SQLJ use in Web Dynpro

Dear All.
How can i use my SQLJ and other helper classes (DB engine) in Web Dynpro? Where can i create the connection context? Is it possible, to use java relational persistence in Web Dynpro without EJB model?
Best Regards, Andrey.

Hi Andrey,
you should wrap your SQLJ related classes behind some EJB module project and another application project. You can create the Connection Context class and other SQLJ classes just by saying File>New>Other>Persistence>SQLJ Source. So first create your connection context class there and llok up for the Datasource alias as defined in your application.xml file in your application project. Later on in the business methods of your session bean you can access these sqlj helper classes for processing ad access the business methods from web dynpro through EJB project reference or local web service model.
For relational persistence you can use JDO if you dont want to use EJB CMP. Though for JDO, there are no wizards in NWDS for creating the .map or .jdo files. So you have to create these files by your own and have to take care of syntactical errors as in any xml.
Regards,
Shubhadip

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>
Pradip R[https://cw.sdn.sap.com/cw/docs/DOC-37733
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Marek Veverka wrote:
Hi Gurus,
>
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Hi, All
Error when processing your request
What has happened?
The URL http://erp2005.besuretech.com:8000/sap/bc/webdynpro/sap/zz_test5/ was not called due to an error.
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The following error text was processed in the system E05 : Error when Creating Component ZZ_TEST6. ZZ_TEST6 Is a Component Interface, Therefore, an Instance Cannot Be Created. Name of Component May Not Be Specified. (Used Component: ZZ_TEST5, Component Usage: MYCOMPUSAGE)
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Method: IF_WD_COMPONENT_USAGE~CREATE_COMPONENT of program CL_WDR_COMPONENT_USAGE========CP
Method: RESOLVE_MAPPING of program CL_WDR_CONTEXT_NODE_INFO======CP
Method: MAP of program CL_WDR_CONTEXT_NODE_MAP=======CP
Method: MAP of program CL_WDR_CONTEXT_NODE_MAP=======CP
Method: IF_WD_CONTEXT_NODE~GET_ELEMENT of program CL_WDR_CONTEXT_NODE_MAP=======CP
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If you do not yet have a user ID, contact your system administrator.
Error code: ICF-IE-http -c: 600 -u: LIPEI -l: E -s: E05 -i: erp2005_E05_00 -w: 0 -d: 20070120 -t: 212436 -v: RABAX_STATE -e: UNCAUGHT_EXCEPTION
HTTP 500 - Internal Server Error
Your SAP Internet Communication Framework Team
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Thanks

Hi,
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Good Luck,
Ben

SQLJ use in Web Dynpro

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