Reputation: 709
I am new in lucene.net , in some searches that i had , i found that i can use lucene in my project ,
now i can not fix the bugs in my code .
Let me I explain in Code
First of all i create indexes like these
var strIndexDir = path;
Directory indexDir = FSDirectory.Open(new DirectoryInfo(strIndexDir));
Analyzer std = new StandardAnalyzer(global::Lucene.Net.Util.Version.LUCENE_30)
foreach (var res in resturant)
{
var doc = new Document();
restaurantName = new Field("Name",
res.Name, Field.Store.YES,
Field.Index.ANALYZED, Field.TermVector.YES);
var restaurantId = new Field("Id",
res.RestaurantId.ToString(), Field.Store.YES,
Field.Index.NO, Field.TermVector.NO);
var restaurantSlug = new Field("Slug",
res.Slug, Field.Store.YES,
Field.Index.NO, Field.TermVector.NO);
var restaurantAddress = new Field("Address",
res.Address ?? "empty", Field.Store.YES,
Field.Index.NOT_ANALYZED, Field.TermVector.YES);
var resturantType = new Field("Type",
"restaurant", Field.Store.YES,
Field.Index.NO, Field.TermVector.NO);
doc.Add(restaurantName);
doc.Add(restaurantId);
doc.Add(restaurantSlug);
doc.Add(restaurantAddress);
doc.Add(resturantType);
idxw.AddDocument(doc);
}
idxw.Optimize();
idxw.Close();
I Think with my self the indexing is ok , becuase i want just find the restaurant name and addresses
also for search query i use this way
string strIndexDir = path;
Analyzer std = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);
var indexReader = IndexReader.Open(FSDirectory.Open(path), readOnly: true);
var parserName =
new Lucene.Net.QueryParsers.QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Name", std);
var parserAddress =
new Lucene.Net.QueryParsers.QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Address", std);
var parserSlug =
new Lucene.Net.QueryParsers.QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Slug", std);
var parserTitle =
new Lucene.Net.QueryParsers.QueryParser(Lucene.Net.Util.Version.LUCENE_30, "Title", std);
var searcher = new IndexSearcher(FSDirectory.Open(path));
using (var srchr = new IndexSearcher(IndexReader.Open(directory,true)))
{
var qryName = parserName.Parse(q);
var qryAddress = parserAddress.Parse(q);
var qrySlug = parserSlug.Parse(q);
var qrytitle = parserTitle.Parse(q);
var cllctr = TopScoreDocCollector.Create(10, true);
searcher.Search(qryName, cllctr);
searcher.Search(qryAddress, cllctr);
searcher.Search(qrySlug, cllctr);
searcher.Search(qrytitle, cllctr);
var hits = cllctr.TopDocs().ScoreDocs;
Now let me say where is the problem .
for example i search this key word (q="box") want to find the restaurant name that name is boxshaharkgharb and want use "box"
the problem is that hot is always 0 but when i type boxshaharkgharb for example (q="boxshaharkgharb") the the result is ok .
how can handel that
Upvotes: 1
Views: 489
Reputation: 8540
By using wildcard *
you can force Lucene to search by fragment.
If you need to do this for all queries - you need to review your choice - as Lucene best performs using whole term searches. Reason for that is that by default wildcards turn into constant score queries, while term search uses relevancy to rank results.
Upvotes: 1