topic Re: tjava not in a flow in Talend Studio

tjava not in a flow

Anonymous — Thu, 18 Oct 2012 12:40:41 GMT

can anyone explain to me, why tjava components (escpecially tjava, tjavarow) don´t have to use in a flow and should predominant used in subjobs?
what are the disadvantages?
thx in advance

Re: tjava not in a flow

Anonymous — Thu, 18 Oct 2012 13:11:29 GMT

Hi
You can use tJavaRow in a data flow and you are able to access the column value, for example:
tMysqlInput--main--tJavaRow--LogRow
on tJavaRow:
output_row.id=input_row.id;
output_row.name=input_row.name.toUpperCase();

Re: tjava not in a flow

Anonymous — Thu, 18 Oct 2012 15:00:16 GMT

thx!
because in the following post https://community.talend.com/t5/Design-and-Development/Using-routines-with-tJava-TtJavaFlex-and-tJavaRow/td-p/72027 they are speaking about not using it in a flow!?

Re: tjava not in a flow

Anonymous — Thu, 18 Oct 2012 15:30:44 GMT

Hi
tJava is used to execute the a piece of Java code, normally, it is used alone as a subjob, because you can't access the column value on tJava component. However, tJavaRow is normally used in a data flow and you are able to access column value.
Shong