Examples with Relationship org.neo4j.graphdb.Relationship used on opensource projects

Example 36 with Relationship

use of org.neo4j.graphdb.Relationship in project neo4j by neo4j.

the class TestRelationship method testDirectedRelationship.

@Test
public void testDirectedRelationship() {
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel2 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    Relationship rel3 = node2.createRelationshipTo(node1, MyRelTypes.TEST);
    Node[] nodes = rel2.getNodes();
    assertEquals(2, nodes.length);
    assertTrue(nodes[0].equals(node1) && nodes[1].equals(node2));
    nodes = rel3.getNodes();
    assertEquals(2, nodes.length);
    assertTrue(nodes[0].equals(node2) && nodes[1].equals(node1));
    assertEquals(node1, rel2.getStartNode());
    assertEquals(node2, rel2.getEndNode());
    assertEquals(node2, rel3.getStartNode());
    assertEquals(node1, rel3.getEndNode());
    Relationship[] relArray = getRelationshipArray(node1.getRelationships(MyRelTypes.TEST, Direction.OUTGOING));
    assertEquals(1, relArray.length);
    assertEquals(rel2, relArray[0]);
    relArray = getRelationshipArray(node1.getRelationships(MyRelTypes.TEST, Direction.INCOMING));
    assertEquals(1, relArray.length);
    assertEquals(rel3, relArray[0]);
    relArray = getRelationshipArray(node2.getRelationships(MyRelTypes.TEST, Direction.OUTGOING));
    assertEquals(1, relArray.length);
    assertEquals(rel3, relArray[0]);
    relArray = getRelationshipArray(node2.getRelationships(MyRelTypes.TEST, Direction.INCOMING));
    assertEquals(1, relArray.length);
    assertEquals(rel2, relArray[0]);
    rel2.delete();
    rel3.delete();
    node1.delete();
    node2.delete();
}

Example 37 with Relationship

use of org.neo4j.graphdb.Relationship in project neo4j by neo4j.

the class TestRelationship method testRelGetProperties.

@Test
public void testRelGetProperties() {
    Integer int1 = new Integer(1);
    Integer int2 = new Integer(2);
    String string = new String("3");
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    try {
        rel1.getProperty(key1);
        fail("get non existing property din't throw exception");
    } catch (NotFoundException e) {
    // OK
    }
    try {
        rel1.getProperty(null);
        fail("get of null key din't throw exception");
    } catch (IllegalArgumentException e) {
    // OK
    }
    assertTrue(!rel1.hasProperty(key1));
    assertTrue(!rel1.hasProperty(null));
    rel1.setProperty(key1, int1);
    rel1.setProperty(key2, int2);
    rel1.setProperty(key3, string);
    assertTrue(rel1.hasProperty(key1));
    assertTrue(rel1.hasProperty(key2));
    assertTrue(rel1.hasProperty(key3));
    Map<String, Object> properties = rel1.getAllProperties();
    assertTrue(properties.get(key1).equals(int1));
    assertTrue(properties.get(key2).equals(int2));
    assertTrue(properties.get(key3).equals(string));
    properties = rel1.getProperties(key1, key2);
    assertTrue(properties.get(key1).equals(int1));
    assertTrue(properties.get(key2).equals(int2));
    assertFalse(properties.containsKey(key3));
    properties = node1.getProperties();
    assertTrue(properties.isEmpty());
    try {
        String[] names = null;
        node1.getProperties(names);
        fail();
    } catch (NullPointerException e) {
    // Ok
    }
    try {
        String[] names = new String[] { null };
        node1.getProperties(names);
        fail();
    } catch (NullPointerException e) {
    // Ok
    }
    try {
        rel1.removeProperty(key3);
    } catch (NotFoundException e) {
        fail("Remove of property failed.");
    }
    assertTrue(!rel1.hasProperty(key3));
    assertTrue(!rel1.hasProperty(null));
    rel1.delete();
    node2.delete();
    node1.delete();
}

Example 38 with Relationship

use of org.neo4j.graphdb.Relationship in project neo4j by neo4j.

the class TestRelationship method testAddPropertyThenDelete.

@Test
public void testAddPropertyThenDelete() {
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    rel.setProperty("test", "test");
    newTransaction();
    rel.setProperty("test2", "test2");
    rel.delete();
    node1.delete();
    node2.delete();
    newTransaction();
}

Example 39 with Relationship

use of org.neo4j.graphdb.Relationship in project neo4j by neo4j.

the class TestRelationship method testRelationshipIsType.

@Test
public void testRelationshipIsType() {
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    assertTrue(rel.isType(MyRelTypes.TEST));
    assertTrue(rel.isType(new RelationshipType() {

        @Override
        public String name() {
            return MyRelTypes.TEST.name();
        }
    }));
    assertFalse(rel.isType(MyRelTypes.TEST_TRAVERSAL));
    rel.delete();
    node1.delete();
    node2.delete();
}

Example 40 with Relationship

use of org.neo4j.graphdb.Relationship in project neo4j by neo4j.

the class TestRelationshipCount method deleteOneRelationship.

private void deleteOneRelationship(Node node, RelType type, Direction direction, int which) {
    Relationship last = null;
    int counter = 0;
    for (Relationship rel : node.getRelationships(type, direction)) {
        if (isLoop(rel) == (direction == Direction.BOTH)) {
            last = rel;
            if (counter++ == which) {
                rel.delete();
                return;
            }
        }
    }
    if (which == Integer.MAX_VALUE && last != null) {
        last.delete();
        return;
    }
    fail("Couldn't find " + (direction == Direction.BOTH ? "loop" : "non-loop") + " relationship " + type.name() + " " + direction + " to delete");
}