Conversion of query from cypher to gremlin

Question

I have cypher query:
MATCH p=(c:Customer)-[:HAS_LOCATION|HAS_EMAIL|HAS_PHONE*1..25]-(n)
return p

Now I want same query in gremlin .I have written this for gremlin is it right or can we write more optimized query

g.V().hasLabel('Customer').as('c')
  .repeat(
    both('HAS_LOCATION', 'HAS_EMAIL', 'HAS_PHONE')
      .simplePath()
  )
  .times(1, 25)
  .path()
  .from('c')
  .toList()

Accepted Answer

A similar query in Gremlin would be:
```
g.V().hasLabel('Customer').
    repeat(bothE('HAS_LOCATION', 'HAS_EMAIL', 'HAS_PHONE') .otherV().simplePath()).
    emit().
    times(25).
    path().by(elementMap())
```

One thing to realize is that openCypher and Gremlin differ in how they build paths.  By default, openCypher will only cross an edge once.  With Gremlin and using `simplePath()`, a vertex/node is only traversed once.

This could also be an expensive query to execute if there are many nodes with a label of `Customer`.  I would suggest that if using Neptune that you look to constrain the starting point for this query to one, or a subset, of starting nodes.

Conversion of query from cypher to gremlin

関連するコンテンツ