org.musicontroller.core.searching
Class Indexer

java.lang.Object
  org.musicontroller.core.searching.Indexer

public class Indexer
extends java.lang.Object

The Indexer periodically scans the database, and updates the Lucene-index. The 'changed'-field of all Documents, contains the 'changed'-property of the object. This is used to see if the object has been changed since the last indexation. Only changed objects are updated in the index to keep disk-io as low as possible. This also means that we have to be sure that the changed-property of all indexed objects really is what is says!

Version:

$Id: Indexer.java,v 1.1 2010/03/16 18:55:42 varienaja Exp $

Author:

Varienaja

Constructor Summary

Indexer(Dao dao)

Method Summary

void	reindexAll() Reindexes all items.
org.apache.lucene.document.Document	reindexArtist(Artist artist)
org.apache.lucene.document.Document	reindexBand(Band band)
org.apache.lucene.document.Document	reindexInstrument(Instrument instrument)
org.apache.lucene.document.Document	reindexKeyword(Keyword keyword)
org.apache.lucene.document.Document	reindexPlaylist(Playlist playlist)
org.apache.lucene.document.Document	reindexSong(Song song)

Methods inherited from class java.lang.Object

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

Constructor Detail

Indexer

public Indexer(Dao dao)

Method Detail

reindexAll

public void reindexAll()

Reindexes all items. Reindexing is done lazily, items that did not change since the last index-update are not processed.

reindexSong

public org.apache.lucene.document.Document reindexSong(Song song)

reindexBand

public org.apache.lucene.document.Document reindexBand(Band band)

reindexArtist

public org.apache.lucene.document.Document reindexArtist(Artist artist)

reindexInstrument

public org.apache.lucene.document.Document reindexInstrument(Instrument instrument)

reindexKeyword

public org.apache.lucene.document.Document reindexKeyword(Keyword keyword)

reindexPlaylist

public org.apache.lucene.document.Document reindexPlaylist(Playlist playlist)