org.neo4j.graphdb.NotFoundException Java Examples

The following examples show how to use org.neo4j.graphdb.NotFoundException. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: Traversals.java    From EvilCoder with MIT License 5 votes vote down vote up 
public static Node getStatementForASTNode(Node node)
{
	Node n = node;
	Node parent = node;

	while (true)
	{

		try
		{
			Object property = n.getProperty(NodeKeys.IS_CFG_NODE);
			return n;
		}
		catch (NotFoundException ex)
		{

		}

		Iterable<Relationship> rels = n
				.getRelationships(Direction.INCOMING);
		for (Relationship rel : rels)
		{
			parent = rel.getStartNode();
			break;
		}

		if (n == parent)
			return null;
		n = parent;
	}
}
Example #2
Source File: Neo4jApiTransformationRepairPosLength.java    From trainbenchmark with Eclipse Public License 1.0 5 votes vote down vote up 
@Override
public void activate(final Collection<Neo4jPosLengthMatch> matches) {
	for (final Neo4jPosLengthMatch match : matches) {
		final Node segment = match.getSegment();
		try {
			final Number lengthNumber = (Number) segment.getProperty(ModelConstants.LENGTH);
			final int length = Neo4jHelper.numberToInt(lengthNumber);

			segment.setProperty(ModelConstants.LENGTH, -length + 1);
		} catch (final NotFoundException e) {
			// do nothing (node has been removed)
		}
	}
}
Example #3
Source File: Neo4jCypherTransformationRepairPosLength.java    From trainbenchmark with Eclipse Public License 1.0 5 votes vote down vote up 
@Override
public void activate(final Collection<Neo4jPosLengthMatch> matches) throws IOException {
	for (final Neo4jPosLengthMatch match : matches) {
		try {
			final Map<String, Object> parameters = ImmutableMap.of( //
				QueryConstants.VAR_SEGMENT, match.getSegment() //
			);
			driver.runTransformation(transformationDefinition, parameters);
		} catch (final NotFoundException e) {
			// do nothing (node has been removed)
		}
	}
}
Example #4
Source File: Neo4jLiveTest.java    From tutorials with MIT License 5 votes vote down vote up 
@Test
public void testUpdate() {
    graphDb.beginTx();

    graphDb.execute("CREATE (baeldung:Company {name:\"Baeldung\"}) " +
            "-[:owns]-> (tesla:Car {make: 'tesla', model: 'modelX'})" +
            "RETURN baeldung, tesla");

    Result result = graphDb.execute("MATCH (car:Car)" +
            "WHERE car.make='tesla'" +
            " SET car.milage=120" +
            " SET car :Car:Electro" +
            " SET car.model=NULL" +
            " RETURN car");

    Map<String, Object> firstResult = result.next();
    Node car = (Node) firstResult.get("car");

    Assert.assertEquals(car.getProperty("milage"), 120L);
    Assert.assertEquals(car.getLabels(), Arrays.asList(Label.label("Car"), Label.label("Electro")));

    try {
        car.getProperty("model");
        Assert.fail();
    } catch (NotFoundException e) {
        // expected
    }
}