Defining the Transformation Direction 

You can use the following ST commands to limit parts of templates for execution during serialization or deserialization:

 

<tt:serialize>
  ...
</tt:serialize>

 

<tt:deserialize>
  ...
</tt:deserialize>

 

All the template elements listed within the tt:serializeelement are only considered during serialization. All the template elements listed within the tt:deserialize element are only considered during deserialization.

 

Example

The following simple transformation serializes a structure and deserializes to an internal table:

 

<tt:transform xmlns:tt="http://www.sap.com/transformation-templates">

  <tt:root name="ROOT1"/>
  <tt:root name="ROOT2"/>

  <tt:template>
    <X>
      <tt:serialize>
        <Y>
          <tt:value ref=".ROOT1.COL1" />
        </Y>
        <Y>
          <tt:value ref=".ROOT1.COL2" />
        </Y>
        <Y>
          <tt:value ref=".ROOT1.COL3" />
        </Y>
      </tt:serialize>
      <tt:deserialize>
        <tt:loop ref=".ROOT2">
          <Y>
            <tt:value />
          </Y>
        </tt:loop>
      </tt:deserialize>
    </X>
  </tt:template>

</tt:transform>

 

The following ABAP program can call the transformation:

 

DATA xml_string TYPE string.

DATA: BEGIN OF struc,
        col1 TYPE i VALUE 1,
        col2 TYPE i VALUE 2,
        col3 TYPE i VALUE 3,
      END OF struc.

DATA itab TYPE TABLE OF i.

CALL TRANSFORMATION ...
  SOURCE root1 = struc
  RESULT XML xml_string.

CALL TRANSFORMATION ...
  SOURCE XML xml_string
  RESULT root2 = itab.

 

After deserialization, the internal table contains three rows with the values of the structure components.