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

Example 16 with IndexReader

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

the class SimpleIndexReaderTest method scanQueryReachSearcher.

@Test
public void scanQueryReachSearcher() throws Exception {
    IndexReader simpleIndexReader = getUniqueSimpleReader();
    simpleIndexReader.query(IndexQuery.exists(1));
    verify(indexSearcher).search(any(MatchAllDocsQuery.class), any(DocValuesCollector.class));
}

Example 17 with IndexReader

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

the class UniqueDatabaseIndexPopulatorTest method addUpdates.

@Test
public void addUpdates() throws Exception {
    populator = newPopulator();
    List<IndexEntryUpdate> updates = Arrays.asList(IndexEntryUpdate.add(1, descriptor.schema(), "aaa"), IndexEntryUpdate.add(2, descriptor.schema(), "bbb"), IndexEntryUpdate.add(3, descriptor.schema(), "ccc"));
    populator.add(updates);
    index.maybeRefreshBlocking();
    try (IndexReader reader = index.getIndexReader()) {
        PrimitiveLongIterator allEntities = reader.query(IndexQuery.exists(1));
        assertArrayEquals(new long[] { 1, 2, 3 }, PrimitiveLongCollections.asArray(allEntities));
    }
}

Example 18 with IndexReader

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

the class LuceneSchemaIndexPopulationIT method partitionedIndexPopulation.

@Test
public void partitionedIndexPopulation() throws Exception {
    try (SchemaIndex uniqueIndex = LuceneSchemaIndexBuilder.create(descriptor).withFileSystem(fileSystemRule.get()).withIndexRootFolder(testDir.directory("partitionIndex" + affectedNodes)).withIndexIdentifier("uniqueIndex" + affectedNodes).build()) {
        uniqueIndex.open();
        // index is empty and not yet exist
        assertEquals(0, uniqueIndex.allDocumentsReader().maxCount());
        assertFalse(uniqueIndex.exists());
        try (LuceneIndexAccessor indexAccessor = new LuceneIndexAccessor(uniqueIndex, descriptor)) {
            generateUpdates(indexAccessor, affectedNodes);
            indexAccessor.force();
            // now index is online and should contain updates data
            assertTrue(uniqueIndex.isOnline());
            try (IndexReader indexReader = indexAccessor.newReader()) {
                long[] nodes = PrimitiveLongCollections.asArray(indexReader.query(IndexQuery.exists(1)));
                assertEquals(affectedNodes, nodes.length);
                IndexSampler indexSampler = indexReader.createSampler();
                IndexSample sample = indexSampler.sampleIndex();
                assertEquals(affectedNodes, sample.indexSize());
                assertEquals(affectedNodes, sample.uniqueValues());
                assertEquals(affectedNodes, sample.sampleSize());
            }
        }
    }
}

Example 19 with IndexReader

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

the class DatabaseCompositeIndexAccessorTest method indexReaderShouldSupportScan.

@Test
public void indexReaderShouldSupportScan() throws Exception {
    // GIVEN
    updateAndCommit(asList(add(nodeId, values), add(nodeId2, values2)));
    IndexReader reader = accessor.newReader();
    // WHEN
    PrimitiveLongIterator results = reader.query(IndexQuery.exists(PROP_ID1), IndexQuery.exists(PROP_ID2));
    // THEN
    assertEquals(asSet(nodeId, nodeId2), PrimitiveLongCollections.toSet(results));
    assertEquals(asSet(nodeId), PrimitiveLongCollections.toSet(reader.query(IndexQuery.exact(PROP_ID1, values[0]), IndexQuery.exact(PROP_ID2, values[1]))));
    reader.close();
}

Example 20 with IndexReader

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

the class DatabaseCompositeIndexAccessorTest method canRemoveExistingData.

@Test
public void canRemoveExistingData() throws Exception {
    // GIVEN
    updateAndCommit(asList(add(nodeId, values), add(nodeId2, values2)));
    // WHEN
    updateAndCommit(asList(remove(nodeId, values)));
    IndexReader reader = accessor.newReader();
    // THEN
    assertEquals(asSet(nodeId2), PrimitiveLongCollections.toSet(reader.query(IndexQuery.exact(PROP_ID1, values2[0]), IndexQuery.exact(PROP_ID2, values2[1]))));
    assertEquals(asSet(), PrimitiveLongCollections.toSet(reader.query(IndexQuery.exact(PROP_ID1, values[0]), IndexQuery.exact(PROP_ID2, values[1]))));
    reader.close();
}