package org.apache.lucene.search;
/*
* 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 java.io.IOException;
import org.apache.lucene.document.BinaryDocValuesField;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.DoubleDocValuesField;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FloatDocValuesField;
import org.apache.lucene.document.NumericDocValuesField;
import org.apache.lucene.document.SortedDocValuesField;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.RandomIndexWriter;
import org.apache.lucene.store.Directory;
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.LuceneTestCase;
import org.apache.lucene.util.LuceneTestCase.SuppressCodecs;
/** Tests basic sorting on docvalues fields.
* These are mostly like TestSort's tests, except each test
* indexes the field up-front as docvalues, and checks no fieldcaches were made */
@SuppressCodecs("Lucene3x")
public class TestSortDocValues extends LuceneTestCase {
@Override
public void setUp() throws Exception {
super.setUp();
// ensure there is nothing in fieldcache before test starts
FieldCache.DEFAULT.purgeAllCaches();
}
private void assertNoFieldCaches() {
// docvalues sorting should NOT create any fieldcache entries!
assertEquals(0, FieldCache.DEFAULT.getCacheEntries().length);
}
/** Tests sorting on type string */
public void testString() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("foo")));
doc.add(newStringField("value", "foo", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("bar")));
doc.add(newStringField("value", "bar", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.STRING));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(2, td.totalHits);
// 'bar' comes before 'foo'
assertEquals("bar", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("foo", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests reverse sorting on type string */
public void testStringReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("bar")));
doc.add(newStringField("value", "bar", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("foo")));
doc.add(newStringField("value", "foo", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.STRING, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(2, td.totalHits);
// 'foo' comes after 'bar' in reverse order
assertEquals("foo", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("bar", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type string_val */
public void testStringVal() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new BinaryDocValuesField("value", new BytesRef("foo")));
doc.add(newStringField("value", "foo", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new BinaryDocValuesField("value", new BytesRef("bar")));
doc.add(newStringField("value", "bar", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.STRING_VAL));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(2, td.totalHits);
// 'bar' comes before 'foo'
assertEquals("bar", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("foo", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests reverse sorting on type string_val */
public void testStringValReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new BinaryDocValuesField("value", new BytesRef("bar")));
doc.add(newStringField("value", "bar", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new BinaryDocValuesField("value", new BytesRef("foo")));
doc.add(newStringField("value", "foo", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.STRING_VAL, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(2, td.totalHits);
// 'foo' comes after 'bar' in reverse order
assertEquals("foo", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("bar", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type string_val, but with a SortedDocValuesField */
public void testStringValSorted() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("foo")));
doc.add(newStringField("value", "foo", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("bar")));
doc.add(newStringField("value", "bar", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.STRING_VAL));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(2, td.totalHits);
// 'bar' comes before 'foo'
assertEquals("bar", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("foo", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests reverse sorting on type string_val, but with a SortedDocValuesField */
public void testStringValReverseSorted() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("bar")));
doc.add(newStringField("value", "bar", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new SortedDocValuesField("value", new BytesRef("foo")));
doc.add(newStringField("value", "foo", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.STRING_VAL, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(2, td.totalHits);
// 'foo' comes after 'bar' in reverse order
assertEquals("foo", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("bar", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type byte */
public void testByte() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 23));
doc.add(newStringField("value", "23", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.BYTE));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// numeric order
assertEquals("-1", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("23", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type byte in reverse */
public void testByteReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 23));
doc.add(newStringField("value", "23", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.BYTE, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// reverse numeric order
assertEquals("23", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("-1", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type short */
public void testShort() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 300));
doc.add(newStringField("value", "300", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.SHORT));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// numeric order
assertEquals("-1", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("300", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type short in reverse */
public void testShortReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 300));
doc.add(newStringField("value", "300", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.SHORT, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// reverse numeric order
assertEquals("300", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("-1", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type int */
public void testInt() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 300000));
doc.add(newStringField("value", "300000", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.INT));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// numeric order
assertEquals("-1", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("300000", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type int in reverse */
public void testIntReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 300000));
doc.add(newStringField("value", "300000", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.INT, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// reverse numeric order
assertEquals("300000", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("-1", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type long */
public void testLong() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 3000000000L));
doc.add(newStringField("value", "3000000000", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.LONG));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// numeric order
assertEquals("-1", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("3000000000", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type long in reverse */
public void testLongReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new NumericDocValuesField("value", 3000000000L));
doc.add(newStringField("value", "3000000000", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", -1));
doc.add(newStringField("value", "-1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new NumericDocValuesField("value", 4));
doc.add(newStringField("value", "4", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.LONG, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// reverse numeric order
assertEquals("3000000000", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("-1", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type float */
public void testFloat() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new FloatDocValuesField("value", 30.1F));
doc.add(newStringField("value", "30.1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new FloatDocValuesField("value", -1.3F));
doc.add(newStringField("value", "-1.3", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new FloatDocValuesField("value", 4.2F));
doc.add(newStringField("value", "4.2", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.FLOAT));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// numeric order
assertEquals("-1.3", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4.2", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("30.1", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type float in reverse */
public void testFloatReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new FloatDocValuesField("value", 30.1F));
doc.add(newStringField("value", "30.1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new FloatDocValuesField("value", -1.3F));
doc.add(newStringField("value", "-1.3", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new FloatDocValuesField("value", 4.2F));
doc.add(newStringField("value", "4.2", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.FLOAT, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(3, td.totalHits);
// reverse numeric order
assertEquals("30.1", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4.2", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("-1.3", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type double */
public void testDouble() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new DoubleDocValuesField("value", 30.1));
doc.add(newStringField("value", "30.1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new DoubleDocValuesField("value", -1.3));
doc.add(newStringField("value", "-1.3", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new DoubleDocValuesField("value", 4.2333333333333));
doc.add(newStringField("value", "4.2333333333333", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new DoubleDocValuesField("value", 4.2333333333332));
doc.add(newStringField("value", "4.2333333333332", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.DOUBLE));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(4, td.totalHits);
// numeric order
assertEquals("-1.3", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4.2333333333332", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("4.2333333333333", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertEquals("30.1", searcher.doc(td.scoreDocs[3].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
/** Tests sorting on type double in reverse */
public void testDoubleReverse() throws IOException {
Directory dir = newDirectory();
RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
Document doc = new Document();
doc.add(new DoubleDocValuesField("value", 30.1));
doc.add(newStringField("value", "30.1", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new DoubleDocValuesField("value", -1.3));
doc.add(newStringField("value", "-1.3", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new DoubleDocValuesField("value", 4.2333333333333));
doc.add(newStringField("value", "4.2333333333333", Field.Store.YES));
writer.addDocument(doc);
doc = new Document();
doc.add(new DoubleDocValuesField("value", 4.2333333333332));
doc.add(newStringField("value", "4.2333333333332", Field.Store.YES));
writer.addDocument(doc);
IndexReader ir = writer.getReader();
writer.close();
IndexSearcher searcher = new IndexSearcher(ir);
Sort sort = new Sort(new SortField("value", SortField.Type.DOUBLE, true));
TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
assertEquals(4, td.totalHits);
// numeric order
assertEquals("30.1", searcher.doc(td.scoreDocs[0].doc).get("value"));
assertEquals("4.2333333333333", searcher.doc(td.scoreDocs[1].doc).get("value"));
assertEquals("4.2333333333332", searcher.doc(td.scoreDocs[2].doc).get("value"));
assertEquals("-1.3", searcher.doc(td.scoreDocs[3].doc).get("value"));
assertNoFieldCaches();
ir.close();
dir.close();
}
}