Example usage for org.apache.lucene.search SortedSetSortField SortedSetSortField

Introduction

In this page you can find the example usage for org.apache.lucene.search SortedSetSortField SortedSetSortField.

Prototype

public SortedSetSortField(String field, boolean reverse) 

Source Link

Document

Creates a sort, possibly in reverse, by the minimum value in the set for the document.

Usage

From source file:org.elasticsearch.index.IndexSortIT.java

License:Apache License

public void testIndexSort() {
    SortField dateSort = new SortedNumericSortField("date", SortField.Type.LONG, false);
    dateSort.setMissingValue(Long.MAX_VALUE);
    SortField numericSort = new SortedNumericSortField("numeric_dv", SortField.Type.LONG, false);
    numericSort.setMissingValue(Long.MAX_VALUE);
    SortField keywordSort = new SortedSetSortField("keyword_dv", false);
    keywordSort.setMissingValue(SortField.STRING_LAST);
    Sort indexSort = new Sort(dateSort, numericSort, keywordSort);
    prepareCreate("test")
            .setSettings(Settings.builder().put(indexSettings()).put("index.number_of_shards", "1")
                    .put("index.number_of_replicas", "1")
                    .putList("index.sort.field", "date", "numeric_dv", "keyword_dv"))
            .addMapping("test", TEST_MAPPING).get();
    for (int i = 0; i < 20; i++) {
        client().prepareIndex("test", "test", Integer.toString(i))
                .setSource("numeric_dv", randomInt(), "keyword_dv", randomAlphaOfLengthBetween(10, 20)).get();
    }//from   ww w .  j  ava2 s. c  o m
    flushAndRefresh();
    ensureYellow();
    assertSortedSegments("test", indexSort);
}

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From source file:org.elasticsearch.search.searchafter.SearchAfterBuilderTests.java

License:Apache License

public void testExtractSortType() throws Exception {
    SortField.Type type = extractSortType(LatLonDocValuesField.newDistanceSort("field", 0.0, 180.0));
    assertThat(type, equalTo(SortField.Type.DOUBLE));
    IndexFieldData.XFieldComparatorSource source = new IndexFieldData.XFieldComparatorSource(null,
            MultiValueMode.MIN, null) {//from   w w w.j a  v a 2  s.co  m
        @Override
        public SortField.Type reducedType() {
            return SortField.Type.STRING;
        }

        @Override
        public FieldComparator<?> newComparator(String fieldname, int numHits, int sortPos, boolean reversed) {
            return null;
        }
    };

    type = extractSortType(new SortField("field", source));
    assertThat(type, equalTo(SortField.Type.STRING));

    type = extractSortType(new SortedNumericSortField("field", SortField.Type.DOUBLE));
    assertThat(type, equalTo(SortField.Type.DOUBLE));

    type = extractSortType(new SortedSetSortField("field", false));
    assertThat(type, equalTo(SortField.Type.STRING));
}

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From source file:org.neo4j.index.impl.lucene.legacy.TestLuceneIndex.java

License:Open Source License

@Test
public void queryIndexWithSortByString() throws Exception {
    Index<Node> index = nodeIndex(stringMap());
    String stringProperty = "NODE_NAME";

    String[] names = new String[] { "Fry", "Leela", "Bender", "Amy", "Hubert", "Calculon" };
    try (Transaction transaction = graphDb.beginTx()) {
        for (String name : names) {
            Node node = graphDb.createNode();
            node.setProperty(stringProperty, name);
            index.add(node, stringProperty, name);
        }/*from   w w  w. j a  v a 2  s  . c om*/
        transaction.success();
    }

    try (Transaction transaction = graphDb.beginTx()) {
        QueryContext queryContext = new QueryContext(stringProperty + ":**");
        queryContext.sort(new Sort(new SortedSetSortField(stringProperty, true)));
        IndexHits<Node> nodes = index.query(queryContext);

        int nameIndex = 0;
        String[] sortedNames = new String[] { "Leela", "Hubert", "Fry", "Calculon", "Bender", "Amy" };
        for (Node node : nodes) {
            assertEquals("Nodes should be sorted by string property", sortedNames[nameIndex++],
                    node.getProperty(stringProperty));
        }
        transaction.success();
    }
}

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