Hi All,
I am fairly new to OrientDB. I am using OrientDB version 2.1.4. I am
using blueprints-core-2.6.0 Java API for processing.
I am trying to do the following tasks, but i am not able to achieve the
targeted performance. Request you to please suggest in case there is any
better way to do the same.
1) Retrieve and Create a Vertex -
The differentiating property for the Vertex is "Name",
Is there a method using which I can directly create a vertex and it will
merge into an existing vertex of "Name" xyz if exists. Rest of the
properties on the vertex should get updated.
if (graph.getVertices(keyName, key).iterator().hasNext()) {
vertex = (OrientVertex) graph.getVertices(keyName, key)
.iterator().next();
} else {
vertex = graph.addVertex(className, attributeName, key);
}
2. Aggregate functions via connected Edges
For Eg. if I have two Classes extending V ; Device (Name,
ActiveSessionCount) ->"has" -> Ports (Name, ActiveSessionCount)
How can I do something like - sum(out("has").ActiveSessionCount) from
Device where Name = 'xyz'
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