Including Transformations
You can include an ST program trafoin another ST program as follows:
<tt:include name="trafo" [templates="tmpl1 tmpl2 ..."] />
This statement makes the templates and type definitions of the included program usable in the current ST program. The ST program trafo must exist actively in the repository. trafo is not case-sensitive.
The ST command tt:include can be executed in an ST program only outside of templates. By default, it includes all named templates of transformation trafo on the transformation level (unnamed main templates are not included). Make sure that no namespace conflicts occur; a transformation is not allowed to include itself.
If you specify the attribute templates, only the templates tmpl1 tmpl2 specified there and the templates called by them using tt:apply are included.
Note
Only those transformations can be included (in another transformation) whose named templates are not in conflict with the existing named templates. Using tt:apply, you can use the included named templates as subtemplates in "including" templates.
Example
The ST program below corresponds to the example from Subtemplates Without Their Own Data Roots, except that the subtemplate of an included ST program is used.
<tt:transform template="TEMP_MAIN"
xmlns:tt="http://www.sap.com/transformation-templates">
<tt:root name="ROOT"/>
<tt:template name="TEMP_MAIN">
<week>
<day1
tt:ref="ROOT.DAY1">
<tt:apply name="TEMP_SUB" />
</day1>
<day2
tt:ref="ROOT.DAY2">
<tt:apply name="TEMP_SUB" />
</day2>
...
</week>
</tt:template>
<tt:include name="..." />
</tt:transform>
The statement tt:include could also be placed before the main template. The included ST program can be implemented as follows:
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates">
<tt:template>
...
</tt:template>
<tt:template name="TEMP_SUB">
<name>
<tt:value ref="$ref.name"/>
</name>
<work>
<tt:value ref="$ref.work"/>
</work>
</tt:template>
</tt:transform>