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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