IBM webMethods Hybrid Integration

IBM webMethods Hybrid Integration

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  • 1.  Querying the database

    Posted Wed July 10, 2002 08:30 AM

    Hi again! :smiley:

    I came acrossed a problem. I am to write a java program to retrieve records from the Tamino database.

    I read the documentation on “Say hello!”, Tamino API for java. The doc helped alot for establishing the connection and obtaining an accessor.

    So far my program can be compiled, the problem I came acrossed was the query part:

    //Instantiate an empty TXMLObject instance using the DOM object model
    TXMLObject xmlObject = TXMLObject.newInstance(TDOMObjectModel.getInstance());

    //Establish the Tamino connection
    TConnection connection = TConnectionFactory.getInstance().newConnection(DATABASE_URI);

    //Obtain a TXMLObjectAccessor with a DOM object model
    TXMLObjectAccessor xmlObjectAccessor = connection.newXMLObjectAccessor(TAccessLocation.newInstance(“TCM”),TDOMObjectModel.getInstance());

    //Prepare to read the instance
    TQuery query = TQuery.newInstance(xmlObject.getDoctype() + “[@ino:id=” + xmlObject.getId() + “]”);

    //Invoke the query operation
    TResponse response = xmlObjectAccessor.query(query);

    The error was, com.softwareag.tamino.db.API.accessor.TQueryException
    Access Failure:
    ReturnValue:8320
    Code:INOXIE8320
    MessageText:Error parsing the XQL query
    MessageLine:Unexpected token [ found
    at com.softwareag.tamino.db.API.accessor.TAccessFailureVerifier.verifyQueryResponse(TAccessFailureVerifier.java:67)
    at com.softwareag.tamino.db.API.accessor.TXMLObjectAccessorImpl.query(TXMLObjectAccessorImpl.java:234)
    at GetInput.(GetInput.java:35)
    at GetInput.main(GetInput.java:60)

    What do you think is wrong?

    -KAren-
    :rolleyes:


    #webMethods-Tamino-XML-Server-APIs
    #webMethods
    #API-Management


  • 2.  RE: Querying the database

    Posted Wed July 10, 2002 10:41 AM

    Hi Karen.
    I think the problem is that because you just created an empty TXMLObject, it doesn’t have a doctype (or ino:id) yet. So getDocType returns null and the query is invalid without a doctype before the opening “[”.

    You could substitute strings with known values for the document type and ino:id, and the query should work:

    String myDocType = “doctype”;
    String myInoId = “123”;

    TQuery query = TQuery.newInstance(myDocType + “[@ino:id=” + myInoId + “]”);

    The example provided in the API package (com.softwareag.tamino.db.API.examples.greeting.XMLGreeting.java) inserts a record first, then does a query to get it back.


    #webMethods
    #API-Management
    #webMethods-Tamino-XML-Server-APIs


  • 3.  RE: Querying the database

    Posted Thu July 11, 2002 05:22 AM

    Heya Bill!

    Thanks for replying. I managed to get it done!!!

    :smiley:


    #webMethods-Tamino-XML-Server-APIs
    #API-Management
    #webMethods