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

Example 11 with Relationship

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

the class Neo4jConstraintsTest method testDeleteNodeWithRel3.

@Test
public void testDeleteNodeWithRel3() {
    // make sure we can delete in wrong order
    Node node0 = getGraphDb().createNode();
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel0 = node0.createRelationshipTo(node1, MyRelTypes.TEST);
    Relationship rel1 = node0.createRelationshipTo(node2, MyRelTypes.TEST);
    node1.delete();
    rel0.delete();
    Transaction tx = getTransaction();
    tx.success();
    tx.close();
    setTransaction(getGraphDb().beginTx());
    node2.delete();
    rel1.delete();
    node0.delete();
}

Example 12 with Relationship

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

the class Neo4jConstraintsTest method testAddPropertyDeletedRelationship.

@Test
public void testAddPropertyDeletedRelationship() {
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    rel.delete();
    try {
        rel.setProperty(key, 1);
        Transaction tx = getTransaction();
        tx.success();
        tx.close();
        fail("Add property on deleted rel should not validate");
    } catch (Exception e) {
    // good
    }
    node1.delete();
    node2.delete();
}

Example 13 with Relationship

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

the class Neo4jConstraintsTest method testChangePropertyDeletedRelationship.

@Test
public void testChangePropertyDeletedRelationship() {
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    rel.setProperty(key, 1);
    rel.delete();
    try {
        rel.setProperty(key, 2);
        Transaction tx = getTransaction();
        tx.success();
        tx.close();
        fail("Change property on deleted rel should not validate");
    } catch (Exception e) {
    // ok
    }
    node1.delete();
    node2.delete();
}

Example 14 with Relationship

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

the class Neo4jConstraintsTest method testDeleteReferenceNodeOrLastNodeIsOk.

@Test
public void testDeleteReferenceNodeOrLastNodeIsOk() {
    Transaction tx = getTransaction();
    for (int i = 0; i < 10; i++) {
        getGraphDb().createNode();
    }
    // empty the DB instance
    for (Node node : getGraphDb().getAllNodes()) {
        for (Relationship rel : node.getRelationships()) {
            rel.delete();
        }
        node.delete();
    }
    tx.success();
    tx.close();
    tx = getGraphDb().beginTx();
    assertFalse(getGraphDb().getAllNodes().iterator().hasNext());
    // TODO: this should be valid, fails right now!
    // assertEquals( 0, numNodesPost );
    tx.success();
    tx.close();
}

Example 15 with Relationship

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

the class RelationshipProxyTest method createDropRelationshipLongStringProperty.

@Test
public void createDropRelationshipLongStringProperty() {
    Label markerLabel = DynamicLabel.label("marker");
    String testPropertyKey = "testProperty";
    String propertyValue = RandomStringUtils.randomAscii(255);
    try (Transaction tx = db.beginTx()) {
        Node start = db.createNode(markerLabel);
        Node end = db.createNode(markerLabel);
        Relationship relationship = start.createRelationshipTo(end, withName("type"));
        relationship.setProperty(testPropertyKey, propertyValue);
        tx.success();
    }
    try (Transaction tx = db.beginTx()) {
        Relationship relationship = db.getRelationshipById(0);
        assertEquals(propertyValue, relationship.getProperty(testPropertyKey));
        tx.success();
    }
    try (Transaction tx = db.beginTx()) {
        Relationship relationship = db.getRelationshipById(0);
        relationship.removeProperty(testPropertyKey);
        tx.success();
    }
    try (Transaction tx = db.beginTx()) {
        Relationship relationship = db.getRelationshipById(0);
        assertFalse(relationship.hasProperty(testPropertyKey));
        tx.success();
    }
}