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How to create datasource alias in EP project?

Posted on Feb 23, 2005 at 06:54 AM 17 Views

Hi,

I want to use SQLJ in a JSP Dynpro Portal Component, and have followed the example given in "Getting started with relational persistence". The problem is that the document does not explain about creating a data source (which is what I assume I need to create the context with java:comp/env/[datasource alias]).

When I try to create a datasource alias in NWDS, it looks for an Enterprise Application project in which to create it, but my project is obviously not applicable.

Please help.

Thanks,

Martin

P.S. I see in the online help that you can add a data-source-aliases.xml file to your META-INF folder (is this applicable to EP projects?). Also, in the data-source-aliases.xml file, you still need to add the name of the datasource - so what is the name of the Default datasource?

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  • author's profile photo Detlev Beutner
    Detlev Beutner
    Posted on Feb 24, 2005 at 01:14 PM
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    Hi Martin,

    > you can add a data-source-aliases.xml file to your

    > META-INF folder

    > so what is the name of the Default datasource?

    See http://help.sap.com/saphelp_nw04/helpdata/en/c3/4f7770b21b9f459cb13424296726b1/frameset.htm - you can generically use a variable.

    > is this applicable to EP projects?

    I won't expect this (as a portal project isn't a J2EE application itself but part of another).

    Anyhow, the datasources (and with them their alias within the J2EE engine) are managed via VisualAdmin, see http://help.sap.com/saphelp_nw04/helpdata/en/11/4963a6cf52ad429b3b3b65e003f2d1/frameset.htm

    Hope it helps

    Detlev

    PS: Please consider to reward points if answers are helpful. Thanks in advance!

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    • Detlev Beutner Former Member
      Feb 24, 2005 at 03:35 PM

      Hi Martin,

      > no idea where such an XML file in a Portal project

      > would be deployed to, if at all

      The answer you gave by yourself:

      > to your META-INF folder

      Such a folder exists also in PAR files, but as said, I don't expect that PAR as non-J2EE-apps would consume this.

      > I have no admin access,

      > and no J2EE Visual Administrator.

      But you will have some process how people will do things on it, won't you?!

      I <i>think</i> (just looked at out installation, but it wasn't me who installed) that the standard alias is built by the convention "SAP" + <SYSTEMID> + "DB", so our portal DB alias is "SAPNPTDB".

      Hope it helps nevertheless

      Detlev

      PS: Even if someone cannot solve your problem, you maybe should be somewhat more generous and at least show that you appreciate any help... that's what the radio buttons are for...

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