One of the things that really can get me up the red field is when I get an <null> element when working with a SAP PI mapping. Or I would say rather debugging, because of some strange incoming data. Why not give me something that I can us in way mapping to check for. The <null> gives a lot of issues for figuring out if the values work.
I’m not sure what causes this to be like it is. It may be a null string or something like it.
The build in function “isNil” delivered this result. I guess it checks if the values is XSI:Nil. I would have guess that this delivered a false value for this input.
So I had to create my own function to check for this.
The isNull function that I created looks like this:
for(int i=0;i<var1.length;i++){
if (var1[i]==null){
result.addValue(“true”);
}else{
result.addValue(“false”);
}
}
If I then want to do an OR function after this, where on input can be null then it does not solve my problem. false or <null> does give <null>. Dam. So I cannot use the function that I wanted.
So I just have to build in the length check into my null function, so it does support the extra function. I could also build an OR function to support this extra features, but that will not add a lot of extra value. I’m only using this
So the new function looks like this.
for(int i=0;i<var1.length;i++){
String tmp = var1[i];
if (tmp == null){
result.addValue(“false”);
}else{
result.addValue(tmp.length()>0);
}
}
I do hope that you find this helpful and it solve some of your problems. I’m working on creating a course around how to use SAP PI/PO. I have created some free videos around creating your first scenario that you can get on http://picourse.com
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