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Manual Reference Pages  -  PLUCENE::SEARCH::SEARCHER (3)

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NAME

Plucene::Search::Searcher - base class for searchers

CONTENTS

DESCRIPTION

Abstract base class for searchers.

Searching is the operation of locating a subset of the documents that contains desired content or that their attributes match some specification.

The input for a search operation is a ’query’ that specifies a criteria for selecting the documents and its output is a list of documents (’hits’) that matched that criteria.

The hit list is typically ordered by some measure of relevancy (called ’ranking’ or ’scoring’) and may contain only a subset of the set of documents that matched the query (typically the ones with the highest scored documents).

The search operation is performed on an ’index’ which is a specialized database that contains a pre compiled information of the document set. The index database is optimized for locating quickly documents that contains certain words or terms.

METHODS

    doc_freq / max_doc / doc / _search_hc search_top

These must be defined in a subclas

    search



        my Plucene::Search::Hits $hits = $searcher->new($query, $filter);



This will return the Plucene::Search::Hits object for the passed in query and filter. At this stage, filter is optional.

    search_hc

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perl v5.20.3 PLUCENE::SEARCH::SEARCHER (3) 2005-09-05

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