How to access variable values across mappings?

Hi all,
I have created the following sample class Test.java and imported it as an archive:
public class Test{
public static String myStringData = null;
In one of the mappings, I have a UDF that sets the "myStringData" using the foll:
Test.myStringData = "Amit";
I am trying to access this variable in another mapping using a UDF with foll statements:
String test = Test.myStringData;
result.addValue(test);
However, on testing the second mapping I get the value of the variable as null. I have activated all objects.
Not sure what exactly I am missing here...Kindly provide your inputs.
Thanks..
Amit

Hi,
>>>Shabarish/Praveen, it would be great if you could provide me with some examples on the suggested approaches as I am relatively new to PI.
the truth is that you should not write anything from message mappings
as:
what happens if the DB table to which you want to write will be locked
what happens if the file will not be accessible ?
it's better not to write anything from message mappings
especiall if you say you're new to XI
maybe just tell us the real problem - why do you think you need to do it?
Regards,
Michal Krawczyk

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