API documentation

Creates an ExecutionProfile suitable for executing graph traversals as generated by queryFromTraversal().

Global

This function is global

Examples:

const dse = require('dse-driver');
const dseGraph = require('dse-graph');
// Use a single Client instance
// Create the execution profile once using this method
const client = new dse.Client({
  contactPoints: ['h1', 'h2'],
  profiles: [
    dseGraph.createExecutionProfile('graph-oltp-traversal')
  ]
});
// Obtain a new traversal source.
const g = dseGraph.traversalSource(client);
const query = dseGraph.queryFromTraversal(g.V().hasLabel('person'));
// Reference the execution profile previously created.
client.executeGraph(query, null, { executionProfile: 'graph-oltp-traversal'}, function(err, result) {
  assert.ifError(err);
  console.log('User email ' + result.first().email);
});

Parameters:

Name	Type	Description
name	String	Name of the execution profile.
options	Object	The options as defined in the DSE Driver.

Returns:

Type	Description
ExecutionProfile

Returns the string representation in GraphSON2 format of the traversal to be used in graph query executions.

Global

This function is global

Parameters:

Name	Type	Description
traversal		The Gremlin traversal instance to be converted to string.

Returns:

Type	Description
String

Creates a new graph traversal source. If no arguments are provided, a simple and non-iterable traversal source is used. This can be used to generate queries using queryFromTraversal(). Alternatively, providing a dse.Client and optionally GraphQueryOptions creates an iterable traversal source that works with a remote DSE graph instance.

Global

This function is global

Parameters:

Name	Type	Description
client	Client	The dse.Client instance.
options optional	GraphQueryOptions	The graph query options.

Returns:

Type	Description
GraphTraversalSource	Returns an Apache TinkerPop GraphTraversalSource.