org.apache.nutch.searcher
Class LuceneSearchBean

java.lang.Object
  org.apache.nutch.searcher.LuceneSearchBean

All Implemented Interfaces:

Closeable, VersionedProtocol, HitDetailer, RPCSearchBean, SearchBean, Searcher

public class LuceneSearchBean
extends Object
implements RPCSearchBean

Field Summary

static long

VERSION

Fields inherited from interface org.apache.nutch.searcher.SearchBean

LOG

Constructor Summary

LuceneSearchBean(Configuration conf, Path indexDir, Path indexesDir)
Construct in a named directory.

Method Summary

void	close()
HitDetails	getDetails(Hit hit) Returns the details for a hit document.
HitDetails[]	getDetails(Hit[] hits) Returns the details for a set of hits.
String	getExplanation(Query query, Hit hit) Return an HTML-formatted explanation of how a query scored.
long	getProtocolVersion(String protocol, long clientVersion)
boolean	ping()
Hits	search(Query query) Return the top-scoring hits for a query.
Hits	search(Query query, int numHits, String dedupField, String sortField, boolean reverse) Deprecated.

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final long VERSION

See Also:

Constant Field Values

Constructor Detail

LuceneSearchBean

public LuceneSearchBean(Configuration conf,
                        Path indexDir,
                        Path indexesDir)
                 throws IOException

Construct in a named directory.

Parameters:

conf -

dir -

Throws:

IOException

Method Detail

search

@Deprecated
public Hits search(Query query,
                              int numHits,
                              String dedupField,
                              String sortField,
                              boolean reverse)
            throws IOException

Deprecated.

Description copied from interface: Searcher

Return the top-scoring hits for a query.

Specified by:

search in interface Searcher

Throws:

IOException

search

public Hits search(Query query)
            throws IOException

Description copied from interface: Searcher

Return the top-scoring hits for a query.

Specified by:

search in interface Searcher

Throws:

IOException

getExplanation

public String getExplanation(Query query,
                             Hit hit)
                      throws IOException

Description copied from interface: Searcher

Return an HTML-formatted explanation of how a query scored.

Specified by:

getExplanation in interface Searcher

Throws:

IOException

getDetails

public HitDetails getDetails(Hit hit)
                      throws IOException

Description copied from interface: HitDetailer

Returns the details for a hit document.

Specified by:

getDetails in interface HitDetailer

Throws:

IOException

getDetails

public HitDetails[] getDetails(Hit[] hits)
                        throws IOException

Description copied from interface: HitDetailer

Returns the details for a set of hits. Hook for parallel IPC calls.

Specified by:

getDetails in interface HitDetailer

Throws:

IOException

ping

public boolean ping()
             throws IOException

Specified by:

ping in interface SearchBean

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Throws:

IOException

getProtocolVersion

public long getProtocolVersion(String protocol,
                               long clientVersion)
                        throws IOException

Specified by:

getProtocolVersion in interface VersionedProtocol

Throws:

IOException