1 package org.apache.lucene.search.spans;
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20 import org.apache.lucene.analysis.Analyzer;
21 import org.apache.lucene.analysis.StopAnalyzer;
22 import org.apache.lucene.document.Document;
23 import org.apache.lucene.document.Field;
24 import org.apache.lucene.index.IndexReader;
25 import org.apache.lucene.index.RandomIndexWriter;
26 import org.apache.lucene.index.Term;
27 import org.apache.lucene.search.IndexSearcher;
28 import org.apache.lucene.store.Directory;
29 import org.apache.lucene.util.LuceneTestCase;
31 public class TestSpanFirstQuery extends LuceneTestCase {
32 public void testStartPositions() throws Exception {
33 Directory dir = newDirectory();
36 Analyzer analyzer = new StopAnalyzer(TEST_VERSION_CURRENT);
38 RandomIndexWriter writer = new RandomIndexWriter(random, dir, analyzer);
39 Document doc = new Document();
40 doc.add(newField("field", "the quick brown fox", Field.Index.ANALYZED));
41 writer.addDocument(doc);
42 Document doc2 = new Document();
43 doc2.add(newField("field", "quick brown fox", Field.Index.ANALYZED));
44 writer.addDocument(doc2);
46 IndexReader reader = writer.getReader();
47 IndexSearcher searcher = newSearcher(reader);
49 // user queries on "starts-with quick"
50 SpanQuery sfq = new SpanFirstQuery(new SpanTermQuery(new Term("field", "quick")), 1);
51 assertEquals(1, searcher.search(sfq, 10).totalHits);
53 // user queries on "starts-with the quick"
54 SpanQuery include = new SpanFirstQuery(new SpanTermQuery(new Term("field", "quick")), 2);
55 sfq = new SpanNotQuery(include, sfq);
56 assertEquals(1, searcher.search(sfq, 10).totalHits);