match
Provides a more declarative form of graph querying based on pattern matching.
Synopsis
match(traversal_fragment, ... )
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 match()
step is a map step
provides a more declarative form of graph querying based on pattern matching.
Examples
Find the ingredients in the recipe for Beef
Bourguignon:
g.V().match(
__.as('INGREDIENT').hasLabel('ingredient'),
__.as('INGREDIENT').out('includedIn').has('name','Beef Bourguignon')).
select('INGREDIENT').by('name')