Large Production Web Dynpro development

Everyone knows how to develop in ABAP in a way that works in team environments and provides reuse, but this is not clear within Web Dynpro. I'd like to see a tutorial or overview of how large Web Dynpro projects with multiple developers should be structured in terms of using DTR, interfaces between components, database design, etc. Until DTR becomes available, all Web Dynpro development is just "playing around", but when it gets here, I hope SAP can provide an overview of the right way to develop.

Hi Matt,
i would like add the following remarks to your suggestion:
1. Availability of DTR
Nearly nobody, except SAP internals and ramp up customers have a DTR available today. So the prerequisites for 99.9999% of all other SDN users to follow the steps in a tutorial (or overview) don't exist. This is crucial IMHO, because you have to start with DTR activities to be able to do anything.
2. How to get DTR running
Configuration and efficient usage of the DTR (there are minimum 4 possible development scenarios) is enough to fill a big, at least 3-hour tutorial without even having touched Web Dynpro (let's call it Part 1).
3. Backend access in a productive scenario
is the next point. What would you like to see included? EJB (with BMP or CMP?), JDO, ABAP (Adaptive RFC and/or JCA?), Web Services? Again, this is enough to fill an own tutorial (let's call it Part2).
4. Design and usage of Web Dynpro
and some other, for a full featured article necessary, types of Development Components. This is rudimentary documented in the NW documentation, but who of the Sneak Preview and other users work with them so far? What are best practices and common traps designing them (let's call it Part3).
And last but not least...
5. The Composite application framework (CAF)
and especially the promised features of it's designer and the generation framework behind it will probably disprove most if not any of the working practices (at least concerning point 3) mentioned in a tutorial.
The CAF is the so far missing piece in the puzzle, because it connects services of any type between each other and to the presentation layer (including Web Dynpro UI patterns nobody used upto now) based on metadata models (let's call it Part 4).
So from my point of view we should think about reducing the requirements what should be covered by the upcoming article/tutorial to the (real world) work with DCs.
Best regards
Stefan

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Web service in Web Dynpro development Component

Hi All,
I have created a web service in SAP GUI and I have saved the WSDL file on my local PC.
Now when I create a web service model in a simple web dynpro project it works perfectly.
But when I do the same in a web dynpro development component; as soon as the web service model instance is associated with the activity in the DTR my application get hanged. I have to quit my NWDS. When I reopen NWDS my application shows following errors:
Kind Status Priority Description Resource In Folder Location
Error XMLTokenWriter cannot be resolved (or is not a valid type) for the argument writer of the method serialize Char1.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies/types line 57
Kind Status Priority Description Resource In Folder Location
Error typeRegistry cannot be resolved or is not a field Z_WS_GETEMPINFO_FULLSoapBindingStub.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies line 29
Kind Status Priority Description Resource In Folder Location
Error transportBinding cannot be resolved or is not a field Z_WS_GETEMPINFO_FULLSoapBindingStub.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies line 22
Kind Status Priority Description Resource In Folder Location
Error SOAPSerializationContext cannot be resolved (or is not a valid type) for the argument context of the method serialize Char1.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies/types line 50
Kind Status Priority Description Resource In Folder Location
Error SOAPDeserializationContext cannot be resolved (or is not a valid type) for the argument context of the method deserialize Char1.java JD2_ADBESP6_Dtestwebservicesap.com/src/packages/com/adobe/mo_web1/proxies/types line 26
Regards
sid

Hi Sidharth,
Which version of NWDS you are using. I was facing the same problem with SP16 sometime back.
I did find a workaround to do that. See, whenever you will create the WS Model in Web Dynpro DC, it will ask you to add some file in DTR..right!!........ do one thing press "Cancel" or "No" there. Then studio will ask one more time to add the files, in different dialog box though. Add the files from the second dialog box rather than the first one.
Regards,
Mausam

How to connect to data base in web dynpro development?

hi,
I am a green man in web dynpro development.I don't know how to create a connection to database in web dynpro development.I don't know wether we must create a DC to commit the mission.Hope to hear from you.Thank you!

Hi ,
For information on this ,look at these loops.
Webdynpro and Oracle
Re: Oracle Packages
Re: BW connection to ORACLE
Re: WebDynpro vs Oracle
Regards,
Praveen

SAP tool to estimate time for web dynpro development project

Hi,
Is there any standard SAP tool available to estimate time for web Dynpro development project?
Thanks and Regards,
Deepti

Hi Deepti
An implementation of Webdynpro based UI could be estimated by a 'standard' technique like any other U:
1. Try to count the number of views/screens/popups in your application. The estimation time will be proportional to the quantity.
2. Try to count the number of external interfaces would be used in the application. For example, quantity of necessary BAPI invocations (RFC), quantity of Web-service invocations or EJB calls. Also quantity of native JDBC queries if any.
Test = Nviews x Hview + Nint x Hint, where Hview & Hint time in hours for average implementing of one UI view and time for adding of average service invocation.
BR, Sergei

How to Login to Web Dynpro developer studio in real time scenario.

Hi,
1. How to Login to Web Dynpro developer studio in real time scenario.
Do we have login pad and User id to enter developer studio.
Is the user id for login maintained in UME of J2EE engine.
2. How to stop and start j2ee engine in real time. Is it same SAP Management console is used like in Demo version.
3. If I use central server, Do I have to install GUI like SAP R/3 GUI to Develop, test and deploy my application.
Cheers,
Sam

Hi,
What do you mean with real time scenario? Do you talk about runtime?
NetWeaver Developer Studio (NWDS) is only for design time and you install it on the local PC/laptop of the developer. The 'connection' between NWDS and engine is specified in the preferences (Window->Preferences->SAP J2EE engine) of NWDS. The development track is in 'real life' (e.g. if the engine is a remote one) connected with support from SLD (System Landscape Directory) which is a tool for managing the NWDI (NetWeaver Development Infrastructure). In normal case, there are so-called 'development configurations' that can be imported into NWDS (Window->Preferences->Java Development Infrastructure).
For starting and stopping the engine, there are several possibilities: SAP MMC, view in NWDS or console.
If you've a central server, you connect your NWDS to this central server and then you can deploy to this central server.
Regards,
Jan

How to Logon to Web Dynpro developer studio in real time scenario.

Hi,
     1. How to Login to Web Dynpro developer studio in real time scenario.
         Do we have login pad and User id to enter developer studio.
         Is the user id for login maintained in UME of J2EE engine.
     2. How to stop and start j2ee engine in real time. Is it same SAP Management console is used like in Demo version.
     3. If I use central server, Do I have to install GUI like SAP R/3 GUI to test and deploy my application.
Cheers,
Sam

Hi,
What do you mean with real time scenario? Do you talk about runtime?
NetWeaver Developer Studio (NWDS) is only for design time and you install it on the local PC/laptop of the developer. The 'connection' between NWDS and engine is specified in the preferences (Window->Preferences->SAP J2EE engine) of NWDS. The development track is in 'real life' (e.g. if the engine is a remote one) connected with support from SLD (System Landscape Directory) which is a tool for managing the NWDI (NetWeaver Development Infrastructure). In normal case, there are so-called 'development configurations' that can be imported into NWDS (Window->Preferences->Java Development Infrastructure).
For starting and stopping the engine, there are several possibilities: SAP MMC, view in NWDS or console.
If you've a central server, you connect your NWDS to this central server and then you can deploy to this central server.
Regards,
Jan

Trial version of SAP Web Dynpro Developer Studio.

Hi Experts,
I have downloaded and installed the trial version of Java SAP NetWeaver Application Server.
I now need to download Java SAP Web Dynpro Developer Studio.
Can any one tell me where I can download the trial version of SAP Web Dynpro Developer Studio?
Thanks,
Anna

Hi,
I think u can find n/w developer studio in the service market place. http://service.sap.com/swdc
In the left panel go thorugh :-
Downloads > Support Packages and Patches > SAP NetWeaver > SAP NETWEAVER > SAP NETWEAVER 7.0 > Entry by Component > Developer Studio
Rgds
Radhakrishna

SICF Access for Web Dynpro Development

Developer wants access to SICF to be able to test any Web Dynpro Development. Currently no developer has access and Basis only gives access when requested - and only for short time. I believe developers should have access. Wondering how others have this setup. Thanks!

> If a developer creats an app via SE80 - which does the same in ICF for the service - then SICF access is required.
Are you sure? Or is the tcode check only appearing somewhere in a trace?
If that is true, then ICF service developers will anyway be able to start SICF directly. Please check the coding location of the check from the trace, if it is calling FM AUTHORITY_CHECK_TCODE (which I suspect it is...) then verify in SE97 that an SE80 developer can use (limited, coded...) SICF functionality from other contexts without starting it directly.
What you can also do is protect the ICF services using the authorization group concept (including those you are not using...). If the developer wants to use one (in a new development) then it should be released for them by granting them access to it (authorization object S_ICF_ADM in their role) for development work and then ideally object S_ICF added to the service user they are using for development as well. If they are developing the role for the application together with the application coding development (this is the ideal scenario in my opinion for a knowledgable developer) then give them that access as well in PFCG for the role they are developing.
I think it can safely be said that most developers can be trusted, but also to do stupid things though... and they enter their own user ID in the connection data..
That is a reality. If you trust them and train them and collaborate with them to improve security - then they will be your best friends and understand more about security as well (to protect themselves from their own user ID's...).
This is a very interesting topic. Thanks for raising it.
Cheers,
Julius
ps: I don't like posting links, because I see it as an insult to the person who asked the question as not having done a search and not knowing what they are talking about. But for the benefit of those who use the search and find this thread... please read this documention (or the one which is relevant for your release - I choose a reasonable release level...).
http://help.sap.com/saphelp_nw04s/helpdata/en/61/d93822a88e15489a9391f309767366/content.htm
Edited by: Julius Bussche on Mar 5, 2009 10:31 PM

Creating Room Instance from Web Dynpro Development Component

Hi Experts,
I would like to instantiate a Room Instance based on a pre-created Room Template from within a Web Dynpro Development Component. I had a look at the Collaboration Rooms API Cookbook, which provides all the code examples I need, but which asks that I import the following classes:
import com.sap.ip.collaboration.room.api.IRooms;
import com.sapportals.portal.prt.runtime.PortalRuntime;
Problem is I don't have and can't find those libraries. I am developing in a track on the DTR and all solutions that I have found to the problems thus far require me to import a local jar file. Surely I should rather import a Software Component with the required library into my project? Does anyone know what the name of this Software Component is or what the correct way is to do this?
Also, a somewhat related problem. If I want to create a Room Instance from an Application Service, how would I go about doing this. Unlike with a Web Dynpro project, I can't setup the build path or Used DCs, so how will I gain access to that library?
Thank you,
JP

Beevin, thanks for the reply.
I am aware that adding the jars manually to the build path is a possibility, but isn't this a local only solution? What I mean is, lets say I do this and check the code into the DTR - surely the code won't compile on my co-workers' machines as the paths to the jar files are different for them? Unless you mean to somehow add the jar file from the server, in which case could you please elaborate on how to do this?
This still doesn't solve the application service problem, does it? How can I access those library from the CAF DC?
Thanks

Web Dynpro Development Components missing for MSS

Hey Guys...
The following BPs are installed on our landscape:
○       Business Package for Manager Self-Service (SAP ERP) 1.3
○       Business Package for Common Parts (SAP ERP) 1.3
○       Business Package for Project Self-Service (SAP ERP) 1.0
○       Business Package for HR Administrator (SAP ERP) 1.1
The ECC is EHP 3, SP 14 and EP is 7.0 SP 14
I've been trying to set up iViews for MSS but I see that all Web Dynpro Applications specified in the technical information of iViews are missing. I searched for Web Dynpro Development Components in the EP and all MSS related WDC are just missing.
According to SAP Help Documentation (http://help.sap.com/erp2005_ehp_03/helpdata/en/76/77594d165144a1a9bff9aae1e26b26/content.htm) these are required:
Web Dynpro Development Components:
○       PCUI_GP
○       MSS
○       SAP_PSS
Where can I get them??? Is it possible our basis didn't install the right Business Package?

Seems you have got right business packages, though have a look at note [1303362|https://websmp230.sap-ag.de/sap%28bD1lbiZjPTAwMQ==%29/bc/bsp/spn/sapnotes/index2.htm?numm=1303362] to confirm dependency.
"but I see that all Web Dynpro Applications specified in the technical information of iViews are missing."
Well this could be because of errorsome business package deployment, you can still check list of deployed components from SDM and if there is any error log for deployement, you should try to deploy them again(update existing components).
Hope this helps. If not then probably you should go Content Admin - WebDynpro and see list of application listed under MSS.. if those referred applications are available then try to execute them.
And last one.. if you "think" they wont run.. or you have actually tried to run MSS and none of applications are working. you should be able to run standard package without any major configuration chanegs.. so give it a go.. and see if you encounter any error.
Cheers

Web dynpro developement works with SAPGUI?

Hi,
I am a developer working most of my time in 4.6C. Recently i started to upgrade myself. I have studied about web dynpro and came to know that All of business suite developement is done in Web dynpro, be it java or abap.
My question here is once a web dynpro is developed independent of whether it is developed in ABAP or JAVA, will work in all defferent forms of ui : sapgui, webgui, etc?
Put in other words, does business suite developed in web dynpro be accessable via a normal SAPgui?
Regards,
harikrishna.
Edited by: harikrishna indugu on Feb 24, 2009 4:04 PM
Edited by: harikrishna indugu on Feb 24, 2009 4:04 PM

>
harikrishna indugu wrote:
> Hi,
>
> This leads me to a fundamental question:
>
> For a client running ERP 6.0 for his application, a business user should have both sapgui ( For ECC applications like PP/MM/SD ) and portal/business client for SCM/CRM/SRM/HCM etc? Isn't it ridiculous business user need to know how to use both???
>
> Thanks,
> Harikrishna Indugu.
This is where the NetWeaver Business Client has its best use case - when combining legacy SAPGUI transactions with newer Web Dynrpo ones. Like the portal, the two types of transactions are ran within the same navigation frame. However because the NWBC is a desktop application, the technical integration of the SAPGUI is much more efficient. You get easy navigation between SAPGUI and Web Dynpro screens.

Time estimation for Web Dynpro development

Hello all,
i would like to know if someone could tell me how much time do we have to estimate when using web dynpros to recreate R/3 transactions (with the convert tool) ?
In fact we must make an offer for a customer and would like to use Web Dynpros (since this customer wants that all developments are J2EE based and not related to R/3).
Since we don't yet have any experience with this, it's not easy to make an estimation of the effort that it would take.
So if you know what is the average time to make an R/3 transaction Web Dynpro enabled, please let me know.
Thank you in advance,
Xavier

Hi Xavier,
what i know so far about the convert tool is, that it allows to convert classic ABAP dynpros to Web Dynpro, but not between the ABAP Web Dynpro runtime and the Java Web Dynpro runtime.
Among other things, the PAI and PBO modules of the classic dynpro are reused including possible input validations which may directly access some tables of the ABAP dictionary.
Since all these things are not at all directly accessible by Web Dynpro for Java and the J2EE engine in general, the only thing, that might be transferrable IMHO is the layout information (buttons, inputfields...).
Regards
Stefan

Appraisal Templates - Custom Web Dynpro developement

Hi All,
I have a requirement to display the new Appraisal document templates created using a Web Dynpro application.
How do I go about doing this? How can the Appraisal templates be exposed to the Web Dynpro application?
Regards,
Ashwini.

Hi Bhagat
You have raised a very good point,
As far as i know there is no such option available in NWDS ,there is a separate thread called
POLL: Web Dynpro UI elements - enhancement proposals
Please do post your same query there, hope SAP considers this, we all wait for the same feature in the forthcoming versions of NWDS
Regards
Chaitanya.A

Can please forward me web dynpro DC scenarious in NWDS 7.0 using model?

Hi,
Experts,
Please pass some web dynpro development component simple scenarios in NWDS 7.0.18 using model part (like getting data from sap and displaying it) as i am new to this technology.
Thanks in advance,
Shabeer ahmed

Hi,
Please refer to these links..
[https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b083f76a-708c-2b10-559b-e07c36dc5440]
[https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/a137c339-0b01-0010-a688-a87b88706845]
Hope it helps...
Jithin.

Save Web Dynpro Data

Hi everyone,
I am working on implementing a GP process in which one of the requirements involves the user being able to save data entered in a Web Dynpro form before moving onto the next action in the process. Basically, the user requires the ability to launch the process, fill in some data and save the data without completing the process step (i.e., the request is in a 'draft' mode). That way, the user can close the task for an indefinite amount of time, launch it again in the future, and the data entered beforehand will be displayed. I am aware that I can persist the data out to an external table, but I was wondering if there is an easier way (i.e., maybe save it in the process context where it can loaded from when the user launches the task again.) Right now, I am using NW04s SP09 with Web Dynpro development components implementing the GP interface.
Thanks,
Greg

Greg,
You can save your data as an entity object using CAF Core. It will persist the data in the CAF layer. Once saved, you can use it on any subsequent GP steps.
Thanx,
Mahesh

Large Production Web Dynpro development

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