Examples with ResultCursor org.neo4j.driver.async.ResultCursor used on opensource projects

Example 6 with ResultCursor

use of org.neo4j.driver.async.ResultCursor in project neo4j-java-driver by neo4j.

the class AsyncTransactionIT method shouldFailSingleWithMultiRecordCursor.

@Test
void shouldFailSingleWithMultiRecordCursor() {
    AsyncTransaction tx = await(session.beginTransactionAsync());
    ResultCursor cursor = await(tx.runAsync("UNWIND ['a', 'b'] AS x RETURN x"));
    NoSuchRecordException e = assertThrows(NoSuchRecordException.class, () -> await(cursor.singleAsync()));
    assertThat(e.getMessage(), startsWith("Expected a result with a single record"));
}

Example 7 with ResultCursor

use of org.neo4j.driver.async.ResultCursor in project neo4j-java-driver by neo4j.

the class AsyncTransactionIT method shouldFailWhenListTransformationFunctionFails.

@Test
void shouldFailWhenListTransformationFunctionFails() {
    AsyncTransaction tx = await(session.beginTransactionAsync());
    ResultCursor cursor = await(tx.runAsync("RETURN 'Hello'"));
    IOException error = new IOException("World");
    Exception e = assertThrows(Exception.class, () -> await(cursor.listAsync(record -> {
        throw new CompletionException(error);
    })));
    assertEquals(error, e);
}

Example 8 with ResultCursor

use of org.neo4j.driver.async.ResultCursor in project neo4j-java-driver by neo4j.

the class AsyncTransactionIT method shouldExposeResultSummaryForSimpleQuery.

@Test
void shouldExposeResultSummaryForSimpleQuery() {
    String query = "CREATE (p1:Person {name: $name1})-[:KNOWS]->(p2:Person {name: $name2}) RETURN p1, p2";
    Value params = parameters("name1", "Bob", "name2", "John");
    AsyncTransaction tx = await(session.beginTransactionAsync());
    ResultCursor cursor = await(tx.runAsync(query, params));
    ResultSummary summary = await(cursor.consumeAsync());
    assertEquals(new Query(query, params), summary.query());
    assertEquals(2, summary.counters().nodesCreated());
    assertEquals(2, summary.counters().labelsAdded());
    assertEquals(2, summary.counters().propertiesSet());
    assertEquals(1, summary.counters().relationshipsCreated());
    assertEquals(QueryType.READ_WRITE, summary.queryType());
    assertFalse(summary.hasPlan());
    assertFalse(summary.hasProfile());
    assertNull(summary.plan());
    assertNull(summary.profile());
    assertEquals(0, summary.notifications().size());
    assertThat(summary, containsResultAvailableAfterAndResultConsumedAfter());
}

Example 9 with ResultCursor

use of org.neo4j.driver.async.ResultCursor in project neo4j-java-driver by neo4j.

the class AsyncTransactionIT method shouldExposeResultSummaryForProfileQuery.

@Test
void shouldExposeResultSummaryForProfileQuery() {
    String query = "PROFILE MERGE (n {name: $name}) " + "ON CREATE SET n.created = timestamp() " + "ON MATCH SET n.counter = coalesce(n.counter, 0) + 1";
    Value params = parameters("name", "Bob");
    AsyncTransaction tx = await(session.beginTransactionAsync());
    ResultCursor cursor = await(tx.runAsync(query, params));
    ResultSummary summary = await(cursor.consumeAsync());
    assertEquals(new Query(query, params), summary.query());
    assertEquals(1, summary.counters().nodesCreated());
    assertEquals(2, summary.counters().propertiesSet());
    assertEquals(0, summary.counters().relationshipsCreated());
    assertEquals(QueryType.WRITE_ONLY, summary.queryType());
    assertTrue(summary.hasPlan());
    assertTrue(summary.hasProfile());
    assertNotNull(summary.plan());
    assertNotNull(summary.profile());
    // asserting on profile is a bit fragile and can break when server side changes or with different
    // server versions; that is why do fuzzy assertions in this test based on string content
    String profileAsString = summary.profile().toString().toLowerCase();
    assertThat(profileAsString, containsString("hits"));
    assertEquals(0, summary.notifications().size());
    assertThat(summary, containsResultAvailableAfterAndResultConsumedAfter());
}

Example 10 with ResultCursor

use of org.neo4j.driver.async.ResultCursor in project neo4j-java-driver by neo4j.

the class AsyncTransactionIT method shouldConvertToTransformedListWithEmptyCursor.

@Test
void shouldConvertToTransformedListWithEmptyCursor() {
    AsyncTransaction tx = await(session.beginTransactionAsync());
    ResultCursor cursor = await(tx.runAsync("CREATE ()"));
    List<Map<String, Object>> maps = await(cursor.listAsync(record -> record.get(0).asMap()));
    assertEquals(0, maps.size());
}