Nutch Plugin

Hello all, What should i do to write a plugin, that extends "QueryFiltes" and which uses the search results for the given query, to expand the query.

Nutch Plugin

Hi, I want to write a plugin which makes use of the content of the retrieved documents. So which extension point should I use ? For example if I want to expand the query by local feed back method, I have to use the content of the top retrieved documents. So, If I want to write a plugin to do t