@Override
public BinaryEdge createEdge(Vertex startVertex, Vertex endVertex) {
return new BinaryEdgeImpl(
db,
startVertex
.getNode()
.createRelationshipTo(endVertex.getNode(), this.getRelationshipType())
.getId());
}
@Override
public BinaryEdge getSingleBinaryEdge(Vertex vertex, Direction dir) {
Relationship rel = vertex.getNode().getSingleRelationship(getRelationshipType(), dir);
if (rel == null) {
return null;
} else {
return new BinaryEdgeImpl(db, rel.getId());
}
}
@Override
public boolean hasEdge(Vertex vertex) {
return vertex.getNode().hasRelationship(getRelationshipType());
}
@Override
public boolean hasEdge(Vertex vertex, Direction dir) {
return vertex.getNode().hasRelationship(getRelationshipType(), dir);
}
@Override
public Iterable<BinaryEdge> getEdges(Vertex vertex, Direction dir) {
return new RelationshipIterable(
vertex.getNode().getRelationships(this.getRelationshipType(), dir));
}
