package org.apache.lucene;
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import junit.framework.TestCase;
import org.apache.lucene.store.RAMDirectory;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.analysis.WhitespaceAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.Hit;
import org.apache.lucene.search.HitIterator;
import java.util.NoSuchElementException;
/**
* This test intentionally not put in the search package in order
* to test HitIterator and Hit package protection.
*/
public class TestHitIterator extends TestCase {
public void testIterator() throws Exception {
RAMDirectory directory = new RAMDirectory();
IndexWriter writer = new IndexWriter(directory, new WhitespaceAnalyzer(), true);
Document doc = new Document();
doc.add(new Field("field", "iterator test doc 1", Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc);
doc = new Document();
doc.add(new Field("field", "iterator test doc 2", Field.Store.YES, Field.Index.TOKENIZED));
writer.addDocument(doc);
writer.close();
IndexSearcher searcher = new IndexSearcher(directory);
Hits hits = searcher.search(new TermQuery(new Term("field", "iterator")));
HitIterator iterator = (HitIterator) hits.iterator();
assertEquals(2, iterator.length());
assertTrue(iterator.hasNext());
Hit hit = (Hit) iterator.next();
assertEquals("iterator test doc 1", hit.get("field"));
assertTrue(iterator.hasNext());
hit = (Hit) iterator.next();
assertEquals("iterator test doc 2", hit.getDocument().get("field"));
assertFalse(iterator.hasNext());
boolean caughtException = false;
try {
iterator.next();
} catch (NoSuchElementException e) {
assertTrue(true);
caughtException = true;
}
assertTrue(caughtException);
}
}