Important | Queries for edge label connections
I need a solution for these two things, but I tried but was not able to find the solution.
1. I want to list the edgeLabel connection created in janusgraph
mgmt.addConnection(“belongsTo”, vertexLabel1, vertexLabel2);
mgmt.addConnection("belongsTo", vertexLabel1, vertexLabel3);
mgmt.addConnection("belongsTo", vertexLabel3, vertexLabel4);
mgmt.addConnection("belongsTo", vertexLabel5, vertexLabel6);
Can see only edge labels in printSchema but not how many time it used between Vertex labels. which is created after above steps.
2. I want to update the direction of one connection of edgeLabel.
current -> mgmt.addConnection(“belongsTo”, vertexLabel1, vertexLabel2); //outdirection towards the vertexLabel2
I want to update the direction of this created connection. like below
Expected Direction --> mgmt.addConnection(“belongsTo”, vertexLabel2 ,vertexLabel1); // I want only one kind of direction to exist between these 2 nodes types. If this option creates another connection then I want the previous direction to be removed.
Please review and let me know how I can achieve this. Thanks in advance.
Regarding your first question, try this in Java:
which should give you a list of Java objects that contain the outgoing and incoming labels for each connection.
In the Gremlin console, you could do this:
mgmt.getEdgeLabel("knows").mappedConnections().incomingVertexLabelwhich is a bit hacky but hopefully shall work. Feel free to create a feature request on GitHub and link to this thread.
Regarding your second question, IIRC there is no such API available.