udf mapping: any way to detect last processed record?

[Former Member]

Hi !

I need to detect inside my java user defined function, in the graphical mapping, if I am processing the last record of my input message, for example to add a trace message about how many records were processed, etc....I know I can detect the first one by mapping a function to the root node...and how about the last one ? are there any internal mapping variables available to recall inside a udf ?

thanks,

Matias

[MichalKrawczyk · Accepted solution]

Hi,

one way would be to use a UDF of type queue

which will store all values from your message

this way you can get a total number of records

if you have the total then you know which one is the last one...

Regards,

michal

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[Former Member · Accepted solution]

Hi Michal !

It worked ok.

I made a queue udf function that counts all NON context change values and passes them as result. Then in other function when the last record was detected, I created a trace item.

Thanks !

PD: points were rewarded.

[Former Member]

I propose you this solution:

create a copy of the node record you want to count (in the message mapping tool, left -click with the on element and "Duplicate Subtree) and map it in order to recover from the Global Container the number in the counter.

Regards,

Sandro

[Former Member]

The Michal's solution is more smart and easy then mine.

Regards,

Sandro

[Former Member]

Hi !

I tested your solution too, It worked. I will save this one for another case.

Thanks !

Points rewarded.