how to set a constant attribute to strans xml transformation?

[Former Member]

Hi,experts.
How to set a constant attribute to xml transformation.
For example i have only sender field and want to get an xml = <issuance xmlns="http://www.w3schools.com" sender="700069297">

</issuance>

I found how to set an sender attribute by ref, but how to set a constant of xmlns?

<?sap.transform simple?>
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates" xmlns:ddic="http://www.sap.com/abapxml/types/dictionary" xmlns:def="http://www.sap.com/abapxml/types/defined">
  <tt:root name="ROOT" type="ddic:ZVA_ESCHF_GET"/>
  <tt:template>
    <issuance>
       
       <tt:attribute name="sender" value-ref="ROOT.SENDER"/>
    </issuance>
  </tt:template>
</tt:transform>

[Sandra_Rossi]

Why would you want to define a namespace as a variable? Transformations refer 99.9% of the time to fixed namespaces. If you want a special transformation, completely dynamic, use XSLT.

[Former Member]

What do u mean by "namespace variable", sender is always different, xmlns is always the same, should i use xslt?

[Sandra_Rossi]

No. If it's a constant namespace, did you try this directly in the simple transformation?

<issuance xmlns="http://www.w3schools.com">

[Former Member]

in that case i couldn't get a closing 
</issuance> tag

[Former Member]

I couldn't get a closing tag even withount xmlns tag :
Mine xml, i want to get : <issuance sender="700069297"></issuance>
mine trans : 

<?sap.transform simple?>
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates" xmlns:ddic="http://www.sap.com/abapxml/types/dictionary" xmlns:def="http://www.sap.com/abapxml/types/defined">
  <tt:root name="ROOT" type="ddic:ZVA_ESCHF_GET"/>
  <tt:template>
    <issuance>

       <tt:attribute name="sender" value-ref="ROOT.SENDER"/>
    </issuance>
  </tt:template>
</tt:transform>

[Sandra_Rossi]

I guess you want to obtain this:

<issuance xmlns="http://www.w3schools.com" sender="700069297">
</issuance>

Your expectation is incorrect, both forms are valid and strictly identical, and will be accepted by all the XML readers I know.

There's no way you can obtain the end tag.

[Former Member]

Ok, but what if some of xml documents have different headers?
For example 
1)

<issuance xmlns="http://www.w3schools.com" sender="400052406">

2)

<issuance xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.w3schools.com" xsi:schemaLocation="http://www.w3schools.com" sender="300062307">

only 'sender' is attribute, as i understand.
How to setup an  xml transformation in this case?

[Sandra_Rossi]

Why would you want to define a namespace as a variable? Transformations refer 99.9% of the time to fixed namespaces. If you want a special transformation, completely dynamic, use XSLT.