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extracting the MESSAGE_ID ?

Hi Guys,

I have defined a UDF using the following code and when i map the target element to this UDF i get a yellow colour and when i activate it says mapping is insufficient.

String constant;

java.util.Map map;

map = container.getTransformationParameters();

constant = (String) map.get(StreamTransformationConstants.MESSAGE_ID);

return constant;

any help would be appreciated



Former Member


Why you need single argument? Are u getting any input for this UDF from the source?

If you are not getting any input for the UDF then remove the single argument.


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