Is this groovy Syntax correct(ish) for returning custom value if not null

Question

Hi

Is this correct syntax? I know I am missing some import stuff, but I am reading the groovy documentation and hoping this would be correct?

def this = getCustomFieldValue("myField") ?: 0
If(this==0){//do stuff
 Else{//do other stuff
 }
 return this
 }

Douglas Coats · Answer

Hi Thanks for replying.

Well my attempt in using the Elvis Operator was to simplify the checking for null values and return a default value if it were in fact null. That dreaded null pointer exception. The reason I was asking about the syntax is due to the fact I am somewhat new to groovy and I wanted to make sure I was doing it correctly. Basically trying to leverage the nuances of the language to my advantage while learning new stuff.

Geoff Wilson · Answer

Referencing some of my own, hopefully this generic, completely made up example helps to compare.  I'm honestly not really sure about your ?: 0

final String myField = "Custom Field A";

Object fieldTest = getCustomFieldValue(myField);

Integer total = 0;

if (fieldTest != null) { 
	total = (Integer) fieldTest;
} 
else { 
	total = -1;
}
return total;