Import Java Bean model in Web dynpro DC

Hi all,
I have created the following DC's on a track:
1. EMPDic (Type: Dictionary) - DC that contains the database table.
2. EMPEjb (Type J2EE) - DC that contains the EJBs that have business logic. Created a public part EMPpp that containd the bean classes.
3. EMPEar (Type J2EE) - DC that contains the EMPEjb module.In Used Dcs added EMPpp
4. EMPCmd (Type: Java) - DC that acts as the command bean.
Created 2 public parts 'compile'(Type:compilation) and 'deploy' (Type:assembly). In Used DCs added EMPpp.
5. EMPWd (Type: Webdynpro) - DC that will contain the Java Bean Model and the application. In Used DCs added 'compile' and 'deploy'.
Q1.) Now when i try to import the Java bean model by selecting the radio button "public parts of used DCs" and look at the dropdown, i am not able to see any of the jar's related to my command bean DC.
If i select the radio button "project(source folder)" and click Next it says 'No JavaBeans for import'. Am i missing something?
Q2) Could someone tell me the exact steps from pt. 4 onwards. ie. whether it is necessary to create the 2 public parts for EMPCmd DC and what should it contain.
Thanking you in advance.

Hi Melwyn,
check the NWDI tutorial, it will help you:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/c0b53558-6df6-2910-cfbf-a63316bb0fad
kind regards
Stefanie

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Importing Java Bean Model in Webdynpro Development Component

Hi All,
Is there any simple tutorial, example to import java bean model in webdynpro development component.
I am using NWDS 7.0 SP14 and WAS 7.0.
it really helps if you can provide simple EJB as a development component with details how to create a public part and using this bean as java bean model in Webdynpro development component.
what are the steps to be followed with precautions
Thanks in Advance,
Murali

Hi,
[Using the Java Bean Model in Web Dynpro|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/4072c0d0-c21e-2b10-ab84-e2c183d355de]
[Using EJBs in Web Dynpro|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1f5f3366-0401-0010-d6b0-e85a49e93a5c]
you will get more if you search in the forum.
more help on EJB's
Re: Help needed in EJB
http://help.sap.com/saphelp_nw70/helpdata/EN/19/f9bc3d8af79633e10000000a11405a/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/70929198-0d36-2b10-04b8-84d90fa3df9c
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/1f5f3366-0401-0010-d6b0-e85a49e93a5c
PradeeP

Importing java Bean Model

hai ,
am new to webdynpro for java ... Am trying to import ejb bean jar to web dynpro ..
Steps as follows
i) copy the bean jar to wd project lib folder
ii) Set classpath
SampleWD - > Model
Model -> create model
Model name : Samplemodel
Model package : com.sample
Local jar file : C:\sap\workspace\SampleWD\lib\addbean.jar -- getting error in this step as Invalid Class - java bean not available for import
can anybody help me ..
Thanks in advance...
regards,
Krish

Hi Krish,
In addition to Madhu's suggestion,
As per the Java Bean Model creation steps, you will need to add the Commanad Bean JAR too in your Project, and while creation of Model, you need to select this Command Bean JAR and not the Bean Project JAR.
Regards,
Alka.

Importing Java Bean Model (Command Bean) with Session Bean

Hello all,
I'm trying to import a CommandBean as a Java Bean Model in WebDynpro but I'm prompted with an error indicating that I cannot import the EJB (Session Bean) DC that is being accessed by my CommandBean - hence failing to import the CommandBean DC as well.
How do I import this?
Help please.
-Regards,
Jan

HI,
just add ejb20.jar as an external jar in your WD project.

Simple Java Bean Model in Wed Dynpro

Hello All,
I have to develop a WD Java application with an Oracle DB as the backend. To application was designed to abstract the backend interaction into a Java bean model. The data connection and retrieval was successful. To move the data to the context following steps were performed:
1. Create a java class with the variables to be used as context in the application. Ex: Name, Subject, Email
2. On interting the ResultSet, set the values to the variables.
But, only the last row of data is retained. We tried to use array but have not been able to move the ste of values to the context.
Request your help in this regard to store the set of values into the context.
Thank you.

Hi,
It looks like you are overwriting the same context element when populating it with the values from the resultset.
Make sure you create every time a new context element and add it to the context root.
while (rs.hasNext()) {
    ContextElement elem = new ContextElement(); // or something simular appropiate to your element
    elem.setName(rs.next().getName());
    contextRootNode.addElement(elem);
Hope this helps a little.
Regards,
Alain

Problem importing java bean model

I had importing a lot of classes from my bussiness model but I have some problem with some classes. Those classes uses others from external jars, like common collection.
I imported common-collection.jar to wd project, but I got the same error. Is posible use external classes in my model? How can I import it? (external jars)

Hi,
You have to create a DC of type extyernal library.
And paste the external library in the libraries.
And craete public of both types SDA & API.
Right click on the pasted jars in the libraries folder.
Right click on the jar>Development Component->Add to public part(Create a one with API radio button selected).
Repeat the same step selecting SDAs radio button.
Now add the public part created by you in the Web dynpro DC ur working .
Thanks & Regards,
Lokesh

Expose EJB through Java Bean model importer in Web Dynpro

Hi,
I am planning to expose EJB like following:
1. Create Stateless session bean as a façade for DAO access.
2. Create DAO to access database. In my case is Oracle DB
3. Create Java Bean to encapsulate session bean
4. Import java bean model to web dynpro
Few of my business method return the object array e.g. Customer[] which contains all properties of customer, and getter, setter.
Has anyone done this before? Is there any sample code?
Best Regards,
Zhang Yan

Hi
I think u can refer to the following link
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/webas/java/simple java bean generator for database.pdf
Thought this link is also Useful
Creating and Deploying Web Services for an EJB
Wishes
Krishna kanth

Approach of Java Bean Model: What is the best way?

Hi Experts,
In our project, we are trying to connect Oracle Database and display the tables and information in it on Web Dynpro View.
For this I'm following 4 step procedure broadly:
1. Java DC: a) Create Class files --> one for connecting Database (JDBC Connectivity) ; other only having Input and Output variables with corresponding getter & setter methods ;and one more class file having all methods. I make Jar file out of this class files and store that within that DC project under _comp folder.
2. Ext Lib DC: a) Copy the created Jar file in Library and make 2 public parts (one PP for compile time and other PP for assembly time).
3. SAP J2EE DC: a) Create DC of type Library and above create PPs is added to this library.
4. Web Dynpro DC: a) Add SAP J2EE DC of Library Type in my Used DCs. b) This will make the JAR file created in Java DC to be available in options of " Jars from Pubilc Part" and use all these class files as Models. And Using them we access the Oracle DB and get access to data.
This proved to long exercise. I want to know if there is any other approach available other than this. I'm aware EJB Models approach, but this will be hit on my performance, so want to avoid this. Yet if any shorter approach is available.
My Idea behind this long approach is from the SDN provided example on Java bean where in Web Dynpro Project uses a local jar file created from Java project which wraps a EJB Module project and Enterprise Application project. So in DC perspective if we have to include jar file we have to make it public part.
<a href="/people/valery.silaev/blog/2005/09/14/a-bit-of-impractical-scripting-for-web-dynpro from Valery : A bit of (impractical) scripting for Web Dynpro</a> was in great help for making jar file exposed as Public part.
I want opinions and suggestion on this regard and best available approaches.
Thanks in advance
Srikant

D.V.,
Here is an option to trun steps 1-4 into 1-2
As far as you are using your Java classes only from WD DC-s, then:
1. Put all your Java source in WD DC, create single public part for compilation. Bonus: you may create JavaBean model right here and add it to public part as well.
2. In other WD DC-s refer public part created above and add run-time reference (via Project -> Properties) to corresponding DC. Now you can use both Java classes and JavaBean model.
Valery Silaev
SaM Solutions
http://www.sam-solutions.net

How can I include Java Bean model into the model outside the component

Hi All,
I am new to SAP portal. I wanted to create a bean for storing the data and to include that into the application model.
Please help me with an example .
Regards,
Saroj

Hi,
Check these blogs.
The specified item was not found.
Importing Complex JavaBean model into WebDynpro by creating relationships for the model classes
JavaBean Model Import: when it really works
Issue in Importing Java Bean Model
Regards,
Harini S
Consider rewarding points for helpful answers. Post this thread in WD forums for more results.

Diffrence b/w Deploy Time & Design time in Java bean model

Hi all,
I have craeted a model using java bean.
create model->import java bean model->Add JAR->browse the jar.
There i have got two Radio Buttons
Design Time
Deploy Time
I have worked with this two i have not observed any difference.
Can anyone give me some idea about this.If possible with an example to?
Thanks & Regards,
Lokesh.

HI Lokesh,
The basic difference between design time and deploy time is. design time jars are only used when building your aplication and considered to be present already on server. and at runtime application refer to it..
while if you keep deploy time, then the application itself keeps that jar file with him and at runtime it refers to it.
i.e. application deploy that jar file on server.
When you run an application, application need all its dependencied to be present in webdynpro container of server.
your javabean model needs those jar files at server. so when you chose deploy time. it personly deploy that file on server.
Iif you keep it as design time then. then you will be able to build it.
but if those jar files are not present at the server then your application will not get deployed.
e.g.
let A & B are your two applications and they need xx.jar file of a EJB which is created by you to create a javabean model.
now as this xx.jar file is not present at server.
1. when you create model for A. Keep it as deploy time.
as application A deploy that xx.jar file on server. B can refer it directly
2._when you create model for B keep it as design time._

Using Java Model In Web Dynpro

Hi
I have a Java Bean. I have created a JAR file for this DC. A public Part si created for this DC and the JAr file has been added to it.
In the Web Dynpro DC, i add it in the used DCs. But when i go for Add Used Components, iam not able to see it there. And also when i am creating a model by selecting Import JavaBean Model, and selecting the Public Parts of the USed DCs Option, it gives "No Java Beans available for Import" message.
Can anyone please help in this regard, as to how the java bena model is to be used.
Thanks & regards,
Anupreet

hi,
just check out some of these links, i guess they points to your problem,
Doubt in creating a java Bean Model
/people/anilkumar.vippagunta2/blog/2005/09/02/java-bean-model-importer-in-web-dynpro
Importing a java bean model from another DC
Expose EJB through Java Bean model importer in Web Dynpro
hope it helps
regards

Error while importing EJB model in Web dynpro: Unable to fetch the EJBs.

Hi,
We are getting the below error while importing ejb model to Web dynpro.
Error :
Unable to fetch the EJBs. Check if the selected Enterprise Application contain the EJBs.
I have created the public part-> It has a reference to EJB client and the enterprise application also has reference to the EJB project.The EJB is also added in dependency list.
But still we are getting this error. Could anyone please explain what can i do to solve this issue.
Best Regards,
Karthika

Hi Vishweshwara,
Thanks for your reply.
Please find the steps i followed while importing EJB model in webdynpro.
1. The Entity forwarding permission has been enabled.
2. public part reference has been created and through the reference entity option the ejbDC->Client public part is selected.
I followed all the steps mentioned in the document. But still i am getting that error. In EJB DC we have list of JPA entities and stateless session beans are exposed as a webservice(top-down manner).The enterprise application has a reference to the EJB DC.
I could be able to invoke the ejb service beans from ejb explorer and Webservice navigator.
I am able to insert,delete and modify the records from there.
Please let me know what could i do to resolve this error?
Best Regards,
Karthika
Edited by: SAKarthika on Apr 29, 2011 1:43 PM

Problem Importing Web Service as model in Web Dynpro

Hi experts,
I want to import a new adaptive web service model into web dynpro. As when I open Data Model to create the model, it prompt me login to DTR as the feature required logon to DTR. After I logon to DTR, there is nothing happen.
Any idea what is done wrong ?
help help.
thanks

Hi,
Just found out that there is error and it is as followed:
com.sap.cms.util.exception.client.CMSClientVersionConflictException: Version conflict: to call method "readSystemMessages" the minimum server version is "Release6.40 SP16 Patch level 00" but the used server has only version "Release 6.40 SP15 Patch level 00"
at com.sap.cms.client.organizerAPI.CMSTransportOrganizerAPI.versionCheck(CMSTransportOrganizerAPI.java:1232)
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at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:261)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:357)
at com.sap.ide.login.UserValidator.getData(UserValidator.java:411)
at com.sap.ide.login.UserValidator.getDefaultServerData(UserValidator.java:131)
at com.sap.ide.login.UserValidator.getDefaultServerData(UserValidator.java:116)
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at com.sap.ide.webdynpro.tsmodel.application.actions.CreationAction.access$000(CreationAction.java:24)
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Help Help

About import web service model in web dynpro dc

Hi all,when i import a web service model in web dynpro dc, an error occurs.
java.lang.Exception: com.sap.tc.webdynpro.model.webservice.modeltype.core.implementation.AWSModelImporter$FatalImportException: Model setting definition 'considerNillable' not defined for Adaptive Web Service model type
     at com.sap.tc.webdynpro.model.webservice.modeltype.service.AWSModelImporterService.createModel(AWSModelImporterService.java:67)
     at com.sap.tc.webdynpro.model.webservice.modeltype.ui.wizard.AWSModelCreationWizard.createModel(AWSModelCreationWizard.java:238)
     at com.sap.ide.cmi.core.model.importer.CMIWizard$3.run(CMIWizard.java:246)
     at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
Caused by: com.sap.tc.webdynpro.model.webservice.modeltype.core.implementation.AWSModelImporter$FatalImportException: Model setting definition 'considerNillable' not defined for Adaptive Web Service model type
     at com.sap.tc.webdynpro.model.webservice.modeltype.core.implementation.AWSModelImporter.setModelSetting(AWSModelImporter.java:174)
     at com.sap.tc.webdynpro.model.webservice.modeltype.core.implementation.AWSModelImporter.importModel(AWSModelImporter.java:632)
     at com.sap.tc.webdynpro.model.webservice.modeltype.core.implementation.AWSModelImporter.doImport(AWSModelImporter.java:351)
     at com.sap.tc.webdynpro.model.webservice.modeltype.service.AWSModelImporterService.createModel(AWSModelImporterService.java:65)
     ... 3 more
please tell me

1.Create New Model.
2.Select the type of model as Adaptive web service model and click next.
3.Give Model name and Model Package .Select Available WSDL sources.
   a.If u get wsdl from local system,select Remote Location/File system.
   b.If u get wsdl from Sap location ,u have to configure with esr reposirtry.
4.Select Remote Location/File System and click next.Get WSDL URL from services repositry and click next.
5.Click finish.

Java Bean Model

Is it possible to create a simple Java Bean (not EJBs) that connect to the data base where I can read/write to it?? And I want to hook it up to Web dynpro (import a java bean model).
Please help!
I have checked countless threads and tutorials, and am unable to put the pieces together.

Hi Sana,
I think following links definitely help you to answer your queries
PPt :-
FEATURED EVENTS
Demo link :-
FEATURED EVENTS
Best Regards,
Anuj

Import Java Bean model in Web dynpro DC

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