Find keyword used in Web Dynpro Application?

Hi folks,
I have a simple question with regards to Web Dynpro for ABAP: Is it possible to search in my application for a keyword that I have used?
For e.g., I wish to search for the keyword "loop" to find out which parts of my program have this matching string. I have many views, windows, and code in my component controllers.
Is that possible? Please advise. Thanks in advance.

Read this thread:
how to view COMPONENTCONTROLLER interface 's implement class
With my approach you can access the generated class and search on it globally from SE24 (efectively searching across the whole component).
With Thomas approach you can only search on controller by controller basis but may be a bit less complicated to use.
Regards
Edited by: Alejandro Bindi on Oct 24, 2008 12:53 AM

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Can CVS be used with Web Dynpro Applications?

Is it okay to use CVS as the source control system for Web Dynpro apps? Or does the DTR have to be used? How would you use CVS within NetWeaver Developer Studio?

Hi Dora,
I hope at this time there should not be any confusion, because JDI can be used for Webdynpro Applications,right from devlopment to production you can maintain the versioning.
Please go through the following links and explore more on JDI.
You need to install the JDI separately. Go to http://service.sap.com/patches -> Entry by Application Group -> SAP Net Weaver -> SAP NETWEAVER -> SAP NETWEAVER 04 -> NWDI -> JDI 6.40 -> #OS independent
https://www.sdn.sap.com/sdn/downloaditem.sdn?res=/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/a1-8-4/sap enterprise portal 6.0 sp4 netweaver stack 4 developer sneak preview download.abst
https://media.sdn.sap.com/public/eclasses/nwbcil/Java_Development_Infrastructures_files/Default.htm#nopreload=1
http://help.sap.com/saphelp_nw04/helpdata/en/01/9c4940d1ba6913e10000000a1550b0/content.htm
i will be happy to join with you for any JDI related issues.
hope this info helped you
Regards,
RK

Using EJBs in Web Dynpro Applications

I have recently started to develop Web applications using the Web Dynpro framework. Coming from a pure J2EE world, I must admit that Web Dynpro has a few innovative features that I find interesting for user interface development. The use of component & view contexts, for example, is not unlike the ActionForms that one may find in a Struts application, but pushed a bit further. No complaints here.
What I do have some problems with is the whole CommandBean paradigm that is put forth by SAP (refer to the document <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webdynpro/using%20ejbs%20in%20web%20dynpro%20applications.pdf">Using EJBs in Web Dynpro Applications</a>).
I do understand the usefulness of defining a model that will be used to generate and eventually bind to Context data structures. That's fine. What I do object to is the use of a so-called CommandBean to play that role. Again, coming from a J2EE world, I am familiar with the BusinessDelegate pattern - which would typically be used by a client application to invoke business logic on the server side. I would propose that a better, cleaner way of integrating EJBs with the Web Dynpro framework would be to use a BusinessDelegate for invoking business logic, and importing a separate and distinct ModelBean (instead of a CommandBean) to be used for defining and binding to Context data.
I have built one Web Dynpro application thus far. Instead of using a CommandBean, I created a ModelBean that extends my business object DTO (Data Transfer Object) (which is quite appropriate for that role, given that it implements all the get & set methods that are required for the business data that I need to model). My Web Dynpro application also makes use of an independant BusinessDelegate that is packaged with my EJB DC - this is a standard best practice on J2EE projects. I have been asked by the people working with me to modify this architecture to bring it more in line with the SAP way of doing things. I am open-minded and willing to learn and accept new ways of thinking and doing things. However, I fail to understand the usefulness of merging structure and behaviour by resorting to CommandBeans:
- It violates the MVC paradigm by having one object (the CommandBean) serve as both model AND controller as far as the Web Dynpro application is concerned. The CommandBean is obviously a model - since it is literally imported as such into the Web Dynpro application. It is ALSO a controller from the Web Dynpro's application perspective, since all calls to the back-end go thru the CommandBean via one or more of its execute_xxx methods. In contrast, the use of a business delegate by the Web Dynpro application clearly separates the model (the CommandBean... or rather, a more suitably named ModelBean) from the controller (BusinessDelegate).
- Doesn't carry its own weight. In other words, I haven't yet been provided with any valid justification for going thru the extra effort of coding the CommandBean's execute methods. It's been proposed to me that it somehow serves as an abstraction layer between the Web Dynpro application and the business logic. I would argue that it is the BusinessDelegate's role to abstract away the back-end logic from clients. If one does have a BusinessDelegate available, I would argue there's no need to code execute methods in a separate CommandBean. To prove my point, I would simply point out that all of the CommandBean examples that I have seen so far, either in How-To documents, or in production code, all follow the same pattern....
CommandBean.execute_doSomething() calls BusinessDelegate.doSomething()
Not a heck of an "abstraction" layer... I would in fact argue that it is worse than useless. If some major change occurs in the business logic that requires changing the doSomething() operation, we expect of course to modify the BusinessDelegate. The Web Dynpro client will also presumably need to be modified - that's to be expected, and unavoidable. But then, we'll also need to go about and change the CommandBean's execute_doSomething() method - again, extra work for no apparent benefit. Adding and removing business methods has the same implication. All this for an layer that simply adds the prefix execute_ in front of all business method calls... Is this "abstraction layer" worth the cost of creating and maintaining it ??
- Unnecessarily complicates error handling. I have been told that for technical reasons, it is recommended that all exceptions thrown by the CommandBean be of type WDException or WDRuntimException. But what if the client application needs to react differently to different failure scenarios ? When I create a business object, I might wish to provide the user with an error messages if connection is lost to the backend, and with a different error message if an object already exists in the database with the same attributes. In order to do that, I will have to catch the WDException, extract the cause, and continue processing from there... possible, yes, but clearly less standard and more labor intensive than the classical try/catch mechanism.
To say nothing about the fact that SAP's own API documentation clearly states that applications using Web Dynpro can reference and catch WDExceptions, but THEY MUST NOT THROW OR EXTEND IT !
- Produces unnecessary DCs. Page 6 of the aforementioned document presents an architectural view of a Web Dynpro project that uses a CommandBean. Why an extra DC for the CommandBean ?? I created my ModelBean class right inside the Web Dynpro project (in the Package view). That, to me, is where this class should reside, because it is created for no other reason that to be used by this particular Web Dynpro application. What is the benefit of placing it in its own independant DC ?
- Not a typical application of the Command pattern. The well-documented command pattern (Design Patterns - Gang of Four) has been devised mainly to enable encapsulation of request as objects, thereby making it possible to:
- specify, queue and execute requests at different times
- decouple execution of a command from its invoker
- support undo operations
- support logging changes so that they can be reapplied in case of system crash making it possible to assemble commands into composite commands (macros), thereby structuring a system around high-level operations built on primitive operations.
None of this applies to the way the SAP CommandBeans are being used. Not that much of an issue to people new to J2EE and/or OO development... but quite confusing for those already familiar with the classic Command pattern.
At this point, I fail to understand the advantage of merging structure (model) and behaviour (execute methods) through the use of a unique CommandBean object. Am I missing something ?

Hi Romeo,
You would be disappointed, this reply ain't anywhere nearby to what you are talking about...
I wanted to mail you, but you have not mentioned your email in your profile.
I am really impressed by your flair for writing. It would be far better had you written a blog on this topic. Believe me, it would really be better. There is a much wider audience waiting out there to read your views rather than on the forums. This is what I believe. To top it, you would be rewarded for writing something like this from SDN. On the blogs too, people can comment and all, difference being there you would be rewarded by SDN, here people who reply to you would be rewarded by you. Doesn't make much a difference.
Anyways the ball is still in your court
As far as I am concerned, it has still not been much time since I have started working on Web Dynpro. So can't really comment on the issue...
Bye
Ankur

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Rajat

Looks like i was missing some step... I deleted everything and then re created and this time it works.

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Hello,
I am following the HowTo guide - Use the BI Java SDK in a Web Dynpro Application
at <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e49be590-0201-0010-0c83-fc20e5da124f">this link</a>.
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Using a Deployable Proxy in a Web Dynpro Application

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We have a Web Dynrpo application whose model is built from a set of Java business objects (POJOs.) These Java business objects currently make calls to a back-end R/3 system using JCo. We would like to provide the ability to allow the calls to be made over Web Services to the back-end system.
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The tutorials for using a proxy in web dynpro all assume that the web service is what the model is based upon but that's not possbile for our scenario we need to call the proxy from the business objects which are the basis for our model.
According to the help documentation for consuming a deployable proxy in a JSP page:
<a href="http://help.sap.com/saphelp_nw2004s/helpdata/en/2d/b9766df88f4a24967dae38cb672fe1/frameset.htm">http://help.sap.com/saphelp_nw2004s/helpdata/en/2d/b9766df88f4a24967dae38cb672fe1/frameset.htm</a>
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Hi Dheeram,
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application-j2ee-engine SYSTEM "application-j2ee-engine.dtd">
<application-j2ee-engine>
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 reference-type="hard">
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 reference-type="hard">
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 target-type="library">com.sap.aii.proxy.framework</reference-target>
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 reference-type="hard">
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 </reference>
 <reference
 reference-type="hard">
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 <reference-target
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 target-type="library">security.class</reference-target>
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How to change the Portal Password using a link from Web dynpro application

Hello Everybody,
I have a requirement to change the user password from a web dynpro application which is available on a mobile device. Firstly User will log into the portal through a mobile device and after getting authenticated user will be redirected to the mobile application. Within this mobile application there will be a link to change the login password(Portal login). Can somebody tell me how can i change the portal login password from a link available within the mobile application. Looking forward for a suitable reply.
Thanks to all,
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Hi Maksim,
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Hi all,
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[Integrating WebDynpro ABAP applications with UWL for workflow in Portal|http://wiki.sdn.sap.com/wiki/display/WDABAP/IntegratingWebDynproABAPapplicationswithUWLforworkflowin+Portal]
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hi
I have some portal service and how to use that in the web dynpro application.
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thanks
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Hi,
>> I have some portal service and how to use that in the web dynpro application.
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>> and also what is the main diff between Portal Component and web dynpro application
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>> do we required portal to run web dynpro application.
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from
Kwok Wei

Hi
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עיחיחןלכלןעל

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Even though those are tow different tabs, but both are under one view controller.
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Find keyword used in Web Dynpro Application?

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