                              wdComponentAPI.getMessageManager().reportSuccess("wetreer                "+str3);
     String arr[]={"Fixed","Actual"};
     for(int i=0;i<arr.length;i++)
IPrivateEtrecStdCreateView.ICheckElement e=wdContext.nodeCheck().createCheckElement();
wdContext.nodeCheck().addElement(e);
e.setType(arr<i>);
IDataType dataType = wdContext.nodeStdAllowance().getNodeInfo().getAttribute("").getDataType();
          String index=wdContext.currentStdAllowanceElement().getLevel();
          String str5=wdThis.getTextFromSimpleType(dataType,index);
wdComponentAPI.getMessageManager().reportSuccess("wetreer                 "+str5);
IDataType dataType = wdContext.nodeStdAllowance().getNodeInfo().getAttribute("ExpenseType").getDataType();
String index=wdContext.currentStdAllowanceElement().getExpenseType();
String str6=wdThis.getTextFromSimpleType(dataType,index);
wdComponentAPI.getMessageManager().reportSuccess("wetreer                 "+str6);
IDataType dataType = wdContext.nodeStdAllowance().getNodeInfo().getAttribute("Trip").getDataType();
String index=wdContext.currentStdAllowanceElement().getTrip();
String str7=wdThis.getTextFromSimpleType(dataType,index);
wdComponentAPI.getMessageManager().reportSuccess("wetreer                 "+str7);
IDataType datatype = wdContext.nodeStdAllowance().getNodeInfo().getAttribute("Currency").getDataType();
String index=wdContext.currentStdAllowanceElement().getCurrency();
String str8=wdThis.getTextFromSimpleType(dataType,index);
wdComponentAPI.getMessageManager().reportSuccess("wetreer                 "+str8);
String str9=wdContext.currentStdAllowanceElement().getAmount();
Zup_Allowance_Input input=new Zup_Allowance_Input();
          input.setAllow_Opt("C");
          input.setAllowance_Code(str1);
          input.setSubcode(str2);
          input.setType1(str3);
          input.setLevel1(str5);
                     input.setExpense(str6);
                     input.setCurr_Key(str8);
wdContext.nodeZup_Allowance_Input().bind(input);
wdContext.currentZup_Allowance_InputElement().modelObject().execute();
String str10=wdContext.currentOutputElement().get();
if(str10.equalsIgnoreCase("3"))
String errorMessage = "Inserted Successfully !";
IWDEventHandlerInfo windowHandler = wdControllerAPI.getViewInfo().getViewController().findInEventHandlers("OK");
IWDConfirmationDialog windowDialog = wdComponentAPI.getWindowManager().createConfirmationWindow(errorMessage, windowHandler, "OK");
windowDialog.open();
windowDialog.setWindowPosition(300,250);
}if(str10.equalsIgnoreCase("2"))
String errorMessage = "Duplicate Value !";
IWDEventHandlerInfo windowHandler = wdControllerAPI.getViewInfo().getViewController().findInEventHandlers("OK");
IWDConfirmationDialog windowDialog = wdComponentAPI.getWindowManager().createConfirmationWindow(errorMessage, windowHandler, "OK");
windowDialog.open();
windowDialog.setWindowPosition(300,250);
}catch(Exception e)
             wdComponentAPI.getMessageManager().reportSuccess(e.toString());
    //@@end
//@@begin javadoc:onPlugFromEtrecStdView(ServerEvent)
/** Declared validating event handler. */
//@@end
public void onPlugFromEtrecStdView(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
    //@@begin onPlugFromEtrecStdView(ServerEvent)
     wdContext.currentStdAllowanceElement().setAllowanceCode("");
        wdContext.currentStdAllowanceElement().setAmount("");
        wdContext.currentStdAllowanceElement().setSubCode("");
    //@@end

Want docs for Web Dynpro ABAP

Hi All ,
Can anyone please send me the Docs or link for Web Dynpro ABAP .
Thanks in advance
Rahul

Hi,
Web Dynpro ABAP
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/db22242d-0701-0010-28a2-aeaa1fefd706
Also, I have the official Web Dynpro for ABAP documentation. Please let me know if I should send it to you.
Hope that the following also helps you.
Web Dynpro for ABAP (WD4A, WDA) is the SAP standard UI technology for developing Web
applications in the ABAP environment. It consists of a runtime environment and a graphical
development environment with special Web Dynpro tools that are integrated in the ABAP
Workbench (SE80).
Web Dynpro offers the following advantages for application developers:
? The use of declarative and graphical tools significantly reduces the implementation
effort
? Web Dynpro supports a structured design process
? Strict separation between layout and business data
? Reuse and better maintainability by using components
? The layout and navigation is easily changed using the Web Dynpro tools
? Stateful applications are supported that is, if the page is changed and the required
data remains intact so that you can access it at any time throughout the entire
application context.
Note that stateless applications are not possible.
? Automatic data transport using data binding
? Automatic input check
? Automatic operation of the Web Dynpro application using the keyboard
? User interface accessibility is supported
? Full integration in the reliable ABAP development environment
Web Dynpro Architecture
Definition
Web Dynpro is the SAP NetWeaver programming model for user interfaces (UIs).
The Web Dynpro model is based on the Model View Controller paradigm, and has the
following features that build on the classic dynpro model:
? Clear separation of business logic and display logic
? Uniform metamodel for all types of user interfaces
? Execution on a number of client platforms.
? Extensive platform independence of interfaces
Structure
Metamodel Concept
Web Dynpro provides support for developing Web representation of a business application.
You use specific tools to describe the properties of a Web Dynpro application in the form of
Web Dynpro metadata. The necessary source code is then generated automatically and
executed at runtime. In addition to the events offered by the framework, you can also define
your own events for a Web Dynpro application. However, the event handling must always be
programmed in separate source code areas which are executed automatically when the event
is triggered at runtime.
In Web Dynpro, each user interface is always made up of the same basic elements. These
elements of the metamodel can be statically declared using Web Dynpro tools.
It is also possible to implement elements of the metamodel at runtime and to change them or
reintegrate them at runtime. Using these implementations, you can make any changes or
enhancements to a user interface that has been created by declarative methods by
generating new interface structures at runtime.
This means that you can combine declarative processes and the implementation of source
code.
Graphical Development Tools
To support this declarative concept, both the SAP NetWeaver Developer Studio and the
ABAP Workbench contain a range of Web Dynpro tools. You can therefore generate a large
proportion of a Web Dynpro application using the tools provided, without having to create your
own source code. This applies to the following parts of the application:
? Data flow between the front end and back end
? Layout of the user interface
? Properties of user interface elements
The Web Dynpro tools enable you to create source text areas manually within generated
source texts. These areas are not changed if the source code is regenerated.
Separation of Business and Application Logic
Using Web Dynpro enables a clear separation of business logic and display logic. A Web
Dynpro application runs on the front end and has local or remote access to the back end
system via a service. This means that the display logic is contained in the Web Dynpro
application, while the business logic and the persistence of the business objects run in the
back end system. The following options are currently available for connecting Web Dynpro
applications and the back-end system:
? An interface generated using adaptive RFC, through which BAPIs of an SAP system
can be called
? An interface for calling Web services
? A self-generated interface
The source code required for connecting the Web Dynpro application can be generated
from a UML definition of the Web Dynpro interface. A UML definition can be imported
into the Web Dynpro tools as an XML file.
Conversion of the Model-View-Controller
Conversion of the Model-View-Controller Programming Model
Every Web Dynpro application is structured according to the Model View Controller
programming model:
? The model forms the interface to the back end system and thus enables the
Web Dynpro application access to data.
? The view is responsible for the representation of the data in the browser.
? The controller lies between the view and the model. The controller formats
the model data to be displayed in the view, processes the user entries made by the
user, and returns them to the model.
/people/thomas.jung/blog/2006/06/20/web-dynpro-abap-demonstration-videos
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
Reward points if useful
Regards
Anji

Can a web dynpro call a web service that calls a jsp?

I'm trying to connect a web dynpro java [2004s] calling a web service that calls a jsp page. then a jsp page that calls a web service that goes to the web dynpro. is this possible?
Thanks!

Have you checked out the following J2EE tutorial:
http://www.netbeans.org/download/docs/41/j2ee-tutorial/CMP2.html#wp90149
...The Roster module maintains the team rosters for players in sports leagues. The example has five components. The RosterClient component is an application client that accesses the RosterBean session bean through the bean's remote interfaces. RosterBean accesses three entity beans--PlayerBean, TeamBean, and LeagueBean--through their local interfaces....
Also: http://www.netbeans.org/download/docs/41/j2ee-tutorial/Session4.html#wp82980
Passing an Enterprise Bean's Object Reference

Authentication Screen when accessing Web Dynpro Application

Hi,
We are encountering a situation wherein when we call the Web dynpro application, it asks for Authentication. The way we do is a bit tricky. We have the following set up;
1. We access the CRM_IC ( Web Gui) in CRM and from where we try to create orders in the backend system i.e., ECC6.0 (IS_Utilities).
2. For creating orders we launch the FOP ( in our case it is DYNPRO) from CRM. So ECC screen is opened through ITS using SSO.
3. In addition to this we built a web dynpro application to be called from the DYNPRO (step 2).
4. When the Web dynpro application is accessed it asks for Login details though it has already logged into ECC using SSO.
PROBLEM: CRM -- using ITS / SSO --> ECC --> Web dynpro ?? Authentication screen.
Design:
We are using WDY_EXECUTE_IN_PLACE to open the Web dynpro in SAPGUI. It is working fine when we run the Web dynpro application from SAPGUI, only the problem is when we do the above steps 1 - 4.
Tried using the following logic as well but the same result.
CREATE OBJECT viewer EXPORTING parent = empty_container.
CALL METHOD viewer->enable_sapsso
CALL METHOD viewer->DETACH_URL_IN_BROWSER
EXPORTING url = urlc.
cl_gui_cfw=>flush( ).
So is it possible to over come the problem. Basically, we don't want the Authentication screen it should use SSO.
SSO is already set up in the system.
Any inputs will be highly appreciated.
Thanks,
Roopesh

resolved!!!!
CRM had wrong url to connect to web dynpro aplication
Edited by: Aditya Deshpande on Mar 3, 2010 9:59 AM

Web Dynpro concept

Hi all,
What is web dynpro concept in ABAP. What are the future scope for the same.
Regards,
John

Hi,
Web Dynpro ABAP
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/db22242d-0701-0010-28a2-aeaa1fefd706
Hope that the following also helps you.
Web Dynpro for ABAP (WD4A, WDA) is the SAP standard UI technology for developing Web
applications in the ABAP environment. It consists of a runtime environment and a graphical
development environment with special Web Dynpro tools that are integrated in the ABAP
Workbench (SE80).
Web Dynpro offers the following advantages for application developers:
The use of declarative and graphical tools significantly reduces the implementation
effort
Web Dynpro supports a structured design process
Strict separation between layout and business data
Reuse and better maintainability by using components
The layout and navigation is easily changed using the Web Dynpro tools
Stateful applications are supported u2013 that is, if the page is changed and the required
data remains intact so that you can access it at any time throughout the entire
application context.
Note that stateless applications are not possible.
Automatic data transport using data binding
Automatic input check
Automatic operation of the Web Dynpro application using the keyboard
User interface accessibility is supported
Full integration in the reliable ABAP development environment
Web Dynpro Architecture
Definition
Web Dynpro is the SAP NetWeaver programming model for user interfaces (UIs).
The Web Dynpro model is based on the Model View Controller paradigm, and has the
following features that build on the classic dynpro model:
Clear separation of business logic and display logic
Uniform metamodel for all types of user interfaces
Execution on a number of client platforms.
Extensive platform independence of interfaces
Structure
Metamodel Concept
Web Dynpro provides support for developing Web representation of a business application.
You use specific tools to describe the properties of a Web Dynpro application in the form of
Web Dynpro metadata. The necessary source code is then generated automatically and
executed at runtime. In addition to the events offered by the framework, you can also define
your own events for a Web Dynpro application. However, the event handling must always be
programmed in separate source code areas which are executed automatically when the event
is triggered at runtime.
In Web Dynpro, each user interface is always made up of the same basic elements. These
elements of the metamodel can be statically declared using Web Dynpro tools.
It is also possible to implement elements of the metamodel at runtime and to change them or
reintegrate them at runtime. Using these implementations, you can make any changes or
enhancements to a user interface that has been created by declarative methods by
generating new interface structures at runtime.
This means that you can combine declarative processes and the implementation of source
code.
Graphical Development Tools
To support this declarative concept, both the SAP NetWeaver Developer Studio and the
ABAP Workbench contain a range of Web Dynpro tools. You can therefore generate a large
proportion of a Web Dynpro application using the tools provided, without having to create your
own source code. This applies to the following parts of the application:
Data flow between the front end and back end
Layout of the user interface
Properties of user interface elements
The Web Dynpro tools enable you to create source text areas manually within generated
source texts. These areas are not changed if the source code is regenerated.
Separation of Business and Application Logic
Using Web Dynpro enables a clear separation of business logic and display logic. A Web
Dynpro application runs on the front end and has local or remote access to the back end
system via a service. This means that the display logic is contained in the Web Dynpro
application, while the business logic and the persistence of the business objects run in the
back end system. The following options are currently available for connecting Web Dynpro
applications and the back-end system:
An interface generated using adaptive RFC, through which BAPIs of an SAP system
can be called
An interface for calling Web services
A self-generated interface
The source code required for connecting the Web Dynpro application can be generated
from a UML definition of the Web Dynpro interface. A UML definition can be imported
into the Web Dynpro tools as an XML file.
Conversion of the Model-View-Controller
Conversion of the Model-View-Controller Programming Model
Every Web Dynpro application is structured according to the Model View Controller
programming model:
The model forms the interface to the back end system and thus enables the
Web Dynpro application access to data.
The view is responsible for the representation of the data in the browser.
The controller lies between the view and the model. The controller formats
the model data to be displayed in the view, processes the user entries made by the
user, and returns them to the model.
Web Dynpro ABAP Demonstration Videos
http://help.sap.com/saphelp_nw04s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
Cheers,
vasavi.v

Search for users in a particular LDAP through Web Dynpro code...

Hi Experts,
Let me try explaining my problem. In my project we are using two ADAM LDAPs. One for storing internal users and the other for storing external users. I have configured the portal to connect to both the LDAPs. I am able to search for the users created in both the LDAPs through portal Indentity Management.
I am trying to search for the users in a specific LDAP through Web Dynpro coding... I am not lucky enough to get it done. Let me explain you what I did.
I created a custom attribute for UME through config tool. Gave a physical mapping for the custom attribute in dataSourceConfig_xxx.xml to the LDAP attribute distinguishedName which returns the distinguished Name for the user in ADAM LDAP.
For Example: Custom attribute in UME is ldapuser which is mapped to distinguishedName attribute in ADAM LDAP in dataSourceConfig_xxx.xml.
When I do a search for the users in a particular LDAP, I am trying to put a filter to the newly created ldapuser attribute to distinguish between the two LDAPs.
The search will result if I pass the value as '*'. If I try to specify the user path for the LDAP in this attribute it doesnt result any data.
For example:
userSearchFilter.setSearchAttribute(
     "com.sap.com.cust.admn",
      "ldapuser",
     "OU=16482515,OU=Members",
     ISearchAttribute.LIKE_OPERATOR,
     false);
The above code will not return the data, whereas
userSearchFilter.setSearchAttribute(
     "com.sap.com.cust.admn",
      "ldapuser",
     ISearchAttribute.LIKE_OPERATOR,
     false);
Will result with user list from both the LDAPs.
If anyone tried searching for users in a particular LDAP through code, please help me with this issue.
Thank you in advance.
Regards,
Rekha Malavathu

I just figured it out. Under "group-policy GroupPolicy_COMPANY_SSL_VPN attributes", I had to add "vpn-simultaneous-logins 15". Apparently, it was using the value "vpn-simultaneous-logins 0" under the NOACCESS group policy.

LDAP connectivity in web Dynpro

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