Examples with DoubleDocValuesField org.apache.lucene.document.DoubleDocValuesField used on opensource projects

Example 21 with DoubleDocValuesField

use of org.apache.lucene.document.DoubleDocValuesField in project lucene-solr by apache.

the class TestSort method testDoubleReverse.

/** 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 = newSearcher(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"));
    ir.close();
    dir.close();
}

Example 22 with DoubleDocValuesField

use of org.apache.lucene.document.DoubleDocValuesField in project lucene-solr by apache.

the class TestSort method testDoubleSignedZero.

/** Tests sorting on type double with +/- zero */
public void testDoubleSignedZero() throws IOException {
    Directory dir = newDirectory();
    RandomIndexWriter writer = new RandomIndexWriter(random(), dir);
    Document doc = new Document();
    doc.add(new DoubleDocValuesField("value", +0D));
    doc.add(newStringField("value", "+0", Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    doc.add(new DoubleDocValuesField("value", -0D));
    doc.add(newStringField("value", "-0", Field.Store.YES));
    writer.addDocument(doc);
    doc = new Document();
    IndexReader ir = writer.getReader();
    writer.close();
    IndexSearcher searcher = newSearcher(ir);
    Sort sort = new Sort(new SortField("value", SortField.Type.DOUBLE));
    TopDocs td = searcher.search(new MatchAllDocsQuery(), 10, sort);
    assertEquals(2, td.totalHits);
    // numeric order
    assertEquals("-0", searcher.doc(td.scoreDocs[0].doc).get("value"));
    assertEquals("+0", searcher.doc(td.scoreDocs[1].doc).get("value"));
    ir.close();
    dir.close();
}

Example 23 with DoubleDocValuesField

use of org.apache.lucene.document.DoubleDocValuesField in project lucene-solr by apache.

the class TestIndexSorting method testMissingDoubleLast.

public void testMissingDoubleLast() throws Exception {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = new IndexWriterConfig(new MockAnalyzer(random()));
    SortField sortField = new SortField("foo", SortField.Type.DOUBLE);
    sortField.setMissingValue(Double.POSITIVE_INFINITY);
    Sort indexSort = new Sort(sortField);
    iwc.setIndexSort(indexSort);
    IndexWriter w = new IndexWriter(dir, iwc);
    Document doc = new Document();
    doc.add(new DoubleDocValuesField("foo", 18.0));
    w.addDocument(doc);
    // so we get more than one segment, so that forceMerge actually does merge, since we only get a sorted segment by merging:
    w.commit();
    // missing
    w.addDocument(new Document());
    w.commit();
    doc = new Document();
    doc.add(new DoubleDocValuesField("foo", 7.0));
    w.addDocument(doc);
    w.forceMerge(1);
    DirectoryReader r = DirectoryReader.open(w);
    LeafReader leaf = getOnlyLeafReader(r);
    assertEquals(3, leaf.maxDoc());
    NumericDocValues values = leaf.getNumericDocValues("foo");
    assertEquals(0, values.nextDoc());
    assertEquals(7.0, Double.longBitsToDouble(values.longValue()), 0.0);
    assertEquals(1, values.nextDoc());
    assertEquals(18.0, Double.longBitsToDouble(values.longValue()), 0.0);
    assertEquals(NO_MORE_DOCS, values.nextDoc());
    r.close();
    w.close();
    dir.close();
}

Example 24 with DoubleDocValuesField

use of org.apache.lucene.document.DoubleDocValuesField in project lucene-solr by apache.

the class TestIndexSorting method testBasicDouble.

public void testBasicDouble() throws Exception {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = new IndexWriterConfig(new MockAnalyzer(random()));
    Sort indexSort = new Sort(new SortField("foo", SortField.Type.DOUBLE));
    iwc.setIndexSort(indexSort);
    IndexWriter w = new IndexWriter(dir, iwc);
    Document doc = new Document();
    doc.add(new DoubleDocValuesField("foo", 18.0));
    w.addDocument(doc);
    // so we get more than one segment, so that forceMerge actually does merge, since we only get a sorted segment by merging:
    w.commit();
    doc = new Document();
    doc.add(new DoubleDocValuesField("foo", -1.0));
    w.addDocument(doc);
    w.commit();
    doc = new Document();
    doc.add(new DoubleDocValuesField("foo", 7.0));
    w.addDocument(doc);
    w.forceMerge(1);
    DirectoryReader r = DirectoryReader.open(w);
    LeafReader leaf = getOnlyLeafReader(r);
    assertEquals(3, leaf.maxDoc());
    NumericDocValues values = leaf.getNumericDocValues("foo");
    assertEquals(0, values.nextDoc());
    assertEquals(-1.0, Double.longBitsToDouble(values.longValue()), 0.0);
    assertEquals(1, values.nextDoc());
    assertEquals(7.0, Double.longBitsToDouble(values.longValue()), 0.0);
    assertEquals(2, values.nextDoc());
    assertEquals(18.0, Double.longBitsToDouble(values.longValue()), 0.0);
    r.close();
    w.close();
    dir.close();
}