Web Dynpro Model Usage Error

Hi All
I have created Web Dynpro Model out of my CAF project. I followed this <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/8b7059da-0c01-0010-e09c-9ecabaf58864">tutorial</a> to create Web Dynpro model and use it in other DC. In the other DC, I added all the other required DCs mentioned in the tutorial such as caf/core/dict, caf/ui/ptn/common and tc/col/runtime with each of them havin dependency type as build and deploy.
After I do model mappings in controller and view, deploy and run the application, I m gettin the following exception
"java.lang.NoClassDefFoundError: com/sap/tc/col/client/generic/api/IQuery "
Has anybody ever got this exception ?
any help on this will be appreciated with points
Regards
Dharanish

Hi ,
check the following depedencies in Public part of the component,
caf/core/dict
caf/eu/gp/api/wd(GPWdbDynpro)
Caf/eu/gp/api(external)
caf/runtime/uicoupling/api(compilation)
caf/UI/ptn/common(com.sap.caf.ui.utils)
com.sap.aii.proxy.framework(defalut)
com.sap.exception(default)
com.sap.mw.jco
com.sap.security.api.sda
tc/cmi
tc/ddic/metamodel/content
tc/logging
tc/wd/webdynpro
tc/wdp/metamodel/content
and then add following two in library reference in webdynpro refrence,
if your using the GP interface we have to include the "cafeugp~api"
for caf ->sap.com/cafruntimeuicouplingapilib
Thanks,
Balaji.B

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Error when Creating Web Dynpro Model in CAF-Service

Hi All,
I reaaly need help. AFter updating to SPS 9, it was necessary to redeploy my Entity Service. That contains to "Create a Web Dynpro Model" in the Service Explorer,
to get an interface of the Service in my Web Dynpro Application.
Before I update to SPS 9, the Application works fine.
But now, when I want to "Create a Web Dynpro Model" in the NWDS I get the following Error-Message (its not a useful Error-Message):
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Creation of Web Dynpro model failed. Reason: null 
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Steve

Hi Aliaksei,
the problem in the thread is the same I got.
When I use only 7 letters for the operation name, the creation work. When I use more then 7 letters the creation doesnt work.
But its hard to find a methodname with only 7 letters.
In SPS 8 I didnt have problems with the length of method names. Why is it so?
The workspace log:
!ENTRY com.tssap.util 4 0 Okt 10, 2006 15:12:45.577
!MESSAGE Oct 10, 2006 3:12:45 PM com.sap.ip.mmr.foundation.AssociationsOfObject [Thread[main,5,main]] Error: com.sap.engine.lib.xml.parser.NestedSAXParserException: Fatal Error: com.sap.engine.lib.xml.parser.ParserException: XMLParser: No data allowed here: (hex) 35, 3c, 3f(:main:, row:1, col:3)(:main:, row=1, col=3) -> com.sap.engine.lib.xml.parser.ParserException: XMLParser: No data allowed here: (hex) 35, 3c, 3f(:main:, row:1, col:3)
!ENTRY com.tssap.util 4 0 Okt 10, 2006 15:12:45.592
!MESSAGE Oct 10, 2006 3:12:45 PM com.sap.ip.mmr.foundation.AssociationsOfObject [Thread[main,5,main]] Error: com.sap.engine.lib.xml.parser.NestedSAXParserException: Fatal Error: com.sap.engine.lib.xml.parser.ParserException: XMLParser: No data allowed here: (hex) 35, 3c, 3f(:main:, row:1, col:3)(:main:, row=1, col=3) -> com.sap.engine.lib.xml.parser.ParserException: XMLParser: No data allowed here: (hex) 35, 3c, 3f(:main:, row:1, col:3)
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!MESSAGE Oct 10, 2006 3:12:48 PM com.sap.ide.metamodel.core.service.FileSystemService.comp... [Thread[main,5,main]] Error: absolute path too long (253) for MDO:
!ENTRY com.tssap.util 4 0 Okt 10, 2006 15:12:48.705
!MESSAGE Oct 10, 2006 3:12:48 PM com.sap.ide.metamodel.core.service.FileSystemService.comp... [Thread[main,5,main]] Error: absolute path too long (253) for MDO:
!ENTRY com.tssap.util 4 0 Okt 10, 2006 15:12:48.705
!MESSAGE Oct 10, 2006 3:12:48 PM com.sap.ide.metamodel.webdynpro.implementation.ModelProxy... [Thread[main,5,main]] Error: could not get a valid path for ModelClass "cas.conti.com.sap.cd.database.services.cd_database.changedescriptiontableservice.QChangeDescriptionTableServiceFindByTitle" (path too long?)
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Web Dynpro Model Wizard Exception

Hi there,
I've recently installed the latest Netweaver'04 Sneak Preview and I get the following exception when generating an R3 Adaptive RFC model (using the "create model" Wizard):
org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NoClassDefFoundError: com/sap/tc/logging/LogController)
Here are the rest of the details that the error displays:
Plugin: Web Dynpro Model Editor Services
Pugin ID: com.sap.ide.webdynpro.service.modeleditor
Class: com.sap.ide.webdynpro.modeleditor.wizards.model.creation.ModelDialog
Method: nextPressed
Message: Internal error - see detail information in exception trace.
I'm on Version: 2.0.11 of the NetWeaver Developer Studio.
Anyone else out there with the same problem?
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Gough

Hi,
Do check if the following link helps.
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Web Dynpro Model Editor - Wizard Exception

Hello,
I get the following error when I want to create model in Web Dynpro (Right click on Models > Create model):
Internal error
An internal error has ocurred. See error log for more details.
Plugin name: Web Dynpro Model Editor
Plugin ID:      com.sap.ide.webdynpro.modeleditor
Class:           com.sap.ide.webdynpro.modeleditor.ModelEditorCallback
Method:         createModel
Message:       An error ocurred. See error log for more details.
Exception:     java.lang.NullPointerException: null
Developer Studio version: 7.0.11
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Peter Censcak

Hi Peter,
We have already faced this problem in our company with Windows Vista machines. So, if you have Windows Vista, try to run NWDS under Administrator account and in Windows XP compatibility mode...
If not, probably you should re-install your NWDS.
Best Regards,
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Generate Web Dynpro Model?

Hi,
I'm familiar with DS 7.0, and I'm begining to lear 7.1 recently.
I searched for tutorials and in the forum, but I can't find how to create a Web Dynpro model from a CAF DC, in 7.0 it was just a right click and generate WD Model, can you help me please?
thanks a lot!

Hi Maldonado,
Check this link first:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f0ee5047-c7a0-2a10-70b7-9557e3e4d440
Reward points if it's helpful.
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Hi experts,
I am trying to add a web dynpro model to a Composite Application DC.
I am using SAP NW CE 7.1.
In CE 7.0, this was done by simple right click on the CA DC.
but i am not able to do it in CE 7.1.
Can somebody tell me how do i add a web dynpro model to a composite application DC???
basically i need to add a UI corresponding to a composite application?????
Cheers
Gaurav Raghav

Hi Srinivasan Subbiah,
The option you just mentioned is disabled.
how can i enable it???
Also let me explain what i need.
I have a 3 step process where in a user fills a form and sends it to his manager, who appoves/reject it based on some criterias. then the approval/rejection alert is send back to the user.
Now i need to develop the UI as well as Business Logic for this process.
How do i go about it?????
I can develop the UI in a Web Dynpro DC and the Business Logic in a Composite Application DC. How do i associte one with the other????
In CE 7.0, this was achieved by addind a Web Dynpro Model in the Composite Application Project. How do i acheive the same in CE 7.1 ?????
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Web Dynpro model binding

can anybody help me here.
I want to take some data from the backend system and want to display it into a table.

hi,
follow this procedure
1.      Choose the context menu entry Create Model on the Models node.
2.      Choose Import RFC Model.
3.      Make the required specifications in the second wizard window to define where the generated   RFC proxies are to be stored.
4.      In the next wizard window, log on to the SAP System that contains the BAPIs with the business logic.
5.      Select the BAPIs for which you want to create Java proxies.
6.      Choose Finish to start the proxy generation process:
7.      In the Web Dynpro Explorer, choose Create Component Interface Definition in the context menu for the node Web Dynpro Component Interfaces.
8.      Enter a name and a package and choose Finish.
9.      The following structure is created in the Web Dynpro Explorer:
10.      Place the cursor on the subnode Used Models and choose Add in the context menu.
11.      Select the Web Dynpro model in the dialog box.
12.      Choose OK.
Regards,
Sunaina Reddy T

Web Dynpro Model Generation for Application Services

Hi Experts,
I'm currently experimenting with the new functionality provided by CE, but there is one thing that I can't seem to figure out. How does the new Web Dynpro model generation work with regards to CAF Application Services? I'm trying to call an application service from a web dynpro application, but it seems as if models are completely different from Netweaver 7.0. What type of model do I need to create? Do I have to expose the application services as web services?
I've tried creating an EJB model and then binding the model to the context, but I kept receiving null pointer exceptions when doing this and I'm not sure if this is the correct way to do this. Can anybody point me to some good documentation on Web Dynpro/CAF interaction in CE?
Thank you,
JP

Hi JP,
You are right, the CAF models are completely different in NW CE 7.1 compared to NW 7.0.
CAF Application Services in CE 7.1 are in fact EJBs. So the EJB model importer is the way to go. You can find <a href="http://help.sap.com/saphelp_nwce10/helpdata/en/45/dd45e4bc295595e10000000a1553f7/frameset.htm">documentation</a> and some <a href="http://help.sap.com/saphelp_nwce10/helpdata/en/45/f7f744aea471fae10000000a1553f6/frameset.htm">tutorials</a> on help.sap.com. If you still have troubles after you go thru these, please post your concrete issues and I'm sure we'll be able to figure out what's been going wrong.
HTH!
-- Vladimir

Quick Question: ABAP web-dynpro model relies on JCO?

Hi gurus,
As mention in subject. Does ABAP web-dynpro model relies on JCO?
Did a quick search without solid answers...

JCO, is Java Connectors to connect SAP from Java world
You don't need any JCO when you are in the same ABAP Stack
There is no model Nodes/Attributes in Web Dynpro ABAP as in Java, because you are in the same ABAP Stack
Abhi
Edited by: Abhimanyu Lagishetti on Jul 10, 2008 11:35 AM

Web dynpro component usage

Hi,
Can anybody provide me some useful links or some tutorials regarding web dynpro component usage.
Thanks in advance.

Hi,
Creating webdynpro component
http://help.sap.com/saphelp_nw04/helpdata/en/20/1d353ed106ec2ce10000000a114084/frameset.htm
Web dynpro tutorials
http://help.sap.com/saphelp_nw04/helpdata/en/e9/1fc0bdb1cdd34f9a11d5321eba5ebc/frameset.htm
Try this link
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Simplest Example in Java Webdynpo
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/a-c/creating%20your%20first%20web%20dynpro%20application.pdf
Simplest Example in ABAP Webdynpro
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/cb243c45-0801-0010-eb9c-88669007f130
Web Dynpro Sample Applications and Tutorials
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/webcontent/uuid/28113de9-0601-0010-71a3-c87806865f26?rid=/library/uuid/49f2ea90-0201-0010-ce8e-de18b94aee2d
Search in Webdynpro forum.
do reward if it helps
Thanks,
Reddy.

Inheritance in Web Dynpro Model

Hello
This is the current situation:
I have 3 JPA entity classes much like these (including constructors, getters, setters, ...).
@Entity
public abstract class OuComponent {
@ManyToOne
private Ou ou;
@Entity
public class Ou extends OuComponent {
@OneToMany
private Collection<OuComponent> ouComponentCollection;
@Entity
public class Person extends Component {}
In the database, OuComponent has a discriminator column.
This structure appears to work in a normal web module and an EJB Module.
In Web Dynpro, using a model, I can create a new Person and attach an existing Ou to it (through the inherited property ou from OuComponent).
However, when I try to display the information, I recieve the following error:
java.lang.IllegalArgumentException: Cannot perform write operation 'setRelatedModelObjects' on target role: Class 'Person' is not compatible to class 'OuComponent' of target role 'ouComponentCollection' in model class 'Ou'
It appears that Web Dynpro does not realise that Person is actually a subclass from OuComponent. I think it simply checks the discriminatorcolumn for the word 'OuComponent' and throws this exception because it finds a related entity of the type Person instead of OuComponent (even though, as stated, Person IS-A OuComponent. Web Dynpro just seems to ignore it).
How could I bypass this?
Thanks for your feedback

Hi Vincent.
Have you resolve this problem? If yes, could you post the solution?
Regards
Marcos Brandã

Creating web dynpro model from XMII web service

Hi All,
need some help, after creating model in Web Dynpro from XMII WSDL file everything is fine but when i execute the service. I'm getting the following error:
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Hi Sam,
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Hi,
I am using NWDS 7 to create a Web dynpro application. When i imported the web service model, i get compile error on the proxy classes generated. like javax.xml.rpcc not found etc etc. Should we add some extra jar files to successfully compile it?
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regards,
Shabeer

Hope this will help in case of DCs
https://forums.sdn.sap.com/click.jspa?messageID=2452528
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I have NWDS 7.01 SP07 installed and when I am trying to create a webdynpro project, Local DC or otherwise. I get the following exception in the log. I am not able to create a web dynpro project. This problem has been replicated on other systems in windows environment.
java.lang.NoClassDefFoundError: com/sap/ide/metamodel/webdynpro/WebDynproObject
Any help regarding this release? We have to use SP07.

This error is with NWDS standalone. No NWDI or server involved at the time of the error.
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Web Dynpro-layout preview-Error-IE cannot display-service in SICF activated

Hello,
By starting a view in web dynpro framework, i have the error in tab layout "page cannot be displayed" from IE.
Before i make the change in the DNS and system32/../etc, the layout was displayed, but the web dynpro application cannot be started.
Now after those configurations and activation of services in SICF, i can start the web application only with firefox and not internet exploer, and, that internet explorer is preconfigured for the layout preview, i recieve all times the eror "cannot display" when i start a view in the layout tab.
1. How can i change settings so that view can be displayed in layout after i actived the (hope the suitables i.e. view designer) services in SICF - Default_host...
2. Is it possible to change IE to firefox as main browser for layout tab.
Note: For virtual domain i
1. add dns "domain.com" in the DNS
2. add in system32/etc/host file to "127.0.0.1 localhost", "10.10.0.10 sysserv.domain.com"
3. and trough tr. rz10 in the instance profil input the icm/.... ....domain.com
Through this three steps i could get the web dynpro application started,
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arnaud
Edited by: Arnaud on Jul 15, 2010 4:36 PM
Edited by: Arnaud on Jul 15, 2010 8:31 PM

Hi,
The string is not correctly formed ( a quote and a concatenation ) :
Your url :
v_url:=nvl(v_rep_port,'http://'||v_rep_HOST ||':'||v_rep_port||')||'/reports/rwservlet/getjobid'||substr(v_rep,instr(v_rep,'_',-1)+1)||'?'||'server='||v_rep_svr;
The Correction :
v_url:=nvl(v_rep_port,'http://'||v_rep_HOST ||':'||v_rep_port)||'/reports/rwservlet/getjobid'||substr(v_rep,instr(v_rep,'_',-1)+1)||'?'||'server='||v_rep_svr;
Hope it helps
Mohamed Dadi

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