Re: [Servingxml-help] header content

[Daniel P. <dan...@sy...>]

Ravi,

Thanks for the feedback, I think you're right.  Expect to see this in =
the next release, but you can have this now, by making a small change to =
the ElementMap, FieldElementMap, and GenerateElement java files, all in =
the com.servingxml.components.recordmapping package.  In the =
startContent method, remove the check "if value.length() > 0":

            //if (value.length() > 0) {
              Name name =3D mappedAttribute.createName(record);
              String attQName =3D name.toQName(context);
              =
atts.addAttribute(name.getNamespaceUri(),name.getLocalName(),
                                attQName,"CDATA",value);
            //}

-- Daniel


  ----- Original Message -----=20
  From: Ravikumar Tadysetty=20
  To: Daniel Parker=20
  Sent: Thursday, April 05, 2007 6:38 PM
  Subject: Re: [Servingxml-help] header content


  Thanks for the solution. That is exactly what I wanted.

  One more question:

  In the below record mapping, if reference is blank, then the attribute =
on transaction element is removed. Instead I am expecting it to remain =
with an empty value.  Is there a way to retain the attribute even if the =
value is blank, just as we do for elements.=20

  And then, may be we can remove them using something like  =
sx:removeEmptyAttributeFilter.

  expected :  <transaction reference=3D"">
  actual     :  <transaction>

          <transaction>
            <sx:fieldAttributeMap field=3D"id" attribute=3D"id"/>
            <sx:fieldAttributeMap field=3D"reference" =
attribute=3D"reference"/>=20
            <sx:fieldElementMap field=3D"description" =
element=3D"description"/>
          </transaction>


  On 4/4/07, Daniel Parker <dan...@sy...> wrote:=20
    Currently, you only have one option to examine the values of =
specific fields in the header or trailer records as they are read.  That =
is to use a sx:flatFileSignature element, with recordType=3D<record type =
name of a header or trailer record>, field=3D<field name in the header =
or trailer record>, custom=3D"yes", class=3D<implementation of =
com.servingxml.components.recordio.flatfile.SignatureMethod >, and =
validate=3D"yes".

    Your implementation would look like

    public class MySignatureMethod implements SignatureMethod {
      private Value expectedValue;

      public void data(byte[] bytes, int start, int length)
      throws ServingXmlException {
        //  Do nothing
      }

      public void validate(Value expectedValue) throws =
ServingXmlException {
        this.expectedValue =3D expectedValue;

        //  This is the value for the header/trailer field.  Your only =
real option at this
        //  point is to throw an exception if you don't like it
      }

      public Value getSignature() {
        return expectedValue;
      }
    }

    Check the element reference on sx:flatFileSignature, and the =
javadocs for SignatureMethod.

    -- Daniel


      ----- Original Message -----=20
      From: Ravikumar Tadysetty=20
      To: Daniel Parker=20
      Sent: Wednesday, April 04, 2007 3:12 PM
      Subject: [Servingxml-help] header content


      Hi

      I am using sx:flatfileheader to indicate a header record of a flat =
file. How can I examine the contents of this record in Java code. via =
RecordFilter or some other means.

      Thanks
      Ravi



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