I use tRest to call web,and return data, tRest returns schema include Body and ERROR_CODE, if ERROR_CODE if null,means the call is OK.
So I use run if trigger to connect tRest and tjava, condition is : tRest.ERROR_CODE!=null . Talend return error:tRest cannot be resolved to a variable.
So how do i write this condition? I am a bit confused with the way to get value in talend, and can't find it in the document.
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