topic Re: global variable and vectors in Talend Data Catalog

global variable and vectors

MZein — Sat, 16 Nov 2024 04:16:51 GMT

I have save a set of data inside a vector in tJavaflex component. after that I generate global variable for my array as follows

globalMap.put("MyEnvironment", myEnv);

where myEnv is a vector of string.

How I can reuse this global variable in another component like tMap ( as a vector that i can index it)

By the way I tried myv = (java.util.Vector<String>)globalMap.get("MyEnvironment"); to retrieve my vector but it return null !

Re: global variable and vectors

Anonymous — Fri, 25 Oct 2019 03:54:44 GMT

Hi
If myEnv is a column name, you need to change the expression to
globalMap.put("MyEnvironment", row1.myEnv);

// row1 is the input flow name.
on other component in next subjob, you can get the value with expression:
(String)globalMap.get("MyEnvironment")

Regards
Shong

Re: global variable and vectors

MZein — Fri, 25 Oct 2019 09:07:53 GMT

Thank you for your replay. I use it but the always the global variable takes the previous value of the input row. please note the photos. I want to generate a file for each value of env

Regards

env1.PNG
env2.PNG

Re: global variable and vectors

MZein — Fri, 25 Oct 2019 15:36:43 GMT

Hi, I forget to tell that myEnv is not a column name it is arrayList variable I generate it inside tJavaflex component. The most important thing is that why when I try to use this global variable (inside tmap for example) it consider it just as String not arraylist ?

Thanks to all and hope to help faster