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<dependency> <groupId>com.tinkerpop.blueprints</groupId> <artifactId>blueprints-neo4jbatch-graph</artifactId> <version>??</version> </dependency>
Graph graph = new Neo4jBatchGraph("/tmp/neo4j"); // do your batch insertion graph.shutdown(); graph = new Neo4jGraph("/tmp/neo4j");
Neo4jBatchGraph provides support for the bulk insertion of data into a Neo4j graph. This Blueprints implementation is single-threaded and non-transactional. It is meant for initial dumps of raw data into a Neo4j graph and is much faster than doing the equivalent process using
Neo4jGraph (see Neo4j Implementation).
Note: This is not a pure Blueprints implementation. Consider the following issues when using
- Delete methods (except for
Element.removeProperty()) are not supported.
- Key indices are not available until after the graph has been shutdown.
Neo4jGraph, and like
Neo4jBatchGraph can accept a
long id on vertex creation:
long id = 1L; graph.addVertex(id)
Neo4jBatchGraph it is important to make use of the
flush method on
Neo4jBatchIndex. This method must be called before querying the index for data to ensure that it returns results consistently. This method is not a standard
Index API method and thus, be sure to typecast the index to
Neo4jBatchIndex. Note that calling
flush (and using indices in general) has a noticeable impact on the performance when writing to the graph. Finally, see
Neo4jBatchGraph.flushIndices() for flushing all indices at once.
Neo4jBatchGraph Feature List
supportsDuplicateEdges: true supportsSelfLoops: true supportsSerializableObjectProperty: false supportsBooleanProperty: true supportsDoubleProperty: true supportsFloatProperty: true supportsIntegerProperty: true supportsPrimitiveArrayProperty: true supportsUniformListProperty: true supportsMixedListProperty: false supportsLongProperty: true supportsMapProperty: false supportsStringProperty: true ignoresSuppliedIds: false isPersistent: true isRDFModel: false isWrapper: false supportsIndices: true supportsVertexIndex: true supportsEdgeIndex: true supportsKeyIndices: true supportsVertexKeyIndex: true supportsEdgeKeyIndex: true supportsEdgeIteration: false supportsVertexIteration: false supportsTransactions: false supportsThreadedTransactions: false