Hi All
I have a requirement where I must check if there is an already
existing relationship between two nodes (say N1 and N2). Right now,
I'm doing it as follows:
boolean found = false;
final Iterable<Relationship> currentRels =
N1.getRelationships(RelTypes.KNOWS, Direction.OUTGOING);
for (Relationship rel : currentRels) {
found = rel.getEndNode().equals(N2);
if (found) {
do something - like add some property to the existing relationship;
break;
}
}
if (!found) {
create new relationship between N1 and N2;
}
This means, for a high volume of data, all the relations going out of
N1 will be retrieved and checked - and this seems costly. I'm using
the 1.0 API, and wasn't able to find anything that would directly
check whether N1 has an outgoing relationship with N2 - like
N1.hasRelationship(N2, Direction.OUTGOING) - or something similar. I
think there was a similar mail sometime ago. Has there been any
updates lately which allows such checks? Or, is there any other direct
way to do this with the 1.0 API?
Regards
Arijit
--
"And when the night is cloudy,
There is still a light that shines on me,
Shine on until tomorrow, let it be."
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