Hi,
I was struggling to get edges persisted in OrientGraph although vertices
are stored with no problem. Not sure if I am missing here something obvious.
Example:
[code]
// NOTE: using Spring in my code
Graph graph = ...
Vertex a = graph.addVertex("class:A");
Vertex b = graph.addVertex("class:B");
// NOTE: 1st try not working
Edge edge = graph.addEdge(null, b, a, "has");
// NOTE: 2st try not working
edge = b.addEdge("has", a);
graph.shutdown();
[/code]
But: as soon as I add any property to the edge (e. g.
edge.setProperty("uid", ...) ) it gets persisted.
Is this intentional? As far as I can remember there is no indication in the
docs about this behavior (neither OrientDB nor Tinkerpop).
Thanks in advance for any clarifications.
Cheers,
Aleks
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