topic Re: If Then syntax in Talend Studio

If Then syntax

Anonymous — Wed, 10 Apr 2019 12:33:04 GMT

Hi,

I'm having difficulty with If/Then expressions using two variables in tMap:

This example works:

when varTemp = "BBB" then "X" is output otherwise vartemp is output

vartemp = row1.MultiValue.split(";")[1]

varSingleValue2 = Var.vartemp.equals("BBB")?"X":Var.vartemp

This example doesn't, but the logic is the same:

vartemp = row1.MultiValue.split(";")[1]

varSingleValue2 = if (Var.vartemp == "BBB") {
"X";
} else {
Var.vartemp ;
}

When I run the job I get the error:

Syntax error, insert "VariableDeclarators" to complete LocalVariableDeclaration

Could you explain where I am going wrong?

Many thanks,

Bob.

Re: If Then syntax

akumar2301 — Wed, 10 Apr 2019 12:40:33 GMT

in Tmap expression multi-line expression will not work.

in Tjava/Tjavarow/flex

if (Var.vartemp.equals("BBB")) {
SingleValue2 = "X";
} else {
SingleValue2 = Var.vartemp ;
}

Re: If Then syntax

Anonymous — Wed, 10 Apr 2019 12:54:06 GMT

Ok, many thanks.

Bob.

Re: If Then syntax

TRF — Wed, 10 Apr 2019 12:54:35 GMT

You cannot have an "if" expression on the right side of an assignment.

That's the reason why the 1rst example works (using ternary operator) and the 2nd one doesn't.

Also, you should never use "==" to compare 2 strings, String.equals() and equalsIgnoreCase() methods are here for that.

Re: If Then syntax

Anonymous — Fri, 12 Apr 2019 14:34:14 GMT

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