Comments
SAP ST TT COND-VAR documentation, setup help and example usage
ARTICLE
ST - tt:cond-var , Condition for Variables
Syntax
...
/tt:cond-var
Effect
The statement tt:cond-var allows conditional transformations for which, unlike tt:[s-ld-]cond , only data content can be specified and not conditions for the data flow. The content of tt:cond-var is processed in accordance with a check condition . cond is the same as general conditions, with the exception that you can specify variables and values as operands, but not data nodes .
Outside of tt:switch-var , you must specify a condition check .
Serialization and Deserialization
During serialization and deserialization, the condition is checked and the content of the element tt:cond-var is only processed if the condition is met.
Note
Unlike general conditional transformations with
tt:[s-|d-]cond , the content of the XML input stream for tt:cond-var is irrelevant.
Example
The following transformation demonstrates a condition for a parameter:
xmlns:tt="http://www.sap.com/transformation-templates">
tt:root name="ROOT"/
<(><<)>tt:template>
<(><<)>tt:apply name="SUB">
tt:with-parameter name="PARA" ref="ROOT"/
<(><<)>/tt:apply>
<(><<)>/tt:template>
<(><<)>tt:template name="SUB">
<(><<)>tt:context>
tt:parameter name="PARA"/
<(><<)>/tt:context>
<(><<)>tt:cond-var check="PARA<(><<)>100">
<(><<)>X val="small">...<(><<)>/X>
<(><<)>/tt:cond-var>
<(><<)>tt:cond-var check="PARA>=100">
<(><<)>X val="big">...<(><<)>/X>
<(><<)>/tt:cond-var>
<(><<)>/tt:template>
/tt:transform
In tt:apply , the value of the data root ROOT is passed to the parameter PARA of the subtemplate
SUB and checked there. Depending on whether the ABAP data object bound to ROOT is smaller, greater than, or equal to 100, the serialization generates either of the following:
X val="small" ... /X
or
X val="big" ... /X
is created. In the check conditions, you could also write
var(PARA) instead of PARA .
Documentation extract taken from SAP system, � Copyright SAP AG. All rights reserved
