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

Example 1 with Relationship

use of org.neo4j.graphdb.Relationship in project javaee7-samples by javaee-samples.

the class PersonSessionBean method getPersons.

public List<BackingBean> getPersons() {
    List<BackingBean> beans = new ArrayList();
    try (Transaction tx = graphDb.beginTx()) {
        for (String key : firstNode.getPropertyKeys()) {
            BackingBean bean = new BackingBean();
            Person p = Person.fromString((String) firstNode.getProperty(key));
            bean.setName(p.getName());
            bean.setAge(p.getAge());
            for (Relationship r : firstNode.getRelationships(RelTypes.SPOUSE, RelTypes.SISTER, RelTypes.BROTHER)) {
                if (r.isType(RelTypes.SPOUSE)) {
                    bean.setRelationship("spouse");
                    break;
                } else if (r.isType(RelTypes.SISTER)) {
                    bean.setRelationship("sister");
                    break;
                } else if (r.isType(RelTypes.BROTHER)) {
                    bean.setRelationship("brother");
                    break;
                }
            }
            beans.add(bean);
        }
        tx.success();
    }
    return beans;
}

Example 2 with Relationship

use of org.neo4j.graphdb.Relationship in project qi4j-sdk by Qi4j.

the class NeoNamedAssociationState method remove.

@Override
public boolean remove(String name) {
    for (Relationship rel : underlyingNode.getRelationships(RelTypes.NAMED_ASSOCIATION, Direction.OUTGOING)) {
        if (getRelationshipName(rel).equals(name)) {
            rel.delete();
            decrementCount();
            entity.setUpdated();
            return true;
        }
    }
    return false;
}

Example 3 with Relationship

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

the class TestPropertyBlocks method testYoyoArrayBase.

private void testYoyoArrayBase(boolean withNewTx) {
    Relationship rel = getGraphDb().createNode().createRelationshipTo(getGraphDb().createNode(), RelationshipType.withName("LOCKS"));
    long recordsInUseAtStart = propertyRecordsInUse();
    long valueRecordsInUseAtStart = dynamicArrayRecordsInUse();
    List<Long> theYoyoData = new ArrayList<Long>();
    for (int i = 0; i < PropertyType.getPayloadSizeLongs() - 1; i++) {
        theYoyoData.add(1L << 63);
        Long[] value = theYoyoData.toArray(new Long[] {});
        rel.setProperty("yoyo", value);
        if (withNewTx) {
            newTransaction();
            assertEquals(recordsInUseAtStart + 1, propertyRecordsInUse());
            assertEquals(valueRecordsInUseAtStart, dynamicArrayRecordsInUse());
        }
    }
    theYoyoData.add(1L << 63);
    Long[] value = theYoyoData.toArray(new Long[] {});
    rel.setProperty("yoyo", value);
    newTransaction();
    assertEquals(recordsInUseAtStart + 1, propertyRecordsInUse());
    assertEquals(valueRecordsInUseAtStart + 1, dynamicArrayRecordsInUse());
    rel.setProperty("filler", new long[] { 1 << 63, 1 << 63, 1 << 63 });
    newTransaction();
    assertEquals(recordsInUseAtStart + 2, propertyRecordsInUse());
}

Example 4 with Relationship

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

the class ParallelBatchImporterTest method verifyData.

protected void verifyData(int nodeCount, int relationshipCount, GraphDatabaseService db, IdGroupDistribution groups, long nodeRandomSeed, long relationshipRandomSeed) {
    // Read all nodes, relationships and properties ad verify against the input data.
    try (InputIterator<InputNode> nodes = nodes(nodeRandomSeed, nodeCount, inputIdGenerator, groups).iterator();
        InputIterator<InputRelationship> relationships = relationships(relationshipRandomSeed, relationshipCount, inputIdGenerator, groups).iterator()) {
        // Nodes
        Map<String, Node> nodeByInputId = new HashMap<>(nodeCount);
        Iterator<Node> dbNodes = db.getAllNodes().iterator();
        int verifiedNodes = 0;
        while (nodes.hasNext()) {
            InputNode input = nodes.next();
            Node node = dbNodes.next();
            assertNodeEquals(input, node);
            String inputId = uniqueId(input.group(), node);
            assertNull(nodeByInputId.put(inputId, node));
            verifiedNodes++;
            assertDegrees(node);
        }
        assertEquals(nodeCount, verifiedNodes);
        // Relationships
        Map<String, Relationship> relationshipByName = new HashMap<>();
        for (Relationship relationship : db.getAllRelationships()) {
            relationshipByName.put((String) relationship.getProperty("id"), relationship);
        }
        int verifiedRelationships = 0;
        while (relationships.hasNext()) {
            InputRelationship input = relationships.next();
            if (!inputIdGenerator.isMiss(input.startNode()) && !inputIdGenerator.isMiss(input.endNode())) {
                // A relationship referring to missing nodes. The InputIdGenerator is expected to generate
                // some (very few) of those. Skip it.
                String name = (String) propertyOf(input, "id");
                Relationship relationship = relationshipByName.get(name);
                assertNotNull("Expected there to be a relationship with name '" + name + "'", relationship);
                assertEquals(nodeByInputId.get(uniqueId(input.startNodeGroup(), input.startNode())), relationship.getStartNode());
                assertEquals(nodeByInputId.get(uniqueId(input.endNodeGroup(), input.endNode())), relationship.getEndNode());
                assertRelationshipEquals(input, relationship);
            }
            verifiedRelationships++;
        }
        assertEquals(relationshipCount, verifiedRelationships);
    }
}

Example 5 with Relationship

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

the class TxStateTransactionDataViewTest method correctlySaysRelIsDeleted.

@Test
public void correctlySaysRelIsDeleted() throws Exception {
    // Given
    state.relationshipDoDelete(1L, 1, 1L, 2L);
    Relationship rel = mock(Relationship.class);
    when(rel.getId()).thenReturn(1L);
    long noPropertyId = -1L;
    when(storeStatement.acquireSingleRelationshipCursor(1L)).thenReturn(asRelationshipCursor(1L, 1, 1L, 2L, noPropertyId));
    when(storeStatement.acquirePropertyCursor(noPropertyId, NO_LOCK)).thenReturn(asPropertyCursor());
    // When & Then
    assertThat(snapshot().isDeleted(rel), equalTo(true));
}