Gremlin YAML Transaction Example

gremlin-neo4j.yaml

outE: |
  g.v($_id).outE($label)

inE: |
  g.v($_id).inE($label)

bothE: | 
  g.v($_id).bothE($label)

outV: |
  g.v($_id).outV($label)

inV: |
  g.v($_id).inV($label)

bothV: | 
  g.v($_id).bothV($label)

# vars: data, index_name, keys
create_indexed_vertex: |
  import groovy.json.JsonSlurper
  def slurper = new JsonSlurper()

  keys = data = null
  if ('$keys' != 'null')
    keys = slurper.parseText('$keys')  
  if ('$data' != 'null')
    data = slurper.parseText('$data')

  manager = g.getRawGraph().index()
  index = manager.forNodes('$index_name')

  g.setMaxBufferSize(0)
  g.startTransaction()
  vertex = g.getRawGraph().createNode()
  for (entry in data.entrySet()) {
    if (entry.value == null) continue;
    vertex.setProperty(entry.key,entry.value)
    if (keys == null || keys.contains(entry.key))
        index.add(vertex,entry.key,entry.value)
  }
  g.stopTransaction(TransactionalGraph.Conclusion.SUCCESS)
  return vertex