Examples with IndexSample org.neo4j.storageengine.api.schema.IndexSample used on opensource projects

Example 6 with IndexSample

use of org.neo4j.storageengine.api.schema.IndexSample in project neo4j by neo4j.

the class OnlineIndexSamplingJobTest method setup.

@Before
public void setup() throws IndexNotFoundKernelException {
    when(indexProxy.getDescriptor()).thenReturn(indexDescriptor);
    when(indexProxy.newReader()).thenReturn(indexReader);
    when(indexReader.createSampler()).thenReturn(indexSampler);
    when(indexSampler.sampleIndex()).thenReturn(new IndexSample(indexSize, indexUniqueValues, indexSize));
}

Example 7 with IndexSample

use of org.neo4j.storageengine.api.schema.IndexSample in project neo4j by neo4j.

the class PartitionedIndexReaderTest method samplingOverPartitions.

@Test
public void samplingOverPartitions() throws IndexNotFoundKernelException {
    PartitionedIndexReader indexReader = createPartitionedReaderFromReaders();
    when(indexReader1.createSampler()).thenReturn(new SimpleSampler(1));
    when(indexReader2.createSampler()).thenReturn(new SimpleSampler(2));
    when(indexReader3.createSampler()).thenReturn(new SimpleSampler(3));
    IndexSampler sampler = indexReader.createSampler();
    assertEquals(new IndexSample(6, 6, 6), sampler.sampleIndex());
}

Example 8 with IndexSample

use of org.neo4j.storageengine.api.schema.IndexSample in project neo4j by neo4j.

the class NonUniqueDatabaseIndexSamplerTest method nonUniqueIndexSampling.

@Test
public void nonUniqueIndexSampling() throws Exception {
    Terms aTerms = getTerms("a", 1);
    Terms idTerms = getTerms("id", 2);
    Terms bTerms = getTerms("b", 3);
    Map<String, Terms> fieldTermsMap = MapUtil.genericMap("0string", aTerms, "id", idTerms, "0array", bTerms);
    IndexReaderStub indexReader = new IndexReaderStub(new SamplingFields(fieldTermsMap));
    indexReader.setElements(new String[4]);
    when(indexSearcher.getIndexReader()).thenReturn(indexReader);
    assertEquals(new IndexSample(4, 2, 4), createSampler().sampleIndex());
}

Example 9 with IndexSample

use of org.neo4j.storageengine.api.schema.IndexSample in project neo4j by neo4j.

the class NonUniqueDatabaseIndexPopulatingUpdaterTest method verifySamplingResult.

private static void verifySamplingResult(NonUniqueIndexSampler sampler, long expectedIndexSize, long expectedUniqueValues, long expectedSampleSize) {
    IndexSample sample = sampler.result();
    assertEquals(expectedIndexSize, sample.indexSize());
    assertEquals(expectedUniqueValues, sample.uniqueValues());
    assertEquals(expectedSampleSize, sample.sampleSize());
}

Example 10 with IndexSample

use of org.neo4j.storageengine.api.schema.IndexSample in project neo4j by neo4j.

the class NonUniqueDatabaseIndexPopulatorTest method sampleIncludedUpdatesWithDuplicates.

@Test
public void sampleIncludedUpdatesWithDuplicates() throws Exception {
    populator = newPopulator();
    List<IndexEntryUpdate> updates = Arrays.asList(IndexEntryUpdate.add(1, labelSchemaDescriptor, "foo"), IndexEntryUpdate.add(2, labelSchemaDescriptor, "bar"), IndexEntryUpdate.add(3, labelSchemaDescriptor, "foo"));
    updates.forEach(populator::includeSample);
    IndexSample sample = populator.sampleResult();
    assertEquals(new IndexSample(3, 2, 3), sample);
}