Re: Searcher not aware of index changes

[lucene]

On Wednesday 21 April 2004 19:20, Stephane James Vaucher wrote:
> This is not normal behaviour. Normally using a new IndexSearcher should
> reflect the modified state of your index. Could you post a more
> informative bit of code?

BTW Why can't Lucene care for it itself?


Well, according to my logging it does create a new instance. I use only one 
instance of SessoinFacade:

public class SearchFacade extends Observable
{
        protected class IndexObserver implements Observer
        {
                private final Log log = LogFactory.getLog(getClass());
                
                public Searcher indexSearcher;

                public IndexObserver()
                {
                        newSearcher();  // init
                }
                
                public void update(Observable o, Object arg)
                {
                        log.debug("Index has changed, creating new Searcher" );
                        newSearcher();
                }
                
                private void newSearcher()
                {
                        try
                        {
                                indexSearcher = new 
IndexSearcher(IndexReader.open(Configuration.LuceneIndex.MAIN));
                        }
                        catch (IOException e)
                        {
                                log.error("Could not instantiate searcher: " + e);
                        }
                }

                public Searcher getIndexSearcher()
                {
                        return indexSearcher;
                }
        }

        private IndexObserver indexObserver;
        
        public SearchFacade()
        {
                addObserver(indexObserver = new IndexObserver());
        }

        public void createIndex()
        {
                ...
                setChanged();           // index has changed
                notifyObservers();
        }
        
        public Hits search(String query)
        {
                Searcher searcher = indexObserver.getIndexSearcher();
        }

}

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]