gate.creole.annic.lucene

Class LuceneIndexSearcher

java.lang.Object

gate.creole.annic.apache.lucene.search.Searcher

gate.creole.annic.apache.lucene.search.IndexSearcher

gate.creole.annic.lucene.LuceneIndexSearcher

All Implemented Interfaces:

Searchable, Remote

public class LuceneIndexSearcher
extends IndexSearcher

This class provides an implementation that searches within the lucene index to retrieve the results of a query submitted by user.

Author:

niraj

Constructor Summary

Constructors

Constructor and Description
LuceneIndexSearcher(Directory directory) Creates a searcher searching the index in the provided directory.
LuceneIndexSearcher(IndexReader r) Creates a searcher searching the provided index.
LuceneIndexSearcher(String path) Creates a searcher searching the index in the named directory.

Method Summary

Modifier and Type	Method and Description
TopDocs	search(Query query, Filter filter, int nDocs) Searches through the lucene index and returns an instance of TopDocs.

Methods inherited from class gate.creole.annic.apache.lucene.search.IndexSearcher

close, doc, docFreq, explain, getFirstTermPositions, initializeTermPositions, maxDoc, rewrite, search, search, setFirstTermPositions

Methods inherited from class gate.creole.annic.apache.lucene.search.Searcher

getSimilarity, search, search, search, search, search, setSimilarity

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LuceneIndexSearcher

public LuceneIndexSearcher(String path)
                    throws IOException

Creates a searcher searching the index in the named directory.

Throws:

IOException

LuceneIndexSearcher

public LuceneIndexSearcher(Directory directory)
                    throws IOException

Creates a searcher searching the index in the provided directory.

Throws:

IOException

LuceneIndexSearcher

public LuceneIndexSearcher(IndexReader r)

Creates a searcher searching the provided index.

Method Detail

search

public TopDocs search(Query query,
                      Filter filter,
                      int nDocs)
               throws IOException

Searches through the lucene index and returns an instance of TopDocs.

Specified by:

search in interface Searchable

Overrides:

search in class IndexSearcher

Throws:

IOException