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

Example 31 with IndexReader

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

the class DatabaseCompositeIndexAccessorTest method multipleIndexReadersFromDifferentPointsInTimeCanSeeDifferentResults.

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

Example 32 with IndexReader

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

the class DatabaseIndexAccessorTest method multipleIndexReadersFromDifferentPointsInTimeCanSeeDifferentResults.

@Test
public void multipleIndexReadersFromDifferentPointsInTimeCanSeeDifferentResults() throws Exception {
    // WHEN
    updateAndCommit(asList(add(nodeId, value)));
    IndexReader firstReader = accessor.newReader();
    updateAndCommit(asList(add(nodeId2, value2)));
    IndexReader secondReader = accessor.newReader();
    // THEN
    assertEquals(asSet(nodeId), PrimitiveLongCollections.toSet(firstReader.query(exact(PROP_ID, value))));
    assertEquals(asSet(), PrimitiveLongCollections.toSet(firstReader.query(exact(PROP_ID, value2))));
    assertEquals(asSet(nodeId), PrimitiveLongCollections.toSet(secondReader.query(exact(PROP_ID, value))));
    assertEquals(asSet(nodeId2), PrimitiveLongCollections.toSet(secondReader.query(exact(PROP_ID, value2))));
    firstReader.close();
    secondReader.close();
}

Example 33 with IndexReader

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

the class DatabaseIndexAccessorTest method indexReaderShouldSupportScan.

@Test
public void indexReaderShouldSupportScan() throws Exception {
    // GIVEN
    updateAndCommit(asList(add(nodeId, value), add(nodeId2, value2)));
    IndexReader reader = accessor.newReader();
    // WHEN
    PrimitiveLongIterator results = reader.query(IndexQuery.exists(PROP_ID));
    // THEN
    assertEquals(asSet(nodeId, nodeId2), PrimitiveLongCollections.toSet(results));
    assertEquals(asSet(nodeId), PrimitiveLongCollections.toSet(reader.query(IndexQuery.exact(PROP_ID, value))));
    reader.close();
}

Example 34 with IndexReader

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

the class DatabaseIndexAccessorTest method indexStringRangeQuery.

@Test
public void indexStringRangeQuery() throws Exception {
    updateAndCommit(asList(add(PROP_ID, "A"), add(2, "B"), add(3, "C"), add(4, "")));
    IndexReader reader = accessor.newReader();
    PrimitiveLongIterator rangeFromBInclusive = reader.query(range(PROP_ID, "B", true, null, false));
    assertThat(PrimitiveLongCollections.asArray(rangeFromBInclusive), LongArrayMatcher.of(2, 3));
    PrimitiveLongIterator rangeFromANonInclusive = reader.query(range(PROP_ID, "A", false, null, false));
    assertThat(PrimitiveLongCollections.asArray(rangeFromANonInclusive), LongArrayMatcher.of(2, 3));
    PrimitiveLongIterator emptyLowInclusive = reader.query(range(PROP_ID, "", true, null, false));
    assertThat(PrimitiveLongCollections.asArray(emptyLowInclusive), LongArrayMatcher.of(PROP_ID, 2, 3, 4));
    PrimitiveLongIterator emptyUpperNonInclusive = reader.query(range(PROP_ID, "B", true, "", false));
    assertThat(PrimitiveLongCollections.asArray(emptyUpperNonInclusive), LongArrayMatcher.emptyArrayMatcher());
    PrimitiveLongIterator emptyInterval = reader.query(range(PROP_ID, "", true, "", true));
    assertThat(PrimitiveLongCollections.asArray(emptyInterval), LongArrayMatcher.of(4));
    PrimitiveLongIterator emptyAllNonInclusive = reader.query(range(PROP_ID, "", false, null, false));
    assertThat(PrimitiveLongCollections.asArray(emptyAllNonInclusive), LongArrayMatcher.of(PROP_ID, 2, 3));
    PrimitiveLongIterator nullNonInclusive = reader.query(range(PROP_ID, (String) null, false, null, false));
    assertThat(PrimitiveLongCollections.asArray(nullNonInclusive), LongArrayMatcher.of(PROP_ID, 2, 3, 4));
    PrimitiveLongIterator nullInclusive = reader.query(range(PROP_ID, (String) null, false, null, false));
    assertThat(PrimitiveLongCollections.asArray(nullInclusive), LongArrayMatcher.of(PROP_ID, 2, 3, 4));
}

Example 35 with IndexReader

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

the class DatabaseIndexAccessorTest method canAddNewData.

@Test
public void canAddNewData() throws Exception {
    // WHEN
    updateAndCommit(asList(add(nodeId, value), add(nodeId2, value2)));
    IndexReader reader = accessor.newReader();
    // THEN
    assertEquals(asSet(nodeId), PrimitiveLongCollections.toSet(reader.query(exact(PROP_ID, value))));
    reader.close();
}