Hi there,
Trying to find all paths between 2 vertices using Gremlin/Groovy
This query returns many paths
g.v("#21:7").as("person").both("RELATED").loop("person"){it.object.id !=
"#16:10" && it.loops < 4}.path
so, I'm trying to filter out unwanted using filter or has
g.v("#21:7").as("person").both("RELATED").loop("person"){it.object.id !=
"#16:10" && it.loops < 4}.filter{it.id == '#16:10'}.path
or
g.v("#21:7").as("person").both("RELATED").loop("person"){it.object.id !=
"#16:10" && it.loops < 4}.has('@rid','#16:10').path()
both of these queries return nothing. However, using Java API
OrientGraph graph =
DatabaseManager.getInstance().getDatabase("remote:192.168.200.128/ePersona").getConnection();
final Vertex src = graph.getVertex("#21:7");
final Vertex target = graph.getVertex("#16:10");
long start = System.currentTimeMillis();
GremlinPipeline pipe = new GremlinPipeline(src).as("person");
List path = pipe.both("RELATED").except("person").loop("person",
new PipeFunction<LoopPipe.LoopBundle, Boolean>() {
@Override
public Boolean compute(LoopPipe.LoopBundle loopBundle) {
return loopBundle.getLoops() < 4 &&
((Vertex)loopBundle.getObject()).getId()!=src.getId() &&
((Vertex)loopBundle.getObject()).getId()!= target.getId() ;
}
}).filter(new PipeFunction<Vertex, Boolean>() {
@Override
public Boolean compute(Vertex o) {
return o.getId() == target.getId();
}
}).path().toList();
path - contains 153 accurate results.
Question: What's wrong with Groovy queries, which are using filter/has ?
Thanks!
-Andrey
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