aos.lucene.search.advanced.MultiFieldQueryParserTest.java Source code

Introduction

Here is the source code for aos.lucene.search.advanced.MultiFieldQueryParserTest.java

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package aos.lucene.search.advanced;

import junit.framework.TestCase;

import org.apache.lucene.analysis.SimpleAnalyzer;
import org.apache.lucene.queryParser.MultiFieldQueryParser;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.BooleanClause;
import org.apache.lucene.util.Version;
import org.apache.lucene.store.Directory;

import io.aos.lucene.util.TestUtil;

// From chapter 5
public class MultiFieldQueryParserTest extends TestCase {
    public void testDefaultOperator() throws Exception {
        Query query = new MultiFieldQueryParser(Version.LUCENE_46, new String[] { "title", "subject" },
                new SimpleAnalyzer()).parse("development");

        Directory dir = TestUtil.getBookIndexDirectory();
        IndexSearcher searcher = new IndexSearcher(dir, true);
        TopDocs hits = searcher.search(query, 10);

        assertTrue(TestUtil.hitsIncludeTitle(searcher, hits, "Ant in Action"));

        assertTrue(TestUtil.hitsIncludeTitle( //A
                searcher, //A
                hits, //A
                "Extreme Programming Explained")); //A
        searcher.close();
        dir.close();
    }

    public void testSpecifiedOperator() throws Exception {
        Query query = MultiFieldQueryParser.parse(Version.LUCENE_46, "lucene", new String[] { "title", "subject" },
                new BooleanClause.Occur[] { BooleanClause.Occur.MUST, BooleanClause.Occur.MUST },
                new SimpleAnalyzer());

        Directory dir = TestUtil.getBookIndexDirectory();
        IndexSearcher searcher = new IndexSearcher(dir, true);
        TopDocs hits = searcher.search(query, 10);

        assertTrue(TestUtil.hitsIncludeTitle(searcher, hits, "Lucene in Action, Second Edition"));
        assertEquals("one and only one", 1, hits.scoreDocs.length);
        searcher.close();
        dir.close();
    }

    /*
      #A Has development in the subject field
     */

}