[TINKERPOP-1206] ExpandableIterator can take a full TraverserSet at once -- Barriers.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.1-incubating
• Fix Version/s: 3.2.0-incubating
• Component/s: process
• Assignee: Marko A. Rodriguez
• Reporter: Marko A. Rodriguez
• Created: 05/Mar/16 01:53
• Updated: 17/Mar/16 13:52
• Resolved: 17/Mar/16 13:52

Description

I haven't looked at ExpandableIterator in over a year. Its one of the most fundamental structures of a Gremlin traversal. I just realized it can take an entire TraverserSet. As such, if the previous step is a Barrier, don't iterate the barrier out, simply "dump it" into the current steps ExpandableIterator. That should speed up things significantly – though there are not that many barrier steps... but still.