[TINKERPOP-2709] Avoid need to fold() to addAll for sack()

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.5.2
• Component/s: process
• Assignee: Unassigned
• Reporter: Stephen Mallette
• Created: 21/Feb/22 21:00
• Updated: 21/Feb/22 21:00

Description

If you want to maintain a collection of things in a sack you can use addAll to combine lists/maps:
 

gremlin> g.V(3).valueMap('city').sack(assign).by(fold()).V(4).sack(addAll).by(fold()).sack()
==>[[city:[Austin]],v[4]]   

It would be nice to be able to do that without having to manually by(fold()) and simply assume that if an object is not a collection it is meant to go into one by virtual of using addAll. Or perhaps addAll should be reserved for combining collections and we should have a add operator that will add to a collection. There are multiple ways it could probably be done.