OrientDB batch commands on unique edges and vertices - orientdb

Question

Suppose I want to create a set of unique edges and vertices.
create vertex A set etc.
create vertex B set etc.
create edge AB, create edge AC,
And all of these edges and vertices are unique--so some of the commands will likely fail when they are unique.
How do I batch these commands such that I am guaranteed all commands will be run, even when some commands fail?

Answer 1

I tried your case, I have a Vertex class with a name property (unique index), you can execute batch commands in different ways:
Studio
begin
LET a = create vertex User set name = 'John'
LET b = create vertex User set name = 'Jane'
LET c = create edge FriendOf from $a to $b
commit retry 100
return $c
Java API
OrientGraph g=new OrientGraph(currentPath);
String cmd = "begin\n";
cmd += "let $user2 = UPDATE User SET user_id = 'userX' UPSERT RETURN AFTER #rid WHERE user_id = 'userX'\n";
cmd += "let $service = UPDATE Service SET service = 'serviceX' UPSERT RETURN AFTER #rid WHERE service = 'serviceX'\n";
cmd += "CREATE edge link FROM $user2 TO $service\n";
cmd += "commit";
g.command(new OCommandScript("sql", cmd)).execute();
Console
create a .txt file with your code like this:
connect remote:localhost/stack49801389 root root
begin
create vertex User set name = 'John'
create vertex User set name = 'Jane'
create edge FriendOf from $a to $b
commit retry 100
return $c
and then run it by console
For more information you can take a look at this link
Hope it helps
Regards