JAVA, JAVA WEB dynpro and possibility of JAVA workflow

Hi all
Just a take here -- I'm just getting some feelers on the way WF SHOULD be going in future.
Since starting to use the JAVA WD system and netweaver developer studio it seems that having to encapsulate a lot of NEW Workflows as ABAP objects is going "Backwards". (Note I said NEW not EXISTING applications)
I understand that some compatability with existing systems needs to be maintained but if your user is doing all his applications from a Portal you really need the WF's to be triggered from the portal via say WEB SERVICES.
I find I'm actually using the older ERP / ECC 6.0 R/3 systems these days purely as DATA repositories and from a JAVA program can often retrieve the data via standard BAPI's and RFC calls in a JAVA or Portal application.
Isn't it about time that the workflow system as a whole was made much more JAVA and PORTAL friendly --since this is where more and more people are doing their developments from.
Since switching more or less full time over to JAVA WEB DYNPRO developments the whole development time is completed MUCH QUICKER and with many many less mistakes.
ABAP Web dynpro is also OK but it's still a little bit of a nightmare compared with JAVA when you need a lot of WEB SERVICES.
Some WF's obviously will need to remain ABAP based but newer custom WF's IMO should be WEB DYNPRO and WEB SERVICE based.
I can't think of too many large organisations who aren't making more and more use of Portals these days -- so C'mon SAP -- provide some proper Web hooks into WF's instead of us having to go through hoops and rings of writing LAST CENTURY's code to get stuff to work through a Portal.
Cheers
jimbo

Hi,
Have you checked the new BPM tool that SAP is offering? I think that it is definately a big step into to the drection that you are describing. I haven't really checked all its features and the technology that is is based on, so I am not the biggest expert of this matter.
Check for example this article to get an overview: http://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/b06c49b2-ac63-2c10-3d8d-d17b817ba4ca?quicklink=nw-bpm&overridelayout=true
Of course it will be a long road before this new tool will (if it will ever) replace the old ABAP based workflow engine.
I wouldn't totally agree with all the points that you presented (ABAP WD being a nighmare, etc.). Actually I think that the direction (at least in some parts) is the opposite. For example SAP seem to have replaced their "old" travel management applications (Java WD) with new ABAP WD applications, so I see that they believe more in ABAP than Java (of course there might be some financial & other reasons behind this also.). In my opinion WDA has so many advantages compared to WDJ, that I would consider carefully the options when choosing the technology (the possible better(?) compatibilitly with web services might be one of the reasons).
Regards,
Karri

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Hi,
I am really not sure if this is recommended..
Try some negative testing on the application. If the application crashes, the trace of the error occured will tell you what kind of development has been adopted for the Web Dynpro application.
Another hint can be the port number in the Application URL. If it is not 50xxx, and is somewht like 8xxx, it is surely Web Dynpro for ABAP.
Regards,
Alka.

Using External java within web dynpro DC

Hi
I'm new in web dynpro and I'm facing a problem.
I'm doing a web dynpro DC application and I want to use some external java classes I have created into my DC. But I don't really know how to do it, I tried EJB but I don't exactly how it works.
by the way, I was using a stand along web dynpro before and this worked fine, I just needed to create a package within my web dynpro project with all my class architecture to have them directly. but now with the DC stuff, it's not the same at all. so please help
thanks

Hi
Better you create a Java Development component and add all your java classes to that DC and build it.
Create a webdynpro DC to develop front end and add the java DC in used DC's of your Webdynpro DC.
This is the way you can use the java classes effectively with out redundancy.
If you create a package inside a normal webdynpro project, then you can not reuse them later in other webdynpro proj
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Regards
Kalyan

Want the link to open EAS IN WEb mode and also the Java API details needed

Want the link to open EAS IN WEb mode and also the Java API details needed to get it up and running.
Kindly provide the answer if knows.
Thanks .

Yes, you can have single sign on enabled on multiple essbase servers,
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here is an example of a css.xml
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<spi>
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<identityAttribute>dn</identityAttribute>
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Java 7 Web start fails to download Java 1.6 version

Sorry for the almost exact duplication of a previous thread, but that was closed (Java 7 Web start fails to download Java 1.6 version
When launching an application requiring Java 1.6 with a Java 1.7 web start it fails when it tries to download 1.6 with the following message:
"Unable to download http://javadl-esd.sun.com/update/1.6.0/1.6.0_29-b11.xml for installation"
Problem only seems to occur on Windows 7 (64 bit), seems fine on Windows XP.
Bug has been raised with Oracle by poster Matt Taylor - http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7168311
Does anybody have any ideas?
Thanks,
Lee.

igor wrote:
Could you please collect and provide more info.
In particular:
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"install the jnlp from the dos window" - do you mean run "javaws applicationURL"?Yes. But actually that only worked because we had already installed a Java 6 version.
When it does not work do you use Deployment Toolkit to embed link into web page?
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http://dl.waterford.org/pics/error_install.png
http://dl.waterford.org/pics/error2.png
http://dl.waterford.org/pics/error3.png
Here is a link to the error in the java webstart failure dialog (details):
http://dl.waterford.org/pics/errormsg.txt
2) Enable full trace details (see http://docs.oracle.com/javase/7/docs/webnotes/tsg/TSG-Desktop/html/plugin.html#gcexdf)
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3) Install WireShark and see what http requests are made. Please post all request/response pairshttp://dl.waterford.org/pics/packets.pcap
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Web dynpro and database

I need to get to the sap db from my web dynpro, and I need to be able to save/retrieve/modify data.
Any idea how to approach it??
I've looked into creating ejbs but have been unsuccessful at finding an ejb document on how to create them and then use them in web dynpro.
If not, what other ways are to go about saving/retrieving data??
Thanks

Hey!
Try this out, it should work.. I would sugest that you use this code snipet on DAO's and put them in a java library project, and make reference to it from the web dynpro project properties so you don't have business logic on your WD Application, although it will also work in the WebDynpro if you copy/paste and customize this code
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
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import javax.naming.NamingException;
import javax.sql.DataSource;
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Cheers,
JV
Edited by: Jesus Valencia on Aug 6, 2009 11:00 AM

Web Dynpro and Abobe Flex

Hi Folks,
I've seen a couple of responses to questions about the mixing of Web Dynpro and Adobe Flex technologies...
This thread mentions a "Flex Client" which is reportedly able to render existing Web Dynpro apps in Flex: WebDynPro ABAP in adobe flex client
This thread mentions a technology called "Web Dynpro Islands" which is apparently Flex components within Web Dynpro apps: Flex with WebDynPro
These concepts seem very different to me - the first being a run-time solution to Flex rendering and the second, design-time. In my opinion, the Flex Client sounds like a more flexible (excuse the pun) solution as it allows the designer to concentrate on application functionality and leaves the visual styling to the GUI. Following on from this thought, the Flex Client gives an added benefit in that, if the person executing the app wants to view it in the current WD style as opposed to Flex, they have this option by choosing a different rendering tool/user interface... and the underlying WD app remains untouched!
Does anyone have any thoughts on this?
On a potentially negative side of the Flex Client technology, is the this client yet another GUI tool that needs to be rolled-out and maintained on users' PCs or will it simply be a plugin that can be downloaded on-the-fly and used in a web browser (in a similar way to an ActiveX control)?
I hope this stimulates some interesting discussions...
Cheers
Glen

Thanks Thomas! I was hoping you'd be around to shed some light on this...
You're explanation of the use of Web Dynpro Islands was very useful - I was assuming that any UI elements created for Flex designer could also be created as a Web Dynpro component for the Web Dynpro designer (ABAP or Java) but you make a good point that they have different capabilities.
I think, my biggest concern was that the visual style of the WD Island/Flex component would be so different to the the rest of the WD app that it would stick out like a sore thumb but if you use the Flex Client to render it, as you suggested, then every UI element in the app should look and behave consistently... another assumption...
This makes me wonder whether we'll need to use the Flex Client for all our portal apps to keep the look-and-feel consistent throughout the portal. There's nothing worse to a user than having one UI element behave a certain way in one app and a totally different way in another - eg. compare the scrolling functionality of the WD table element to the Flex table element.
I'll look forward to hearing more about the Flex Client in the near future.
Cheer
Glen

How to integrate a Smart Form in Web Dynpro and how to view it on portal?

Hi,
I have created a Smart Form in ABAP. I need to use it in Web Dynpro. How can this be done?
I want to integrate this Smart Form in a Web Dynpro Application and then display this Smart Form on the Portal (when I deploy the Web Dynpro application).
Is it compulsory to first convert the Smart Form into PDF Format? Is there some other way ??
Thanks in Advance.
Regards,
Harshada

Hi,
Go through Re: Web Dynpro and Smart Forms.
Regards,
Satyajit.

Abap web dynpro and portal events

First off, a little introduction: My name is Martin Kroppen, I am an Abap developer for SAP Netherlands, and I am currently involved in a project for hospitals to built a portal. For this, I have created 2 Abap web-dynpros, and then impemented the views as iviews in an EP. What I want to achieve is that the input view triggers the display view on a second page, and the data is shown for the values in the input view (all in the same browser window).
I am using the portal integration manager for this, with the method for relative navigation.
The navigation is working fine, only problem is that I don't know how to handle the business parameters that I send over.
My questions are:
1. is this the correct way for navigating between abap webdynpro iviews in the portal?
2. what is the correct way to read the business parameters into my context of the second Abap WD application?
I tried the solution that is described below, I could not get it to work correctly.
If you define BUSINESS_PARAMETERS as application parameters in your Web
Dynpro application and the parameter names start with ″APP″, they will
automatically be forwarded to the startup plugs of the Web Dynpro application
provided they are marked as startup parameters. In this case, keep in mind that
the iView/page used as the navigation target must be assigned to the user role.
If it is not, navigation cannot be triggered.
Hope someone can help me
Regards
Martin Kroppen

Hi,
please refer to this link for portal integration
Web Dynpro for ABAP Portal Integration [original link is broken]

Web Dynpro and CAF (BOs, Application Services, returning Complex Types)

Hi All,
I am trying to develop an application using Web Dynpro and CAF for days now and did not get it running.. I need some help here.
What I am trying to do / have done is the following:
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- call this method using AWS model or EJB model in Web Dnypro, show the result in a table.
My getAllBOs returns a set of BOs (Data Type is the Complex Type of my BO in CAF). I was able to design the Application Service so that it returns a collection of BOs (using a Wrapper Comple Type), but I was never able to call the generated Web Service successfully in Web Dynpro. The WebService worked fine when testing it in wsnavigator...
However, i never got it running.. is there anybody out there who is able to explain what to do to import a AWS model or an EJB model in Werb Dynpro and particularily how to implement the stuff so that it returns a set of BOs successfully...
Thanks in advance.. Useful help is highly appreciated
Please note: THIS IS ABOUT Netweaver CE 7.1 - do not post stuff about 7.0!

Hi,
You have to return a single object from caf layer to webdynpro layer.
Since you are returning a list of BOs, create a wrapper in caf which contains the list of your BOs.
Your application service should return this wrapper.
Creating Wrapper:
1. Create a complex data type.
2. Include your BO as one of the properties in it. and set the cardinality to 0..n.
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Return this wrapper.
Hope it helps.
Regards,
Fazal

Integrating Web Dynpro and Portal

Hi people!
I'm starting the development of a simple web site in SAP Enterprise Portal. I created a simple web dynpro application to test the integration between web dynpro and SAP EP. I created a new folder and a new system in portal content. After I add a new page and a new iView (this iView open my webdynpro iview).
My Page open normally in SAP Portal Page Admin, now i would like to know how do for include the Portal Theme, Menu, Status Bar into to my page.
I investigated about wdPortalNavigation and wdPortalNavigationMode, but i don't understand very well how insert the Portal Navigation properties into my Page.
How do I insert this properties in my iView Code? or I should set this properties in Portal Admin?
Somebody have some e-books or tutorials to indicated?
Thanks in advance!!
Marcelo

Hi Marcelo,
First of all welcome to SDN....
For you Webdynpro pages to open with new THEME but not with default theme of portal you have to design new theme in portal and assign that theme to WebDynpro Components
for creation of THEMS please refer these Documents
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/ccb6bcf4-0401-0010-e3bc-ec0ef03e13d1
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/3ea0d790-0201-0010-80b8-b680496a3838
Please Reward Points if Helpfull...
Regards.
Vinit

How to Pass Java Objects between Web Dynpro and Java SAP iViews

Basically I have an SAP web dynpro iView that I do stuff with and I want to pass an object to another iView which is just a regular Java iView. From what I've read and tried, I can't just stick something in the session object and hope that the Java iView can pull it down the other end. I had a dream that it was possible (seriously).
Anyway, are there any possible solutions around? Please advice and share you throughts. I will try to dream about it again tonight and see if its really gonna work this time.
thanks for your help in advance

There is no easy way you can pass objects other than those supported by express such as String, map, list etc.
Though not advised, you can create a class with static variables to handle the storage of such java objects during transition between form and workflow. You will need to somehow identify the objects uniquely .

Java Web DynPro and Universal Worklist Interaction

HI ESS/MSS Gurus,
Good day!
I am a workflow consultant who is working on an ESS/MSS project. I have already completed and tested (successfully) all of the workflows needed in the backend using the PTARQ and PTCOR applications. We are also successful in showing the work items in the universal worklist.
Now the question is, whenever we click on the work item, we encounter an error in the portal. Now, I need to determine the following:
1. How are we going to integrate the ESS/MSS portal with the execution of the work item in the universal worklist?
2. Do we need to develop custom Java web dynpro applications for the approval process of the leaves, or is there a standard offering from the ESS/MSS packages?
Your inputs are very much welcome.
Regards,

Hi Gurus,
Here is what we have done so far:
1. Implemented the details as indicated in note 779075 and changed the parameters defined in SWFVISU
2. Upon re-registering and clearing the cache from the UWL, we tested if the task will call the standard application for leave request approval. It returns the error Internal error. :
Item is null for action acknowledge, and for item type uwl
It seems that the xmls files are not being generated or read successfully. although when we check uwl.webflow.SAP_ECC_HumanResources, there is an updated xml file for the task
Questions are:
1. What checks do we need to execute between the back end, UWL and portal?
2. Whenever changes in SWFVISU are made, what items do we need to check to ensure that the changes are reflected in the UWL? I have read that SWFVISU helps the user do away with the tedious xml creation. How can we verify that the changes are implemented/updated in the xmls generated?
3. Any other items we need to look into?
Regards,

WDVisibility type paramter in Java Bean(Web Dynpro DC in CE 7.1)

Hi All,
I need to set a WDVisibility type paramter in a java bean and i am able to do so.It imports com.sap.tc.webdynpro.progmodel.api.WDVisibility class .
The problem is when i am creating a Java Bean model it is not allowing me to select the Java bean class it gives an error message" Invalid Class : No class files found for JavaBean : com/sap/tc/webdynpro/progmodel/api/WDVisibility".
The java Bean class exists in Web Dynpro DC>src folder.
Any Pointers?
Regards
Avinash

Hi Ondrej ,
Refer the above links to convert the component of the first dc as a public part.
Then declare the methods which are written in the component controller of the first DC in the interface controller with the same signature.( When method is called automatically component controller method is called)
In second dc in component controller properties tab add the reference of the first dc.
Then access the method in second dc as
wdthis.wdget<UsedComponent name>Interface.methodname();
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Ardhendu

Adding an ABAP Web Dynpro application to a Java Web Dynpro screen

Hey fellow SAPers
This is an interesting one .........
We have developed a bespoke ABAP Web Dynpro screen that we want to include into a tabstrip in a Java Web Wynpro application. We have managed to do this by inserting an iFrame into the tabstrip, and then passing the UWL of the ABAP Web Dynpro app. This works. However, life is never that easy and of course whenever the screen is refreshed, the ABAP WD app is called again and so any changes to the data on the ABAP screen are lost as the data in the ABAP app is re-selected and the data returns to it's original state.
Does anyone know:
- of another way to incorporate an ABAP WD screen into a Java WD screen (as a tabstrip)
- how to de-activate a Java view so that the view containing the ABAP WD app is refreshed (i.e. the window is refreshed), the view is not refreshed and the ABAP app is not re-called .....
- any other ideas ....
of course, we could re-develop the same screen in Javam, but that would be too easy
Looking forward to your responses
Jon

>
> Hi Jon,
>
> First of all Iframe is not officially supported until 7.01 version.
I believe it is deprecated in 7.01 and re-supported in 7.02
[7.01 IFrame Help|http://help.sap.com/saphelp_nw70ehp1/helpdata/en/15/c07941601b1d09e10000000a155106/frameset.htm]
[7.02 IFrame help|http://help.sap.com/saphelp_nw70ehp2/helpdata/en/15/c07941601b1d09e10000000a155106/frameset.htm]
>
> Would you not use Portal for that and incorporate two iViews in a Page?
I'm guessing you want to show this within the WDJ app not above, below to the left, right...
This is a very very difficult thing to do - I'm guessing that you are not actively passing data into the URL of the WDJ IFrame, but just have "decorated" the WDJ app with the a statically linked IFrame. In this case the only thing you have to tie the two together is the user id that you are using - and potentially the time the app was launched. You could in theory use a shared memory area (watch out for multi app server environments) to store the state of the app in case it got refreshed... but this is not a simple thing to do...
Consider if it is absolutely necessary to enhance the WDJ in place - hopefully you can just replace it with a WDA when you install EhP5
Good luck,
Chris

JAVA, JAVA WEB dynpro and possibility of JAVA workflow

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