Examples with StorageRelationshipScanCursor org.neo4j.storageengine.api.StorageRelationshipScanCursor used on opensource projects

Example 1 with StorageRelationshipScanCursor

use of org.neo4j.storageengine.api.StorageRelationshipScanCursor in project neo4j by neo4j.

the class NeoStoresTest method relDelete.

private void relDelete(long id) {
    RelationshipVisitor<RuntimeException> visitor = (relId, type, startNode, endNode) -> transactionState.relationshipDoDelete(relId, type, startNode, endNode);
    if (!transactionState.relationshipVisit(id, visitor)) {
        try (StorageRelationshipScanCursor cursor = storageReader.allocateRelationshipScanCursor(NULL)) {
            cursor.single(id);
            if (!cursor.next()) {
                throw new RuntimeException("Relationship " + id + " not found");
            }
            visitor.visit(id, cursor.type(), cursor.sourceNodeReference(), cursor.targetNodeReference());
        }
    }
}