sack

Read and write sacks.

Synopsis

sack(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 sack() step is a map/sideEffect step that is used to read or write sacks, local data structures that traversers use.

Examples

g.withSack(0).V().
  has("person", "name", "John Doe").    
  outE("reviewed").                       
    sack(sum).by("stars").              
  outV().                                
  sack()