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From "Ard Schrijvers" <a.schrijv...@hippo.nl>
Subject RE: Should the IndexSearcher be closed after very search completed
Date Mon, 09 Jul 2007 08:18:35 GMT
Closing the IndexSearcher is best only after a deleteDocuments with a reader or changes with
a writer.

For performance reasons, it is better to not close the IndexSearcher if not needed

Regarsd Ard 

> 
> 
> sorry, the subject should be "Should the IndexSearcher be 
> closed after 
> every search completed"
> ~~~~~
> >Hi,
> >
> >Should the IndexSearcher instance be closed after very 
> search completed.
> >
> >I wrote a sample, but I have not closed the singleton instatnce of 
> >IndexSearcher unless IndexReader#isCurrent() return false.
> >
> >Now the sample runs well, but I saw almost other samples 
> would close the  
> >IndexSearcher instance on the end of very search.
> >
> >Should I do it like them?
> >
> >By the way, I use the constructor IndexSearcher(Directory 
> directory), so  
> >should I call the method IndexSearcher.close()?
> >
> >
> >------------------------------------
> >the Code sample:
> >------------------------------------
> >public IndexSearcher getIndexSearcher() throws IOException {
> >		
> >	if (this.indexSearcher == null) {
> >		return new IndexSearcher(getIndexDirectory());
> >	} else {
> >		IndexReader ir = indexSearcher.getIndexReader();
> >		if(!ir.isCurrent()){
> >			this.indexSearcher.close();
> >			this.indexSearcher=new IndexSearcher
> >(getIndexDirectory());
> >			ir=indexSearcher.getIndexReader();
> >			if(ir.hasDeletions()){
> >				if (this.indexWriter != null) {
> >					this.indexWriter.optimize();
> >				}	
> >			}
> >		}
> >		return this.indexSearcher;
> >	}
> >}
> >
> >
> >Best regards
> >Anson
> >
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> >
> 
> 
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