ST – Short Reference
Overview
ST programs are XML documents consisting of literal elements and ST commands. ST commands can be distinguished from literal elements (XML elements, attributes and text) by their namespace “http://www.sap.com/transformation-templates“, for which by convention the prefix tt is used.
During serialization and deserialization, literal elements are copied unchanged into a target document or consumed from a source document and compared. ST commands are executed according to their semantics.
Data is addressed via tree structures whose root nodes (data roots) are bound to ABAP data objects. The root nodes can always be addressed directly via their names. In addition, you can define a current node, which you can address using $ref.
Command Overview
Command |
Meaning |
<tt:apply ...> |
Calls a subtemplate |
<tt:assign ...> |
Assigns a value to data |
<tt:attribute ...> |
Defines a non-literal attribute |
<tt:call ...> |
Calls an ST program |
<tt:clear ...> |
Initializes data |
<tt:cond ...> |
Defines a conditioned transformation |
<tt:cond-var ...> |
Defines a condition for variables |
<tt:context ...> |
Defines a context for local data roots in subtemplates |
<tt:copy ...> |
Transforms any data objects to asXML |
<tt:d-cond ...> |
Defines a conditioned transformation for deserialization |
<tt:deserialize ...> |
Defines the direction of the transformation |
<tt:empty ...> |
Defines an empty pattern |
<... tt:extensible=″...″ ...> |
Controls the extensibility of literal XML elements. |
<tt:front ...> |
Determines the leading part of a structured type. |
<tt:group ...> |
Defines a group of conditioned transformations |
<tt:include ...> |
Includes an ST program |
<... tt:lax=″...″ ...> |
Controls the name comparison of literal XML elements |
<tt:loop ...> |
Transforms internal tables |
<tt:namespace ...> |
Declares a namespace |
<tt:node ...> |
Declares a component of a type. |
<tt:parameter ...> |
Declares a parameter |
<tt:read ...> |
Reads a variable from XML |
<tt:ref ...> |
Sets the current node in the own context |
<... tt:ref=″...″ ...> |
Sets the current node for a literal XML element |
<tt:root ...> |
Declares a data root |
<tt:serialize ...> |
Defines the direction of the transformation |
<tt:s-cond ...> |
Defines a conditioned transformation for the serialization |
<tt:skip ...> |
Skips XML elements during deserialization |
<tt:switch ...> |
Defines a case distinction between conditioned transformations |
<tt:switch-var ...> |
Defines a case distinction for variables |
<tt:template ...> |
Defines a main template or subtemplates |
<tt:text ...> |
Explicitly identifies a literal text |
<tt:transform ...> |
Root element of an ST program |
<tt:type ...> |
Defines a type. |
<tt:value ...> |
Transforms elementary data objects |
<... tt:value-ref =″...″ ...> |
Short form for transformation of elementary data objects in literal XML elements |
<tt:variable ...> |
Declares a variable |
<tt:with-parameter ...> |
Passes values to called ST programs and subtemplates |
<tt:with-root ...> |
Passes data nodes to called ST programs and subtemplates |
<tt:write ...> |
Writes the value of a variable to XML |