flatMap

Create a map of traversal objects and stream to the next traversal step.

Synopsis

flatMap(traversal)
Table 1. Legend
Syntax conventions Description
Lowercase and uppercase Literal keyword. Includes ().
Italics Variable value. Replace with a user-defined value.
[] Optional. Square brackets ( [] ) surround optional command arguments. Do not type the square brackets.
{} Group. Braces ( {} ) identify a group to choose from. Do not type the braces.
| Or. A vertical bar ( | ) separates alternative elements. Type any one of the elements. Do not type the vertical bar.
... Repeatable. An ellipsis ( ... ) indicates that you can repeat the syntax element as often as required.

Description

The flatMap() step is a general flatMap step. This step creates a map of the traversal objects and streams the map to the next traversal step.

Examples

Return a map of the recipe properties included in the cookbooks in the graph, but limit the return to 3 recipes:
g.V().hasLabel('book').flatMap(__.in('includedIn').hasLabel('recipe').limit(3))