Mattias, Thanks a lot. Please find my update in red.
Thanks and Regards, Samuel 2010/11/14 Mattias Persson <[email protected]> > 2010/11/13 Samuel Feng <[email protected]> > > > Hi, > > > > I am new to neo4j. > > > > I am using a custom analyzer in index in order to support Chinese. > > > > chnIndex = this.graphDb.index().forNodes("product_chinese", > > MapUtil.stringMap("analyzer", > > "org.wltea.analyzer.lucene.IKAnalyzer")); > > > > Below is the usage of the IKAnalyzer in lucence. > > > > IndexSearcher isearcher = new IndexSearcher(directory); > > isearcher.setSimilarity(new IKSimilarity()); // A custom > Similarity > > String word = "OLYMPUS 奥林巴斯 E-PL1 时尚白 微型4/3系统相机 套机 含14-42mm镜头"; > > Query query = IKQueryParser.parse(fieldName, word ); // A custom > > QueryParser > > TopDocs topDocs = isearcher.search(query, 5); // Got the top 5 > > System.out.println("Found " + topDocs.totalHits); > > ScoreDoc[] scoreDocs = topDocs.scoreDocs; > > for (int i = 0; i < topDocs.totalHits; i++) { > > System.out.println(scoreDocs[i].score); // Got the score of each > > matched doc > > Document targetDoc = isearcher.doc(scoreDocs[i].doc); > > System.out.println("Document content is " + targetDoc.toString()); > > } > > > > How can I use the query method of neo4j's indexing to implement > > 1) Add my custom Similartiy implemtation > > > > That would require new functionality, probably exposed as a configuration > parameter "similarity":"org.wltea.analyzer.lucene.IKAnalyzer" or something. > > Maybe QueryContext can also be used here? > > > 2) The TopDocs interface can replaced by the iterator of IndexHits, > right? > > > > In a way, yes. Actually IndexHits wraps a Hits instance (from lucene 2.x), > since it gives all the hits back. To make use of TopDocs instead a method > could be exposed via the QueryContext class. That's definately possible. > > > > 3) Possible to get the score for each node in the IndexHits? > > > > Would it be ok with an IndexHits#currentScore() method which could return > the score of the most recently returned node from the IndexHits object? > > That is a good idea. Please let me know the schedule of implement this, as my team is looking forward to this feature. :) > > > > > Thank you for the help and time spent on this. > > > > These are great ideas and I'd be happy to try and implement them. > > > > > > Samuel > > _______________________________________________ > > Neo4j mailing list > > [email protected] > > https://lists.neo4j.org/mailman/listinfo/user > > > > > > -- > Mattias Persson, [[email protected]] > Hacker, Neo Technology > www.neotechnology.com > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
