[TINKERPOP-822] Neo4j GraphStep with element arguments ignores has

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-incubating
• Fix Version/s: 3.0.1-incubating, 3.1.0-incubating
• Component/s: neo4j, tinkergraph
• Labels: breaking
• Assignee: Stephen Mallette
• Reporter: Geoff Reedy
• Created: 01/Sep/15 04:42
• Updated: 01/Sep/15 13:47
• Resolved: 01/Sep/15 13:47

Description

When a neo4j traversal is started with explicit elements these elements are returned even if they do not satisfy has filters that have been merged into the start step. For example:

gremlin> graph = Neo4jGraph.open('/tmp/neo4j')
==>neo4jgraph[EmbeddedGraphDatabase [/tmp/neo4j]]
gremlin> v0 = graph.addVertex(label, "foo")
==>v[0]
gremlin> g = graph.traversal()
==>graphtraversalsource[neo4jgraph[EmbeddedGraphDatabase [/tmp/neo4j]], standard]
gremlin> g.V(v0).has(label, "bar")
==>v[0]
gremlin> g.V(v0).map{it.get()}.has(label, "bar") // map prevents has from merging into start step
gremlin> g.V(v0).has("a", "b")
==>v[0]