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ScyllaDB Python Driver is available under the Apache v2 License. ScyllaDB Python Driver is a fork of DataStax Python Driver. See Copyright here.
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cassandra.datastax.graph.fluent
¶Dse Graph utility class for GraphTraversal construction and execution.
Graph query language, Default is ‘bytecode-json’ (GraphSON).
Creates an ExecutionProfile for GraphTraversal execution. You need to register that execution profile to the cluster by using cluster.add_execution_profile.
graph_name – The graph name
graph_protocol – (Optional) The graph protocol, default is DSE_GRAPH_QUERY_PROTOCOL.
From a GraphTraversal, return a query string based on the language specified in DseGraph.DSE_GRAPH_QUERY_LANGUAGE.
traversal – The GraphTraversal object
graph_protocol – The graph protocol. Default is DseGraph.DSE_GRAPH_QUERY_PROTOCOL.
context – The dict of the serialization context, needed for GraphSON3 (tuple, udt). e.g: {‘cluster’: cluster, ‘graph_name’: name}
Returns a TinkerPop GraphTraversalSource binded to the session and graph_name if provided.
session – (Optional) A DSE session
graph_name – (Optional) DSE Graph name
execution_profile – (Optional) Execution profile for traversal queries. Default is set to EXEC_PROFILE_GRAPH_DEFAULT.
traversal_class – (Optional) The GraphTraversalSource class to use (DSL).
from cassandra.cluster import Cluster
from cassandra.datastax.graph.fluent import DseGraph
c = Cluster()
session = c.connect()
g = DseGraph.traversal_source(session, 'my_graph')
print g.V().valueMap().toList()
Returns the cassandra.datastax.graph.fluent.query.TraversalBatch
object allowing to
execute multiple traversals in the same transaction.
A Tinkerpop RemoteConnection to execute traversal queries on DSE.
session – A DSE session
graph_name – (Optional) DSE Graph name.
execution_profile – (Optional) Execution profile for traversal queries. Default is set to EXEC_PROFILE_GRAPH_DEFAULT.
Base row factory for graph traversal. This class basically wraps a graphson reader function to handle additional features of Gremlin/DSE and is callable as a normal row factory.
bulk results
alias of _GremlinGraphSON2RowFactory
alias of _DseGraphSON2RowFactory
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ScyllaDB Python Driver is available under the Apache v2 License. ScyllaDB Python Driver is a fork of DataStax Python Driver. See Copyright here.
cassandra
- Exceptions and Enumscassandra.cluster
- Clusters and Sessionscassandra.policies
- Load balancing and Failure Handling Policiescassandra.auth
- Authenticationcassandra.graph
- Graph Statements, Options, and Row Factoriescassandra.metadata
- Schema and Ring Topologycassandra.metrics
- Performance Metricscassandra.query
- Prepared Statements, Batch Statements, Tracing, and Row Factoriescassandra.pool
- Hosts and Connection Poolscassandra.protocol
- Protocol Featurescassandra.encoder
- Encoders for non-prepared Statementscassandra.decoder
- Data Return Formatscassandra.concurrent
- Utilities for Concurrent Statement Executioncassandra.connection
- Low Level Connection Infocassandra.util
- Utilitiescassandra.timestamps
- Timestamp Generationcassandra.io.asyncioreactor
- asyncio
Event Loopcassandra.io.asyncorereactor
- asyncore
Event Loopcassandra.io.eventletreactor
- eventlet
-compatible Connectioncassandra.io.libevreactor
- libev
Event Loopcassandra.io.geventreactor
- gevent
-compatible Event Loopcassandra.io.twistedreactor
- Twisted Event Loopcassandra.cqlengine.models
- Table models for object mappingcassandra.cqlengine.columns
- Column types for object mapping modelscassandra.cqlengine.query
- Query and filter model objectscassandra.cqlengine.connection
- Connection management for cqlenginecassandra.cqlengine.management
- Schema management for cqlenginecassandra.cqlengine.usertype
- Model classes for User Defined Typescassandra.datastax.graph
- Graph Statements, Options, and Row Factoriescassandra.datastax.graph.fluent
cassandra.datastax.graph.fluent.query
cassandra.datastax.graph.fluent.predicates
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