How to create a collaboration room of the SAP Portal from EJB tier.

Question

Hi.
I have created a EJB Stateless Session Beans, and I want to create a room using the API of KM.
I have used the code mentioned in this URL: http://help.sap.com/saphelp_nw04s/helpdata/en/7d/c69c42d706c66ae10000000a155106/content.htm
It works fine it is called from Web Dynpro.
I have added in my application-j2ee-engine.xml of the J2EE Proyect.
<application-j2ee-engine>
     <reference
          reference-type="weak">
          <reference-target
               provider-name="sap.com"
               target-type="library">com.sap.km.application</reference-target>
     </reference>
     <reference
          reference-type="weak">
          <reference-target
               provider-name="sap.com"
               target-type="library">com.sap.netweaver.coll.shared</reference-target>
     </reference>
     <reference
          reference-type="hard">
          <reference-target
               provider-name="sap.com"
               target-type="library">com.sap.security.api.sda</reference-target>
     </reference>
     <provider-name>sap.com</provider-name>
     <fail-over-enable
          mode="disable"/>
</application-j2ee-engine>
It was deployed correctly, but when I tried to call the method the server sent me this exception:
Caused by: javax.ejb.EJBException: nested exception is: com.hocplc.speed.exception.BaseException: com.sapportals.wcm.WcmException: Exception accessing CmSystem: com/sapportals/wcm/crt/CrtClassLoaderRegistry
at com.hocplc.speed.business.ejb.facade.ProcesarSolicitudDocumentoSSBean.crearCuartoColaboracion(ProcesarSolicitudDocumentoSSBean.java:188)
at com.hocplc.speed.business.ejb.facade.ProcesarSolicitudDocumentoSSLocalLocalObjectImpl0_0.crearCuartoColaboracion(ProcesarSolicitudDocumentoSSLocalLocalObjectImpl0_0.java:991)
... 25 more
javax.ejb.EJBException: nested exception is: com.hocplc.speed.exception.BaseException: com.sapportals.wcm.WcmException: Exception accessing CmSystem: com/sapportals/wcm/crt/CrtClassLoaderRegistry
I hope that somebody can help me
Regards  in advance.
Manuel Loayza
Living La Vida JAVA

Answer 1

After playing with WebDynPro and PDK  - finally I have a simple list showing.  This simple example has provided me with a good starting point - it is a pity that SAP do not provide such simple examples to allow you to get your head around the concepts.
I used the SAP NetWeaver Developer Studio to produce a version of my example using a WebDynPro and a JSPDynPage (PDK). Deployed to my EP6 server and then created iVews to show then in the appropriate theme.
My thoughts on this now are that both WebDynPro and PDK have merits - both achieve same end result with various affects.  WebDynPro is clunky and PDK is not tighly integrated with the Studio (unlike the .NET one).
To use the PDK you need to understand the TAGs and the SAPDesignGuild website helps  - but would be better if the Studio presented a graphical interface much like DreamWeaver does.
SAP's direction seems to be with WebDynPro and no longer PDK  - wonder if this is truely the case ?.  SAP does have a lot of work to do in my opinion to get both products up to scratch from a useability point of view.