Ok thanks,
maybe i understood. I will try to store the field length in a Map in my
custom Similarity and then pick them with
a getLength() method and then divide it by the number of docs so i can have
the average length of a field.
thank you
Raffaele Branda
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Ok. I need to use this class to get length of a given field at index time to
pass it as parameter to the computeNorm method from a custom Similarity.
The issue is that i don't know how to get a FieldInvertState object and
precisely i didn't understand if I have to create and populate it myself o