Matt Frantz created TINKERPOP3-969:
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Summary: respawn
Key: TINKERPOP3-969
URL: https://issues.apache.org/jira/browse/TINKERPOP3-969
Project: TinkerPop 3
Issue Type: Improvement
Components: process
Affects Versions: 3.0.2-incubating
Reporter: Matt Frantz
Assignee: Marko A. Rodriguez
Control which aspects of the traverser propagate into an inner traversal by
using the {{respawn}} factory method.
{noformat}
// Clone only the location by default.
g.V.map(respawn().out('mother').name)
// Clone sack and path
g.V.as('a').map(
respawn(sack,path).
sack().as('s').select('a','s'))
{noformat}
We would also like to allow the inner traversal to have its own sack and
side-effect scope. This would require something that returns a
{{GraphTraversalSource}}, e.g. {{respawnSource}}. That also means that
{{GraphTraversalSource}} needs a new step, e.g. {{identity}}, that would allow
it to be used as an inner traversal.
{noformat}
// can have its own sack definition
g.V.map(respawnSource().withSack(0.0).identity().out()...)
{noformat}
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