Fredrick Eisele created TINKERPOP-2449:
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Summary: Get edges in a graph by label
Key: TINKERPOP-2449
URL: https://issues.apache.org/jira/browse/TINKERPOP-2449
Project: TinkerPop
Issue Type: Bug
Components: structure, tinkergraph
Affects Versions: 3.4.8
Environment: java with tinkergraph and tp3Version=3.4.8
Reporter: Fredrick Eisele
Given the presence of a node with a self-referential edge with label 'root' I
expect the following to get that node.
{code:java}
List<Vertex> roots = g.E("root").outV().toList();
{code}
The roots list is empty.
The following work-around gives me what I expect.
{code:java}
List<Vertex> roots = g.V().inE("root").outV().toList();
{code}
Here is a graphml fragment that illustrates the problem.
{code:xml}
<?xml version="1.0" encoding="UTF-8"?>
<graphml xmlns="http://graphml.graphdrawing.org/xmlns";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://graphml.graphdrawing.org/xmlns
http://graphml.graphdrawing.org/xmlns/1.1/graphml.xsd";>
<graph id="G" edgedefault="directed">
<node id="0">
<data key="labelV">BLANK</data>
</node>
<node id="1">
<data key="labelV">component</data>
</node>
<edge id="2" source="1" target="1">
<data key="labelE">root</data>
</edge>
</graph>
</graphml>
{code}
I believe this has been a problem for a while...
https://groups.google.com/g/gremlin-users/c/wVOnJAvHSSU
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