Example usage for org.apache.lucene.search FieldComparator compareValues

Introduction

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

Prototype

@SuppressWarnings("unchecked")
public int compareValues(T first, T second) 

Source Link

Document

Returns a negative integer if first is less than second, 0 if they are equal and a positive integer otherwise.

Usage

From source file:com.stratio.cassandra.lucene.service.TokenMapperGenericTest.java

License:Apache License

@Test
@SuppressWarnings("unchecked")
public void testSortFields() throws IOException {
    List<SortField> sortFields = mapper.sortFields();
    assertNotNull("Sort fields should be not null", sortFields);
    assertEquals("Sort fields should contain a single element", 1, sortFields.size());
    for (SortField sortField : sortFields) {
        FieldComparatorSource comparatorSource = sortField.getComparatorSource();
        assertNotNull("Sort field comparator should be not null", comparatorSource);
        FieldComparator fieldComparator = comparatorSource.newComparator(TokenMapperGeneric.FIELD_NAME, 1, 0,
                true);/*  www. j  a  v a 2 s  .  c  o  m*/
        BytesRef value1 = mapper.bytesRef(token("k1"));
        BytesRef value2 = mapper.bytesRef(token("k2"));
        fieldComparator.compareValues(value1, value2);
    }
}

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From source file:org.apache.solr.handler.component.ShardFieldSortedHitQueue.java

License:Apache License

Comparator<ShardDoc> comparatorFieldComparator(SortField sortField) {
    final FieldComparator fieldComparator = sortField.getComparator(0, 0);
    return new ShardComparator(sortField) {
        // Since the PriorityQueue keeps the biggest elements by default,
        // we need to reverse the field compare ordering so that the
        // smallest elements are kept instead of the largest... hence
        // the negative sign.
        @Override//from  www .  ja v  a  2s .c  o  m
        public int compare(final ShardDoc o1, final ShardDoc o2) {
            //noinspection unchecked
            return -fieldComparator.compareValues(sortVal(o1), sortVal(o2));
        }
    };
}

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From source file:org.apache.solr.search.federated.ShardFieldSortedHitQueue.java

License:Apache License

@SuppressWarnings("rawtypes")
Comparator<ShardDoc> comparatorFieldComparator(SortField sortField) {
    final FieldComparator fieldComparator;
    try {/* ww w.  j  a va  2s  .  c om*/
        fieldComparator = sortField.getComparator(0, 0);
    } catch (IOException e) {
        throw new RuntimeException("Unable to get FieldComparator for sortField " + sortField);
    }

    return new ShardComparator(sortField) {
        // Since the PriorityQueue keeps the biggest elements by default,
        // we need to reverse the field compare ordering so that the
        // smallest elements are kept instead of the largest... hence
        // the negative sign.
        @Override
        @SuppressWarnings("unchecked")
        public int compare(final ShardDoc o1, final ShardDoc o2) {
            // noinspection unchecked
            return -fieldComparator.compareValues(sortVal(o1), sortVal(o2));
        }
    };
}

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