Thanks Erik, I was able to get a solution working for me using the classes you outlined below.
-----Original Message----- From: Erik Hatcher [mailto:[EMAIL PROTECTED] Sent: Wednesday, May 10, 2006 12:11 PM To: java-user@lucene.apache.org Subject: Re: wildcards in phrase searches On May 10, 2006, at 2:12 PM, [EMAIL PROTECTED] wrote: > Thanks for your reply. Is there any sample code that would demonstrate > how to use these classes properly to get the desired effect of what im > looking for? I am not able to access Lucene's svn at the moment, but here's my local copy of the TestSpanRegexQuery: public class TestSpanRegexQuery extends TestCase { public void testSpanRegex() throws Exception { RAMDirectory directory = new RAMDirectory(); IndexWriter writer = new IndexWriter(directory, new SimpleAnalyzer(), true); Document doc = new Document(); // doc.add(new Field("field", "the quick brown fox jumps over the lazy dog", Field.Store.NO, Field.Index.TOKENIZED)); // writer.addDocument(doc); // doc = new Document(); doc.add(new Field("field", "auto update", Field.Store.NO, Field.Index.TOKENIZED)); writer.addDocument(doc); doc = new Document(); doc.add(new Field("field", "first auto update", Field.Store.NO, Field.Index.TOKENIZED)); writer.addDocument(doc); writer.optimize(); writer.close(); IndexSearcher searcher = new IndexSearcher(directory); SpanRegexQuery srq = new SpanRegexQuery(new Term("field", "aut.*")); SpanFirstQuery sfq = new SpanFirstQuery(srq, 1); // SpanNearQuery query = new SpanNearQuery(new SpanQuery[] {srq, stq}, 6, true); Hits hits = searcher.search(sfq); assertEquals(1, hits.length()); } } This is not quite what you're after, but close. You'll use a SpanTermQuery's and SpanRegexQuery's mixed inside a SpanNearQuery. Try out some simple examples like this and see where you get, and post back if you have issues/questions. Erik > > Thanks > > -----Original Message----- > From: Erik Hatcher [mailto:[EMAIL PROTECTED] > Sent: Wednesday, May 10, 2006 11:00 AM > To: java-user@lucene.apache.org > Subject: Re: wildcards in phrase searches > > > On May 10, 2006, at 1:47 PM, [EMAIL PROTECTED] wrote: > >> Is it possible to have wildcards in a phrase search? For example, if >> my object is indexed with a phrase "benchmark properties", is there a >> way to specify a phrase search that uses wildcards, such as >> "benchmar* >> properties" >> or "benchmark pro*"? I have tried using WildcardQuery, but it doesnt >> seem to work with phrases, only single terms. Using the QueryParser >> doesnt seem to work either, and ive tried it with the >> StandardAnalyzer and KeywordAnalyzer. >> Perhaps there is something simple Im missing here. Has anyone gotten >> this to work? > > It's a fair bit trickier than using any of the stock core classes like > that. > But it can be done, using SpanNearQuery nested with SpanRegexQuery's > for the wildcarded parts in the contrib code (note, this uses regex > syntax, not WildcardQuery syntax), along with SpanTermQuery's for the > non- wildcarded parts. > > Erik > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
