Advantages and dis advantages of web dynpro java

Hi Guys,
May i know what are the advantages and dis advantages of web dynpro java?
Regards,
Madhu

Hi Madhu,
Web Dynpro (WD) is a proprietary web application user interface technology developed by SAP AG and exists in a Java (Web Dynpro for Java, WDJ or WD4J) and an ABAP (Web Dynpro ABAP[1] , WDA) flavor. Both have in general the same functionality, but usually one flavor is improved after the other, so temporary one flavor is more advanced than the other. Hence, the decision for one of the two flavors shall be based on organizational and business circumstances, but not on functionality.
WD follows an adapted MVC pattern and a model driven development approach ("minimize coding, maximize design") with a large number of dedicated hooks in generated code to place custom coding. It is intended for business applications that shall follow standardized UI principles, connect to backend systems and be scalable.
Main advantages of Web Dynpro over other technologies
typed access for design time checks, e.g. navigation links and messages are accessed via types instead of string keys like in JSF
diverse services for backend access, like aRFC, JEE and Web Service data models
integration with SAP Interactive Forms by Adobe, which are interactive PDF forms, during design (same IDE) and run time (data sharing)
integration with business process management and business rules management (since NetWeaver CE 7.1 EHP 1)
designed to support development big scale applications by adding multiple grouping layers on top of Java packages (DCs, SCs, products)
runs on different clients e.g. web browser, mobile device, widget engine
comes with a big collection of UI elements providing a wealth of functionality and only have to be configured but not programmed
Main disadvantages
proprietary, running only on SAP servers
less flexible due to support for multiple clients (i.e. custom html is not possible). To reduce the limitations, several measures have been taken. For example, WD supports so-called "islands" for e.g. flash applications that enrich the Web Dynpro UI element collection by rich UI elements. This disadvantage doesn't seem so serious but in fact basic features that user expect to receive cannot be implemented (e.g. coloured rows in table, colours in general, advanced aligning of simple UI elements (due to nonexistence of more complicated ones), selecting multiple rows in tree-like tables (this is due to preserving basic concept of WD) and many more). Having the flash feature means that developer completely avoids WD UI (And thus cannot use other features).
rendering speed in browser for larger tables (>1000 rows)
The designtime and runtime environment is part of SAP NetWeaver 7.0[2] (also known as Netweaver 2004s) and following releases.
The name comes after the original Dynpro library, whose name meant "Dynamic Program".
Regards,
Pradeep Kumar

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IView Personalization (Web Dynpro Java) for Anonymous User

Hello All,
Is it possible for anonymous user to see iView personalization (Web Dynpro Java) when personalized by an administrator? What I did was create new role and iView making available to anonymous user. This work fine meaning I can view iView using URL http://<servername>:<port>/irj/portal/anonymous . But the personalization I made to iView using administrator mode launching iView in preview mode and then using personalization dialog by choosing Ctrl and secondary mouse button to personalize is not showing. Iu2019m currently on EP7 SP15 and using iView type Web Dynpro Java for the development component sap.com/tcsecumewdenduser application name LogonHelpApp.
Any help is very much appreciated.
Many Thanks,
Gary

Hello Michael,
Yes, the Web Dynpro for Java Personalization is working perfect for non-anonymous users. The issue is when I view same iView using anonymous URL http://<servername>:<port>/irj/portal/anonymous the personalization is not showing just defaults back to the original Web Dynpro Java application settings. The iView that I created and personalized is the new Logon Help Dynpro Java application (LogonHelpApp). Is there some permissions that restricts anonymous user to view personalization?
Koti Reddy Iu2019m using the Web Dynpro for Java Administrator Personalization. Here is the documentation [http://help.sap.com/saphelp_nw70/helpdata/en/42/ed3ce7f8593eebe10000000a1553f7/frameset.htm |http://help.sap.com/saphelp_nw70/helpdata/en/42/ed3ce7f8593eebe10000000a1553f7/frameset.htm ]
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Advantages of web dynpro java

Hi,
Can any one tell me what is the difference between web dynpro java and visual composer?
And how web dynpro java is avantages over the visual composer?
Regards,
H.V.Swathi

Hi,
Please go through the links
What is Visual Composer? User Guide
http://help.sap.com/saphelp_nw04/helpdata/en/01/4b7e40417c6d1de10000000a1550b0/frameset.htm
SAP NetWeaver Visual Composer - How to Guides
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/16244247-0a01-0010-3294-d81c21e7e86e
Creating Applications Using SAP NetWeaver Visual Composer
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/2456bf8a-0a01-0010-709a-ffc91ade9f42
How to Model Portal Content Using SAP Visual Composer u2013 No Programming Required!
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/ff65b5a2-0a01-0010-5b97-e747192a1d49
Troubleshooting VC:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/8ee70a47-0a01-0010-d198-f94c2d7d320c
VC e-Learning:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5a35194b-0a01-0010-7598-a4bb10e0c5c9
VC
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Webdynpro Tutorials
http://help.sap.com/saphelp_nw70/helpdata/en/52/4c6c3e58d0d064e10000000a114084/frameset.htm
What is Web Dynpro? What is Web Dynpro?
Why WebDynpro ? Why WebDynpro ?
Benifits of using Webdynpro Benifits of using Webdynpro
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Santosh

Reading and displaying Ms.Word document with web dynpro java

Hi,
I'm using NetWever developer studio 7..0.21.
I'm developing web dynpro java application.I'm in difficulty to read and display word document with its original format in web dynpro view. Is it possible?
If possible , is there a blog etc.?
Thanks.

Hello,
You have to use the Office Integration Library. Please, follow the documentation below:
http://help.sap.com/saphelp_nw04/helpdata/en/c3/32853febec3c17e10000000a114084/frameset.htm
I hope this helps you.
Regards,
Blanca

How to use Web Dynpro Java isChanged and isChangedByClient

Hello,
I have read thorugh a lot of documentation, threads, ... --> but the picture is not geting clearer fro me.
We have Web Dynpro Java Application (on Netweaver 7.0 SP12) running in Enterprise Portal. We need to tell the portal work protect mode, that we have unsaved changes (how to do this is clear).
I am struggling with figuring out, that my Web Dynpro Context has unsaved changes. I found the two change-indicators isChanged() and isChangedByClient(), which already confuses me a little bit.
Anyway, this is what I have figured out so far:
I am calling wdContext.currentContextElement().isChangedByClient() to figure out changes and when a Save operation has been completed sucessfully, I call wdContext.currentContextElement().node().getContext().resetChangedByClient(). This works for some of the changes made by the user.
I then tried calling wdContext.nodeABC().getElementAt(i).isChanged() for all nodes of my Web Dynpro Context, but this results in detecting changes before the user ha done any interaction.
Implementing an own change tracking (i.e. by adding a changed-Attribute to each context node) does not seem a viable option for me.
So these are my questions:
- Does anyone now a working pattern relying on those chnage indicators ?
- Does anyone now how to reset the isChanged indicator (or when it is resetted by the framework) ?
Any help appreciated.
Thank you,
Stefan

Hi
Check this link
Re: How to keep isChangedbyClient flag set between roundtrips?
http://help.sap.com/javadocs/NW04/current/wd/com/sap/tc/webdynpro/progmodel/api/IWDNodeElement.html
Thanks

Difference between web dynpro java and web dynpro abap

Hi this is watson maureen,
I wnat to know what is the difference between web dynpro java and web dynpro abap?
thank
maureen

Hi watson,
Go through these links, you will get the difference between web dynpro java and web dynpro abap
https://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/e0e4940c-035c-2b10-0b9d-eb8f99674f4e
Web Dynpro: ABAP or Java?
Regards
Sreedhar.

Problem in completing the TASK when using Web Dynpro Java and BPM

Hi,
I am using Web Dynpro Java and BPM.
i see my Web Dynpro View when i run the process.
Just that the task is not completing.
when i click on the Web Dynpro button to signal the completion of the event, nothing happens.
i have appropriately created events in both Component controller and Interface Controller and used the same in creating the Task.
a method in Component controller fires the event and a button click in the view calls this method.
i have successfully completed Donka Dimitrova's "SAP Netweaver Business Process Management-End-to-End Process Implementation Sample " but when i tried my own with slight modifications, it is not working !!!
http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/d07f3e88-554f-2b10-3cbf-ab8afea51b9f
regards,
-Amol Gupta

Hi Amol,
The way you described the things, I dont see any problems. Just to make sure that you are triggering the right event that you mapped as completion event for the task, try to cross check once again and see if the correct event is getting triggered. Also try to put some messages for debugging to see till where the control goes.
Regards,
Arafat

Web Dynpro Java Internationalization and backend ABAP function modules

Friends,
I have a requirement where I want my Web Dynpro Java application to support BRAZIL and CHINESE.
I have been through the sample programs and tutorials and I understand how to support my application in these 2 languages. The challenge I am facing is how to communicate the language to the backend code (ABAP function modules) so that the function modules can written language specific error messages and texts.
I searched SDN but could not find anything. Your help is appreciated.

Prashant,
When you are configuring JCo connection in WebDynpro Content Administrator, just left language settings blank for metadata connection (you may do the same for data connection). Now WD will supply language of currently logged-in user when obtaining connection settings from system landscape and you'll get necessary functionality.
By default locale of user determined by parameter sap-locale (sap-locale=de_DE for example), settings of user's browser and lastly preferences of user stored in UME.
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http://www.sam-solutions.net

Portal Eventing between Web DynPro Java iView and non-Web DynPro iView

Dear Experts,
I have 1 Web DynPro Java iView and 1 non-Web DynPro (using JSPDynPage and JSP) iView, both attached to a page. When Web DynPro Java iView fire a portal raise event, the portal iView did not execute the javascript function tied to the event subscribed.
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String param = "test";
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function notifyTest(param)
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Note:
1. When Web DynPro Java iView fire the portal event the entire page is refreshed, including the non-WDP iView.
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Can anyone help to solve this problem?

hi
Please write the below code snippet in ur jsp for notifyTestjavascriptfunction
function notifyTest( eventObj ) {
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About Adobe Form and Web dynpro Java development

Hello experts,
We had a requirement to display different Adboe Forms dynmaticlly in Web dynpro Java application.
There is only one Web dynpro Java application, but 10 Adobe Forms . If user "a" access the application ,display form 1 ; if user "b" access the application , display form 2 ; if user "c" access the application , display form 3.... just like this.
There are about 30 fields in BAPI which Web dynpro Java application called . Form 1 mapping to field 1 to field 3, Form 2 mapping to field 4 to field 6, Form 3 mapping to field 7 to field 9 ....
Is it possible ? If it is possible , could you please give me a solution ?
Thank you in advance !
Best Regards,
Louis

Siva,
I referred to the website, but still having issues with generating tables in Adobe Form. I can get all the table rows in the adove form, but the pdf doee not add new pages to display all the table rows. It just createa one page with the table inside it, display few of the rows and truncates rest of the table data.
Here is the heirarchy of the page with the properties set
Master Pages ---
        ||--> Page 1
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Can't make it wor, not sure what's wrong here
I am using NDS 7.0 SP18 and Adobe LiveCycle 8.0. Does that could be a problem.
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Web Dynpro Java and Adobe Interactive forms Which Tool Should I Use?

Hello Experts,
Can anyone help me with deciding the right technology to use among WDJ and Interactive form by adobe. I want to prepare a presentation to showcase the strong and weak points in order to decide the final technology.
Thanks in advance for the help.

I personally prefer Web Dynpro Java without Interactive forms in most cases.
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Best regards, Aldo.

Difference between Web Dynpro Abap and Web Dynpro Java

Hi,
What is the difference between Web Dynpro Abap and Web Dynpro Java.
Thanks,
Suresh

hi suresh......
from the end point of view, the customer wont know whether the application is done by java or abap. only the programming language differs and nothing much more.
---regards,
alex b justin

Weblog for Simple way to debug ESS and MSS Web Dynpro Java applications

Here is the link to the new Weblog topic "Simple way to debug ESS and MSS Web Dynpro Java applications"
/people/yugandhar.reddy/blog/2011/03/26/simple-way-to-debug-ess-and-mss-web-dynpro-java-based-applications--very-useful-technique

Thanks Siddharth. I was trying as you suggested, I was trying to add the link to the FAQ's but looks like the wiki is locked or I dont have permission to create a page in it. Is there any other way to do it?
Edited by: Yugandhar Reddy on Mar 28, 2011 5:04 PM

Web Dynpro JAVA VS. Web Dynpro ABAP

Hi,
I'm interested in advantages and disadvantages of WD JAVA & WD ABAP. Could anybody give me some "detailed" information about it?
We need any information you can give us.
regards,
Sharam

Hi,
Web Dynpro for ABAP:
Web Dynpro for ABAP or 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).
The use of declarative and graphical tools significantly reduces the implementation effort
1) Web Dynpro supports a structured design process
2) Strict separation between layout and business data
3) Reuse and better maintainability by using components
4) Automatic operation of the Web Dynpro application using the keyboard
5) User interface accessibility is supported
6) Full integration in the reliable ABAP development environment
for more see:
http://help.sap.com/saphelp_nw2004s/helpdata/en/77/3545415ea6f523e10000000a155106/frameset.htm
Web Dynpro for Java:
Web Dynpro is a client-independent programming model of the SAP NetWeaver technology platform for developing user interfaces for professional business applications. It is based on the model view controller paradim which ensures that the business logic is separated from the presentation logic. This architecture is visible in the Web Dynpro perspective of the SAP NetWeaver Developer Studio (NWDS).
Web Dynpro helps you with the development of Web applications by:
1) Ensuring platform-independence with the meta model approach
2) Minimizing the implementation effort through declarative programming
3) Supporting a structured design process by applying the model view controller paradigm
4) Providing reuse and better maintainability by using components
5) Providing graphical support with tools in the Web Dynpro perspective
6) Providing the SAP NetWeaver Java Development Infrastructure (NWDI) which supports team work with different services such as source code versioning and the Central Build Service.
for more see:
http://help.sap.com/saphelp_nw2004s/helpdata/en/15/0d4f21c17c8044af4868130e9fea07/content.htm
The concept of Web Dynpro ABAP is identical with Web Dynpro Java and offers more or less the same functions
hope it helps
regards

Logical Destinations in Web Dynpro Java

Hi!
Is it possible to access logical HTTP destinations maintained in SAP NetWeaver Administrator via Configuration Management -> Security ->Destinations in Web Dynpro Java source-code.
I would like to use such a destination to configure an URL target for a IWDFrame UI element.
Thank you very much in advance!
Regards,
Thomas

I found out that there is a [Destination Service API|http://help.sap.com/saphelp_nwce711/helpdata/en/8b/8e7dac1e661d44bf2a676fd3948cc6/content.htm] for this purpose. Unfortunatly I am still not able to provide the required components security.class and tc/sec/destinations/interface to the web dynpro component. Maintaining them via Project Properties -> Web Dynpro is not allowed any more, and I couldn't find them in the DC perspective to add them as DC dependency.
Has anybody got an idea where these two libraries have gone?
Regards,
Thomas
PS: The 7.0 procedure, which can be found in various posts, doesn't seem to work any more for CE 711.

Advantages and dis advantages of web dynpro java

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