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

Example 36 with IndexReader

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

the class DatabaseIndexAccessorTest method shouldStopSamplingWhenIndexIsDropped.

@Test
public void shouldStopSamplingWhenIndexIsDropped() throws Exception {
    // given
    updateAndCommit(asList(add(nodeId, value), add(nodeId2, value2)));
    // when
    // needs to be acquired before drop() is called
    IndexReader indexReader = accessor.newReader();
    IndexSampler indexSampler = indexReader.createSampler();
    Future<Void> drop = threading.executeAndAwait((IOFunction<Void, Void>) nothing -> {
        accessor.drop();
        return nothing;
    }, null, waitingWhileIn(TaskCoordinator.class, "awaitCompletion"), 3, SECONDS);
    try (IndexReader reader = indexReader) /* do not inline! */
    {
        indexSampler.sampleIndex();
        fail("expected exception");
    } catch (IndexNotFoundKernelException e) {
        assertEquals("Index dropped while sampling.", e.getMessage());
    } finally {
        drop.get();
    }
}

Example 37 with IndexReader

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

the class DatabaseIndexAccessorTest method indexReaderShouldHonorRepeatableReads.

@Test
public void indexReaderShouldHonorRepeatableReads() throws Exception {
    // GIVEN
    updateAndCommit(asList(add(nodeId, value)));
    IndexReader reader = accessor.newReader();
    // WHEN
    updateAndCommit(asList(remove(nodeId, value)));
    // THEN
    assertEquals(asSet(nodeId), PrimitiveLongCollections.toSet(reader.query(exact(PROP_ID, value))));
    reader.close();
}

Example 38 with IndexReader

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

the class SimpleIndexReaderTest method stringRangeSeekQueryReachSearcher.

@Test
public void stringRangeSeekQueryReachSearcher() throws Exception {
    IndexReader simpleIndexReader = getUniqueSimpleReader();
    simpleIndexReader.query(range(1, "a", false, "b", true));
    verify(indexSearcher).search(any(TermQuery.class), any(DocValuesCollector.class));
}

Example 39 with IndexReader

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

the class SimpleIndexReaderTest method numberRangeSeekQueryReachSearcher.

@Test
public void numberRangeSeekQueryReachSearcher() throws Exception {
    IndexReader simpleIndexReader = getUniqueSimpleReader();
    simpleIndexReader.query(range(1, 7, true, 8, true));
    verify(indexSearcher).search(any(NumericRangeQuery.class), any(DocValuesCollector.class));
}

Example 40 with IndexReader

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

the class SimpleIndexReaderTest method releaseSearcherOnClose.

@Test
public void releaseSearcherOnClose() throws IOException {
    IndexReader simpleIndexReader = getUniqueSimpleReader();
    simpleIndexReader.close();
    verify(partitionSearcher).close();
}