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

Example 96 with Relationship

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

the class TestAutoIndexReopen method testForceOpenIfChanged.

@Test
public void testForceOpenIfChanged() {
    // do some actions to force the indexreader to be reopened
    try (Transaction tx = graphDb.beginTx()) {
        Node node1 = graphDb.getNodeById(id1);
        Node node2 = graphDb.getNodeById(id2);
        Node node3 = graphDb.getNodeById(id3);
        node1.setProperty("np2", "test property");
        node1.getRelationships(RelationshipType.withName("FOO")).forEach(r -> {
            r.delete();
        });
        // check first node
        assertEquals(0, relationShipAutoIndex().get("type", "FOO", node1, node3).size());
        // create second relation ship
        Relationship rel = node1.createRelationshipTo(node3, RelationshipType.withName("FOO"));
        rel.setProperty("type", "FOO");
        // check second node -> crashs with old FullTxData
        assertEquals(0, relationShipAutoIndex().get("type", "FOO", node1, node2).size());
        // create second relation ship
        rel = node1.createRelationshipTo(node2, RelationshipType.withName("FOO"));
        rel.setProperty("type", "FOO");
        assertEquals(1, relationShipAutoIndex().get("type", "FOO", node1, node2).size());
        tx.success();
    }
}

Example 97 with Relationship

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

the class TestAutoIndexReopen method startDb.

@Before
public void startDb() {
    graphDb = (GraphDatabaseAPI) new TestGraphDatabaseFactory().newImpermanentDatabaseBuilder().setConfig(new HashMap<>()).newGraphDatabase();
    try (Transaction tx = graphDb.beginTx()) {
        // Create the node and relationship auto-indexes
        graphDb.index().getNodeAutoIndexer().setEnabled(true);
        graphDb.index().getNodeAutoIndexer().startAutoIndexingProperty("nodeProp");
        graphDb.index().getRelationshipAutoIndexer().setEnabled(true);
        graphDb.index().getRelationshipAutoIndexer().startAutoIndexingProperty("type");
        tx.success();
    }
    try (Transaction tx = graphDb.beginTx()) {
        Node node1 = graphDb.createNode();
        Node node2 = graphDb.createNode();
        Node node3 = graphDb.createNode();
        id1 = node1.getId();
        id2 = node2.getId();
        id3 = node3.getId();
        Relationship rel = node1.createRelationshipTo(node2, RelationshipType.withName("FOO"));
        rel.setProperty("type", "FOO");
        tx.success();
    }
}

Example 98 with Relationship

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

the class TestAutoIndexing method testRemoveRelationshipRemovesDocument.

@Test
public void testRemoveRelationshipRemovesDocument() {
    AutoIndexer<Relationship> autoIndexer = graphDb.index().getRelationshipAutoIndexer();
    autoIndexer.startAutoIndexingProperty("foo");
    autoIndexer.setEnabled(true);
    newTransaction();
    Node node1 = graphDb.createNode();
    Node node2 = graphDb.createNode();
    Relationship rel = node1.createRelationshipTo(node2, RelationshipType.withName("foo"));
    rel.setProperty("foo", "bar");
    newTransaction();
    assertThat(graphDb.index().forRelationships("relationship_auto_index").query("_id_:*").size(), equalTo(1));
    newTransaction();
    rel.delete();
    newTransaction();
    assertThat(graphDb.index().forRelationships("relationship_auto_index").query("_id_:*").size(), equalTo(0));
}

Example 99 with Relationship

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

the class TestLuceneIndex method makeSureYouCanRemoveFromRelationshipIndex.

@Test
public void makeSureYouCanRemoveFromRelationshipIndex() {
    Node n1 = graphDb.createNode();
    Node n2 = graphDb.createNode();
    Relationship r = n1.createRelationshipTo(n2, withName("foo"));
    RelationshipIndex index = graphDb.index().forRelationships("rel-index");
    String key = "bar";
    index.remove(r, key, "value");
    index.add(r, key, "otherValue");
    for (int i = 0; i < 2; i++) {
        assertThat(index.get(key, "value"), emptyIterable());
        assertThat(index.get(key, "otherValue"), Contains.contains(r));
        restartTx();
    }
}

Example 100 with Relationship

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

the class TestLuceneIndex method removingAnIndexedRelationshipWillAlsoRemoveItFromTheIndex.

@Test
public void removingAnIndexedRelationshipWillAlsoRemoveItFromTheIndex() {
    Index<Relationship> index = relationshipIndex(LuceneIndexImplementation.EXACT_CONFIG);
    Node a = graphDb.createNode();
    Node b = graphDb.createNode();
    Relationship rel = a.createRelationshipTo(b, withName("REL"));
    rel.setProperty("poke", 1);
    index.add(rel, "key", "value");
    commitTx();
    beginTx();
    rel.delete();
    commitTx();
    beginTx();
    IndexHits<Relationship> rels = index.get("key", "value");
    // IndexHits.size is allowed to be inaccurate in this case:
    assertThat(rels.size(), isOneOf(0, 1));
    for (Relationship r : rels) {
        r.getProperty("poke");
        fail("Found relationship " + r);
    }
    commitTx();
    beginTx();
    IndexHits<Relationship> relsAgain = index.get("key", "value");
    // After a read, the index should be repaired:
    assertThat(relsAgain.size(), is(0));
    for (Relationship r : relsAgain) {
        r.getProperty("poke");
        fail("Found relationship " + r);
    }
}