Querying the Lucene Index

Note: Imports removed for legibility.

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package com.ibm.ted.ebear.lucene; public final class QueryDemo1 { public static LogManager logger = new LogManager(QueryDemo1.class); private static BooleanQuery createBooleanQuery(Analyzer analyzer) throws ParseException { BooleanQuery booleanQuery = new BooleanQuery(); Query query1 = new QueryParser("content", analyzer).parse(String.format("(%s) AND (%s)", "alpha", "beta")); query1.setBoost(0.9f); booleanQuery.add(query1, Occur.SHOULD); Query query2 = new QueryParser("title", analyzer).parse(String.format("(%s) AND (%s)", "alpha", "beta")); query2.setBoost(1.1f); booleanQuery.add(query2, Occur.SHOULD); return booleanQuery; } public static void main(String... args) throws Throwable { Directory directory = FSDirectory.open(new File("/home/astoruser/lucene/01/")); IndexReader reader = DirectoryReader.open(directory); Analyzer analyzer = new StandardAnalyzer(); IndexSearcher searcher = new IndexSearcher(reader); TopScoreDocCollector collector = TopScoreDocCollector.create(10, true); BooleanQuery booleanQuery = createBooleanQuery(analyzer); searcher.search(booleanQuery, collector); ScoreDoc[] hits = collector.topDocs().scoreDocs; for (ScoreDoc hit : hits) { Document doc = searcher.doc(hit.doc); logger.debug("Result (score = %s, filename = %s)", hit.score, doc.get("filename")); } } }