calling JAVA UDF through trigger

calling JAVA UDF through trigger

Hello

I want to write a trigger on a table.
In the trigger  I want to call Java method and pass some data from the
 table(on which trigger is set) as parameters to this method.
Can I do this in postgreSQL and if yes how?
Example would be helpful :)

Thanks
Swati
-- 
" Darkest Hour Of The Night Comes Before Dawn "
Swati 

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