Examples with Sort org.apache.lucene.search.Sort used on opensource projects

Example 71 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testStringMissingSortedLast.

/** Tests sorting on type string with a missing
   *  value sorted last */
private void testStringMissingSortedLast(SortField.Type sortType) throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    writer.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("value", "foo", Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("value", "bar", Field.Store.YES));
    writer.addDocument(doc);
    Type type = sortType == SortField.Type.STRING ? Type.SORTED : Type.BINARY;
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", type));
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    SortField sf = new SortField("value", sortType);
    sf.setMissingValue(SortField.STRING_LAST);
    Sort sort = new Sort(sf);
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(3, td.totalHits);
    assertEquals("bar", searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("foo", searcher.doc(td.scoreDocs[1].doc).get("value"));
    // null comes last
    assertNull(searcher.doc(td.scoreDocs[2].doc).get("value"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 72 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testStringMissingSortedLastReverse.

/** Tests reverse sorting on type string with a missing
   *  value sorted last */
private void testStringMissingSortedLastReverse(SortField.Type sortType) throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    writer.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("value", "foo", Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("value", "bar", Field.Store.YES));
    writer.addDocument(doc);
    Type type = sortType == SortField.Type.STRING ? Type.SORTED : Type.BINARY;
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", type));
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    SortField sf = new SortField("value", sortType, true);
    sf.setMissingValue(SortField.STRING_LAST);
    Sort sort = new Sort(sf);
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(3, td.totalHits);
    // null comes first
    assertNull(searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("foo", searcher.doc(td.scoreDocs[1].doc).get("value"));
    assertEquals("bar", searcher.doc(td.scoreDocs[2].doc).get("value"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 73 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testStringReverse.

/** Tests reverse sorting on type string */
private void testStringReverse(SortField.Type sortType) throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(newStringField("value", "bar", Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(newStringField("value", "foo", Field.Store.YES));
    writer.addDocument(doc);
    Type type = sortType == SortField.Type.STRING ? Type.SORTED : Type.BINARY;
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", type));
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    Sort sort = new Sort(new SortField("value", sortType, 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"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 74 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testLongMissingLast.

/** Tests sorting on type long, specifying the missing value should be treated as Long.MAX_VALUE */
public void testLongMissingLast() throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LongPoint("value", -1));
    doc.add(new StoredField("value", -1));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LongPoint("value", 4));
    doc.add(new StoredField("value", 4));
    writer.addDocument(doc);
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", Type.LONG_POINT));
    writer.close();
    IndexSearcher searcher = newSearcher(ir, false);
    SortField sortField = new SortField("value", SortField.Type.LONG);
    sortField.setMissingValue(Long.MAX_VALUE);
    Sort sort = new Sort(sortField);
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(3, td.totalHits);
    // null is treated as Long.MAX_VALUE
    assertEquals("-1", searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("4", searcher.doc(td.scoreDocs[1].doc).get("value"));
    assertNull(searcher.doc(td.scoreDocs[2].doc).get("value"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}

Example 75 with Sort

use of org.apache.lucene.search.Sort in project lucene-solr by apache.

the class TestFieldCacheSort method testLegacyLong.

/** Tests sorting on type legacy long */
public void testLegacyLong() throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(new LegacyLongField("value", 3000000000L, Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyLongField("value", -1, Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new LegacyLongField("value", 4, Field.Store.YES));
    writer.addDocument(doc);
    IndexReader ir = UninvertingReader.wrap(writer.getReader(), Collections.singletonMap("value", Type.LEGACY_LONG));
    writer.close();
    IndexSearcher searcher = newSearcher(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"));
    TestUtil.checkReader(ir);
    ir.close();
    dir.close();
}