[TINKERPOP-2310] Reduce Traversal.isRoot() to a check of EmptyStep

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Done
• Affects Version/s: 3.5.0
• Fix Version/s: 3.5.0
• Component/s: process
• Labels: breaking
• Assignee: Stephen Mallette
• Reporter: Stephen Mallette
• Created: 04/Nov/19 12:43
• Updated: 18/Nov/19 11:18
• Resolved: 18/Nov/19 11:18

Description

The Traversal.isRoot() default implementation looks like:

        public default boolean isRoot() {
            return null == getParent() || getParent() instanceof EmptyStep;
        }

Could this be reduced to just a check of EmptyStep - i.e. can the parent never be null

Issue Links

• links to: GitHub Pull Request #1216