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

Example 21 with Relationship

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

the class TestRelationship method testRelationshipRemoveProperty.

@Test
public void testRelationshipRemoveProperty() {
    Integer int1 = new Integer(1);
    Integer int2 = new Integer(2);
    String string1 = new String("1");
    String string2 = new String("2");
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    Relationship rel2 = node2.createRelationshipTo(node1, MyRelTypes.TEST);
    // verify that we can rely on PL to reomve non existing properties
    try {
        if (rel1.removeProperty(key1) != null) {
            fail("Remove of non existing property should return null");
        }
    } catch (NotFoundException e) {
    // OK
    }
    try {
        rel1.removeProperty(null);
        fail("Remove null property should throw exception.");
    } catch (IllegalArgumentException e) {
    // OK
    }
    rel1.setProperty(key1, int1);
    rel2.setProperty(key1, string1);
    rel1.setProperty(key2, string2);
    rel2.setProperty(key2, int2);
    try {
        rel1.removeProperty(null);
        fail("Null argument should result in exception.");
    } catch (IllegalArgumentException e) {
    // OK
    }
    // test remove property
    assertEquals(int1, rel1.removeProperty(key1));
    assertEquals(string1, rel2.removeProperty(key1));
    // test remove of non existing property
    try {
        if (rel2.removeProperty(key1) != null) {
            fail("Remove of non existing property should return null");
        }
    } catch (NotFoundException e) {
        // have to set rollback only here
        getTransaction().failure();
    }
    rel1.delete();
    rel2.delete();
    node1.delete();
    node2.delete();
}

Example 22 with Relationship

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

the class TestRelationship method testRelationshipAddProperty.

@Test
public void testRelationshipAddProperty() {
    Node node1 = getGraphDb().createNode();
    Node node2 = getGraphDb().createNode();
    Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
    Relationship rel2 = node2.createRelationshipTo(node1, MyRelTypes.TEST);
    try {
        rel1.setProperty(null, null);
        fail("Null argument should result in exception.");
    } catch (IllegalArgumentException e) {
    // OK
    }
    Integer int1 = new Integer(1);
    Integer int2 = new Integer(2);
    String string1 = new String("1");
    String string2 = new String("2");
    // add property
    rel1.setProperty(key1, int1);
    rel2.setProperty(key1, string1);
    rel1.setProperty(key2, string2);
    rel2.setProperty(key2, int2);
    assertTrue(rel1.hasProperty(key1));
    assertTrue(rel2.hasProperty(key1));
    assertTrue(rel1.hasProperty(key2));
    assertTrue(rel2.hasProperty(key2));
    assertTrue(!rel1.hasProperty(key3));
    assertTrue(!rel2.hasProperty(key3));
    assertEquals(int1, rel1.getProperty(key1));
    assertEquals(string1, rel2.getProperty(key1));
    assertEquals(string2, rel1.getProperty(key2));
    assertEquals(int2, rel2.getProperty(key2));
    getTransaction().failure();
}

Example 23 with Relationship

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

the class TestRelationship method getAllRelationships.

@Test
public void getAllRelationships() throws Exception {
    Set<Relationship> existingRelationships = Iterables.addToCollection(getGraphDb().getAllRelationships(), new HashSet<>());
    Set<Relationship> createdRelationships = new HashSet<>();
    Node node = getGraphDb().createNode();
    for (int i = 0; i < 100; i++) {
        createdRelationships.add(node.createRelationshipTo(getGraphDb().createNode(), MyRelTypes.TEST));
    }
    newTransaction();
    Set<Relationship> allRelationships = new HashSet<>();
    allRelationships.addAll(existingRelationships);
    allRelationships.addAll(createdRelationships);
    int count = 0;
    for (Relationship rel : getGraphDb().getAllRelationships()) {
        assertTrue("Unexpected rel " + rel + ", expected one of " + allRelationships, allRelationships.contains(rel));
        count++;
    }
    assertEquals(allRelationships.size(), count);
}

Example 24 with Relationship

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

the class TestRelationship method testCreateRelationshipWithCommitts.

@Test
public // throws NotFoundException
void testCreateRelationshipWithCommitts() {
    Node n1 = getGraphDb().createNode();
    newTransaction();
    n1 = getGraphDb().getNodeById(n1.getId());
    Node n2 = getGraphDb().createNode();
    n1.createRelationshipTo(n2, MyRelTypes.TEST);
    newTransaction();
    Relationship[] relArray = getRelationshipArray(n1.getRelationships());
    assertEquals(1, relArray.length);
    relArray = getRelationshipArray(n1.getRelationships());
    relArray[0].delete();
    n1.delete();
    n2.delete();
}

Example 25 with Relationship

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

the class TestRelationship method deletionOfAlreadyDeletedRelationshipShouldThrow.

@Test(expected = NotFoundException.class)
public void deletionOfAlreadyDeletedRelationshipShouldThrow() {
    // Given
    GraphDatabaseService db = getGraphDb();
    // transaction is opened by test
    Node node1 = db.createNode();
    Node node2 = db.createNode();
    Relationship relationship = node1.createRelationshipTo(node2, TEST);
    commit();
    try (Transaction tx = db.beginTx()) {
        relationship.delete();
        tx.success();
    }
    // When
    try (Transaction tx = db.beginTx()) {
        relationship.delete();
        tx.success();
    }
}