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

Example 51 with Node

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

the class TestRelationship method setPropertyAndClearCacheBeforeCommit.

@Test
public void setPropertyAndClearCacheBeforeCommit() throws Exception {
    Node node = getGraphDb().createNode();
    node.setProperty("name", "Test");
    assertEquals("Test", node.getProperty("name"));
}

Example 52 with Node

use of org.neo4j.graphdb.Node 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();
    }
}

Example 53 with Node

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

the class TestRelationship method deleteRelsWithCommitInMiddle.

@Test
public void deleteRelsWithCommitInMiddle() throws Exception {
    Node node = getGraphDb().createNode();
    Node otherNode = getGraphDb().createNode();
    RelationshipType[] types = new RelationshipType[] { withName("r1"), withName("r2"), withName("r3"), withName("r4") };
    // 30*4 > 100 (rel grabSize)
    int count = 30;
    for (int i = 0; i < types.length * count; i++) {
        node.createRelationshipTo(otherNode, types[i % types.length]);
    }
    newTransaction();
    int delCount = 0;
    int loopCount = 0;
    while (delCount < count) {
        loopCount++;
        for (Relationship rel : node.getRelationships(types[1])) {
            rel.delete();
            if (++delCount == count / 2) {
                newTransaction();
            }
        }
    }
    assertEquals(1, loopCount);
    assertEquals(count, delCount);
}

Example 54 with Node

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

the class TestLengthyArrayPacking method bitPackingOfLengthyArrays.

@Test
public void bitPackingOfLengthyArrays() throws Exception {
    long arrayRecordsBefore = dynamicArrayRecordsInUse();
    // Store an int array which would w/o packing require two dynamic records
    // 4*40 = 160B (assuming data size of 120B)
    int[] arrayWhichUnpackedWouldFillTwoDynamicRecords = new int[40];
    for (int i = 0; i < arrayWhichUnpackedWouldFillTwoDynamicRecords.length; i++) {
        arrayWhichUnpackedWouldFillTwoDynamicRecords[i] = i * i;
    }
    Node node = getGraphDb().createNode();
    String key = "the array";
    node.setProperty(key, arrayWhichUnpackedWouldFillTwoDynamicRecords);
    newTransaction();
    // Make sure it only requires one dynamic record
    assertEquals(arrayRecordsBefore + 1, dynamicArrayRecordsInUse());
    assertTrue(Arrays.equals(arrayWhichUnpackedWouldFillTwoDynamicRecords, (int[]) node.getProperty(key)));
}

Example 55 with Node

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

the class TestLoopRelationships method getNewlyCreatedLoopRelationshipFromCache.

@Test
public void getNewlyCreatedLoopRelationshipFromCache() throws Exception {
    Node node = getGraphDb().createNode();
    node.createRelationshipTo(getGraphDb().createNode(), TEST);
    newTransaction();
    Relationship relationship = node.createRelationshipTo(node, TEST);
    newTransaction();
    assertEquals(relationship, node.getSingleRelationship(TEST, Direction.INCOMING));
}