Using EJB Model in Web Dynpro

I have to redeploy my EJB.ear (used as a Web Dynpro model) everytime the J2EE server is started (only the first time), after which My Web Dynpro program continues to work. In other words, the following code in my Command Bean is not successful without redeploying the EJB.ear for some reason. Can someone please tell me what I am doing wrong ?
home = (MyLocalHome) context.lookup("localejbs/MySessBean");

Walter, thanks for the reply.  When I checked the EJB Container in VA after starting up the J2EE server, my EJB shows a blue check mark already with the START button grayed out (STOP button is active).  So I would think the EJB is started already...  HOWEVER, I noticed that when I hit the DEPLOY button there, I see a warning message popping up which says :  "This Application hasn't J2EE modules, so it cannot be loaded. Proceeding with Deploy".  I go ahead and finish the Deploy and then my EJB works.  It seems I am not including a module when I deploy it ?
Paul

Similar Messages

  • 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

  • Oracle or MS SQL Server, EJB Models and Web Dynpro Application

    Hi
    I've a table in MS SQL database. I've created in Visual Admin, the datasource(jdbc/MyAlias) for the above. SQL Server has Employee Table with EmpId, FirstName, LastName and Description as its Columns.
    I want to display, modify , insert and delete entries from the Employee Table using web Dynpro. For this we have used JDBC method by which we create class file which will have JDBC connectivity and logic for getting data from backend. This class file then used for display, update and other operations. And the context is built at design time.
    This is not proper method, as this doesn't come under perview of MVC concept.
    I want to use EJB Models for this case. But I'm stuck with some problems.
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    3. What are the most logical steps to be used in this case.
    Any pointers for this will greatly appreciated with points?
    So far I was able to do create EJB module of Entity Bean type with all interfaces. But beyond this I'm not able to proceed. Do let me know the step wise procedure for this kind of scenario.
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    Srikant

    Hi Srikant,
    I have worked on similar stuff, but the scenario was a little different. I worked on creating Web Services using EJBs, but the basic part was that, the web service was supposed to interact with the SQL Server database. So maybe I can help you...
    First thing which is needed is that you have created the JDBC Connector in your Visual Administrator correctly. If you wish to cross check, you can see my answer in the following thread:
    JDBC error
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    <b>InitialContext initialContext = new InitialContext();
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    Bye
    Ankur
    Do reward points if it helps!!

  • 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.
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    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

  • Use Some Models in Web Dynpro Application

    Hi,
    1. When creating a model we need to refer it to r/3 environment. what should we do if we transfer the application to another environment?
    2. I would like to have an application with 4 views that each one activates A DIFFERENT bapi/rfc function.
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    Thanks in advance,
    Ronit

    Hi,
    please find below path for adding External Jar files.
    right click on the webdynpro dc and select the properties .
    then clcik on Java Build path->select libraries->select External External Jars.
    after that just rebuild your project (not Build).
    Regards,
    Govindu
    Edited by: Govindu Nagotla on Apr 12, 2011 2:28 PM

  • 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.
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    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.
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    If you create a package inside a normal webdynpro project, then you can not reuse them later in other webdynpro proj
    Go with SAP component model by creating 2 development components one for java and other for webdynpro and define the reusability (Used DC's) in DC Metadata.
    Regards
    Kalyan

  • Problem while accesing EJB DC from Web Dynpro DC - Help Needed.

    Hello All,
    I am trying to acces an EJB from a Web Dynpro, can you please suggest what I could have done wrong I have added all the required jar file, can you please suggest what could be wrong:
    Dec 25, 2006 1:56:04 AM /userOut/Development Component (com.sap.ide.eclipse.component.provider.listener.DevConfListener) [Thread[ModalContext,5,main]] ERROR: john/wd: Build failed for sap.com/john/wd(MyComponents) in variant "default":
    The Build terminated with errors
    ------------------------------------- Build log ------------------------------------------------------
    Build Plugin Version: 1.6.3 (630_REL) from 03 November 2004 12:47:57
    Start: 25.12.2006 01:56:03
    Temp dir: C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9
    prepare:
        [mkdir] Created dir: C:Documents and Settingsjohn.dtcLocalDevelopmentDCssap.comjohnwd_compgendefaultdeploy
        [mkdir] Created dir: C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9gwdpackages
    gen:
        [ddgen]
        [ddgen] [Info]    Property deployment is true: Deployment information is provided!
        [ddgen] [Info]    Property sourcepath: C:Documents and Settingsjohn.dtcLocalDevelopmentDCssap.comjohnwd_compsrc/packages
        [ddgen] [Info]    Property targetpath: C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9/gdd
        [ddgen] [Info]    Property archivename: sap.com~john~wd
        [ddgen] [Info]    Property vendor: sap.com
        [ddgen] [Info]    Property dcname: john/wd
        [ddgen] [Info]    Property language: Available languages are automatically determined!
        [ddgen] [Info]    Property addpaths ...
        [ddgen] [Info]       SapMetamodelDictionaryContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_BUILDT/DCs/sap.com/tc/bi/mm/_comp/gen/default/public/def/lib/model
        [ddgen] [Info]       SapMetamodelWebdynproContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_BUILDT/DCs/sap.com/tc/bi/mm/_comp/gen/default/public/def/lib/model
        [ddgen] [Info]       SapMetamodelWebdynproContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_JTECHS/DCs/sap.com/tc/wdp/metamodel/content/_comp/gen/default/public/default/lib/java
        [ddgen] [Info]       SapMetamodelDictionaryContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_JTECHS/DCs/sap.com/tc/ddic/metamodel/content/_comp/gen/default/public/default/lib/java
        [ddgen] [Info]    Destination directory C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9gdd does not exist
        [ddgen] [Info]    Destination directory C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9gdd is created
        [ddgen] [Info]    Initialize generation templates from configuration jar:file:/C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_BUILDT/DCs/sap.com/tc/bi/dict/_comp/gen/default/public/def/lib/java/SapDictionaryGenerationCore.jar!/DictionaryGenerationConfigurationCompiled.xml
        [ddgen] [Info]    Generating dbtables/sdmDeployDd.xml
        [ddgen] [Info]    Generation finished (0 seconds)
        [ddgen]
        [wdgen]
        [wdgen] [Info]    Property deployment is true: Deployment information is provided!
        [wdgen] [Info]    Property sourcepath: C:Documents and Settingsjohn.dtcLocalDevelopmentDCssap.comjohnwd_compsrc/packages
        [wdgen] [Info]    Property targetpath: C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9gwd
        [wdgen] [Info]    Property archivename: sap.com~john~wd
        [wdgen] [Info]    Property vendor: sap.com
        [wdgen] [Info]    Property dcname: john/wd
        [wdgen] [Info]    Property language: Available languages are automatically determined!
        [wdgen] [Info]    Property addpaths ...
        [wdgen] [Info]       SapMetamodelDictionaryContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_BUILDT/DCs/sap.com/tc/bi/mm/_comp/gen/default/public/def/lib/model
        [wdgen] [Info]       SapMetamodelWebdynproContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_BUILDT/DCs/sap.com/tc/bi/mm/_comp/gen/default/public/def/lib/model
        [wdgen] [Info]       SapMetamodelWebdynproContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_JTECHS/DCs/sap.com/tc/wdp/metamodel/content/_comp/gen/default/public/default/lib/java
        [wdgen] [Info]       SapMetamodelDictionaryContent.zip - C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_JTECHS/DCs/sap.com/tc/ddic/metamodel/content/_comp/gen/default/public/default/lib/java
        [wdgen] [Info]    Initialize generation templates from configuration jar:file:/C:/Program Files/SAP/JDT/eclipse/plugins/com.sap.tc.ap/comp/SAP_BUILDT/DCs/sap.com/tc/bi/wd/_comp/gen/default/public/def/lib/java/SapWebDynproGenerationCore.jar!/WebDynproGenerationConfigurationCompiled.xml
        [wdgen] [Info]    TextView DefaultTextView: UIElement does not have a label
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPrivateMyAppView.java
        [wdgen] [Info]    Generating packages/myCompany/MyAppView.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/InternalMyAppView.java
    Warning: searching view element definition for TransparentContainer RootUIElementContainer
    Warning: searching view element definition for FlowLayout Layout
    Warning: searching view element definition for TextView DefaultTextView
    Warning: searching view element definition for FlowData DefaultTextView_layoutdata
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPublicMyApp.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPrivateMyApp.java
        [wdgen] [Info]    Generating packages/myCompany/MyApp.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/InternalMyApp.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPublicMyAppInterfaceCfg.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IExternalMyAppInterfaceCfg.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPrivateMyAppInterfaceCfg.java
        [wdgen] [Info]    Generating packages/myCompany/MyAppInterfaceCfg.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/InternalMyAppInterfaceCfg.java
        [wdgen] [Info]    Generating packages/myCompany/MyAppInterfaceCfg.wdcontroller
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPublicMyAppWinInterfaceView.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPrivateMyAppWinInterfaceView.java
        [wdgen] [Info]    Generating packages/myCompany/MyAppWinInterfaceView.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/InternalMyAppWinInterfaceView.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPublicMyAppInterface.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IExternalMyAppInterface.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/IPrivateMyAppInterface.java
        [wdgen] [Info]    Generating packages/myCompany/MyAppInterface.java
        [wdgen] [Info]    Generating packages/myCompany/wdp/InternalMyAppInterface.java
        [wdgen] [Info]    Generating packages/myCompany/MyAppInterface.wdcontroller
        [wdgen] [Info]    Generating packages/myCompany/wdp/IMessageMyApp.java
        [wdgen] [Info]    Generating configuration/Components/myCompany.MyApp/MyApp.xml
        [wdgen] [Info]    Generating packages/myCompany/wdp/ResourceMyApp.properties
        [wdgen] [Info]    Generating configuration/Applications/myCompany.MyApp/MyApp.xml
        [wdgen] [Info]    Generating portalapp.xml
        [wdgen] [Info]    Generating wd.xml
        [wdgen] [Info]    Generating application.xml
        [wdgen] [Info]    Generating application-j2ee-engine.xml
        [wdgen] [Info]    Generating PublicPartFileList.properties
        [wdgen] [Info]    Generating PublicPartFileList.xml
        [wdgen] [Info]    Generation finished (0 seconds)
        [wdgen]
        [mkdir] Created dir: C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9classes
        [javac] Compiling 22 source files to C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9classes
    C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9gwdpackagesmyCompanyMyApp.java:121: cannot access javax.ejb.EJBHome
    file javaxejbEJBHome.class not found
              SimpleSession mySessionBean = myBeanHome.create();
                                                            ^
    C:Documents and Settingsjohn.dtcLocalDevelopmentt73950E79E943BFC31907C47C958D3CA9gwdpackagesmyCompanyMyApp.java:123: cannot access javax.ejb.EJBObject
    file javaxejbEJBObject.class not found
              String x = mySessionBean.businessMethod();
                                            ^
    2 errors
    Build with ERRORS
    file:C:/Documents and Settings/john/.dtc/LocalDevelopment/DCs/sap.com/john/wd/_comp/gen/default/logs/build.xml:58: Compile failed; see the compiler error output for details.
    End: 25.12.2006 01:56:04 (Duration: 1 second)
    Message was edited by:
            John Bray

    have a look _
    Using EJBs in Web Dynpro (20)
    <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/a11ba7c8-0401-0010-23b5-f5d2394c0ac0">https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/downloaditem?rid=/library/uuid/a11ba7c8-0401-0010-23b5-f5d2394c0ac0</a>

  • Problem Importing Web Service as model in Web Dynpro

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    at com.sap.ide.webdynpro.tsmodel.application.actions.CreationAction.access$000(CreationAction.java:24)
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  • How to use a CAS in web dynpro with NWDS 7.0

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    hi
    CAF Core project comes with a sub-project WebDynpro.
    You can implement business logic using CAF Core Service ,integrate it in WebDynpro UI.
    1)Select your CAF project root , right click on it and select u201CCreate Web Dynpro Modelu201D from the context menu.
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  • Using .properties file in web dynpro

    Hi,
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            wdComponentAPI.getDeployableObjectPart(),
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    Message was edited by:
            Anilkumar Vippagunta

  • Using FREE-SELECTIONS_DIALOG in Web Dynpro

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  • 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
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         ... 3 more
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