private void visitInTx(SpatialIndexVisitor visitor, Long indexNodeId) {
Node indexNode = database.getNodeById(indexNodeId);
if (!visitor.needsToVisit(getIndexNodeEnvelope(indexNode))) {
return;
}
if (indexNode.hasRelationship(RTreeRelationshipTypes.RTREE_CHILD, Direction.OUTGOING)) {
// Node is not a leaf
// collect children
List<Long> children = new ArrayList<Long>();
for (Relationship rel :
indexNode.getRelationships(RTreeRelationshipTypes.RTREE_CHILD, Direction.OUTGOING)) {
children.add(rel.getEndNode().getId());
}
// visit children
for (Long child : children) {
visitInTx(visitor, child);
}
} else if (indexNode.hasRelationship(
RTreeRelationshipTypes.RTREE_REFERENCE, Direction.OUTGOING)) {
// Node is a leaf
try (Transaction tx = database.beginTx()) {
for (Relationship rel :
indexNode.getRelationships(
RTreeRelationshipTypes.RTREE_REFERENCE, Direction.OUTGOING)) {
visitor.onIndexReference(rel.getEndNode());
}
tx.success();
}
}
}
public void visit(SpatialIndexVisitor visitor, Node indexNode) {
if (!visitor.needsToVisit(getIndexNodeEnvelope(indexNode))) {
return;
}
try (Transaction tx = database.beginTx()) {
if (indexNode.hasRelationship(RTreeRelationshipTypes.RTREE_CHILD, Direction.OUTGOING)) {
// Node is not a leaf
for (Relationship rel :
indexNode.getRelationships(RTreeRelationshipTypes.RTREE_CHILD, Direction.OUTGOING)) {
Node child = rel.getEndNode();
// collect children results
visit(visitor, child);
}
} else if (indexNode.hasRelationship(
RTreeRelationshipTypes.RTREE_REFERENCE, Direction.OUTGOING)) {
// Node is a leaf
for (Relationship rel :
indexNode.getRelationships(
RTreeRelationshipTypes.RTREE_REFERENCE, Direction.OUTGOING)) {
visitor.onIndexReference(rel.getEndNode());
}
}
tx.success();
}
}
protected Node findLeafContainingGeometryNode(Node geomNode, boolean throwExceptionIfNotFound) {
if (!geomNode.hasRelationship(RTreeRelationshipTypes.RTREE_REFERENCE, Direction.INCOMING)) {
if (throwExceptionIfNotFound) {
throw new RuntimeException("GeometryNode not indexed with an RTree: " + geomNode.getId());
} else {
return null;
}
}
Node indexNodeLeaf =
geomNode
.getSingleRelationship(RTreeRelationshipTypes.RTREE_REFERENCE, Direction.INCOMING)
.getStartNode();
Node root = null;
Node child = indexNodeLeaf;
while (root == null) {
Node parent = getIndexNodeParent(child);
if (parent == null) {
root = child;
} else {
child = parent;
}
}
if (root.getId() != getIndexRoot().getId()) {
if (throwExceptionIfNotFound) {
throw new RuntimeException("GeometryNode not indexed in this RTree: " + geomNode.getId());
} else {
return null;
}
} else {
return indexNodeLeaf;
}
}
private void initIndexRoot() {
Node layerNode = getRootNode();
if (!layerNode.hasRelationship(RTreeRelationshipTypes.RTREE_ROOT, Direction.OUTGOING)) {
// index initialization
Node root = database.createNode();
layerNode.createRelationshipTo(root, RTreeRelationshipTypes.RTREE_ROOT);
}
}
@Test
public void testTxCacheLoadIsolation() throws Exception {
Node node = getGraphDb().createNode();
node.setProperty("someproptest", "testing");
Node node1 = getGraphDb().createNode();
node1.setProperty("someotherproptest", 2);
commit();
EmbeddedGraphDatabase graphDb = (EmbeddedGraphDatabase) getGraphDb();
TransactionManager txManager = graphDb.getConfig().getTxModule().getTxManager();
NodeManager nodeManager = graphDb.getConfig().getGraphDbModule().getNodeManager();
txManager.begin();
node.setProperty("someotherproptest", "testing2");
Relationship rel = node.createRelationshipTo(node1, MyRelTypes.TEST);
javax.transaction.Transaction txA = txManager.suspend();
txManager.begin();
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(!node.hasProperty("someotherproptest"));
assertTrue(!node.hasRelationship());
nodeManager.clearCache();
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(!node.hasProperty("someotherproptest"));
javax.transaction.Transaction txB = txManager.suspend();
txManager.resume(txA);
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(node.hasProperty("someotherproptest"));
assertTrue(node.hasRelationship());
nodeManager.clearCache();
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(node.hasProperty("someotherproptest"));
assertTrue(node.hasRelationship());
txManager.suspend();
txManager.resume(txB);
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(!node.hasProperty("someotherproptest"));
assertTrue(!node.hasRelationship());
txManager.rollback();
txManager.resume(txA);
node.delete();
node1.delete();
rel.delete();
txManager.commit();
newTransaction();
}
private void init(PrintWriter out) {
final Node node = getReferenceNode();
if (node != null && (node.hasRelationship() || hasProperties(node))) {
String id = identifier(node);
out.println("start " + id + " = node(" + node.getId() + ") with " + id + " ");
String labels = labelString(node);
if (!labels.isEmpty()) {
out.print("set " + identifier(node) + " " + labels + " ");
}
appendPropertySetters(out, node);
}
}
private void findAndCreateSuggestions(final Node node) {
if (!node.hasRelationship(ConnectionType.KNOWS)) {
return;
}
final Traverser traverser = friendToSuggestionTraversalDescription().traverse(node);
for (final Node suggestionNode : traverser.nodes()) {
if (!this.isSuggestionRelationshipPresent(node, suggestionNode)) {
node.createRelationshipTo(suggestionNode, ConnectionType.SUGGESTED);
if (logger.isInfoEnabled()) {
logger.info(
"New Suggestion Between {} and {}",
node.getPropertyValues(),
suggestionNode.getPropertyValues());
}
}
}
}
private void initIndexMetadata() {
Node layerNode = getRootNode();
if (layerNode.hasRelationship(RTreeRelationshipTypes.RTREE_METADATA, Direction.OUTGOING)) {
// metadata already present
metadataNode =
layerNode
.getSingleRelationship(RTreeRelationshipTypes.RTREE_METADATA, Direction.OUTGOING)
.getEndNode();
maxNodeReferences = (Integer) metadataNode.getProperty("maxNodeReferences");
} else {
// metadata initialization
metadataNode = database.createNode();
layerNode.createRelationshipTo(metadataNode, RTreeRelationshipTypes.RTREE_METADATA);
metadataNode.setProperty("maxNodeReferences", maxNodeReferences);
}
saveCount();
}
/** {@inheritDoc} */
@Override
public void expire(Node node) {
if (!node.hasRelationship()) {
node.delete();
}
}
private boolean nodeIsLeaf(Node node) {
return !node.hasRelationship(RTreeRelationshipTypes.RTREE_CHILD, Direction.OUTGOING);
}
@Override
public boolean isLeaf() {
return (!node.hasRelationship(RelType.HAS_CHILD, Direction.OUTGOING));
}
