How to perform an atomic inserts?

[Dave]

Hi

I'd like to know what is the recommended approach for achieving the atomic insert of a group of vertices and edges into a graph using bytecode queries and a remote Gremlin server?

I assumed that I should be using a single graph traversal, add the new elements and their properties and then commit with a terminal step, is this correct?

The reason I ask is that I keep coming up against issues that just don't occur if I use distinct traversals and don't worry about whether the inserts are atomic or not.

Thanks,

Dave

[Fabio Lorenzi]

You can read about transactions here http://tinkerpop.apache.org/docs/current/reference/#transactions

Given bytecode traversals sent to a remote gremlin server, the traversal is treated as an atomic operation (persisted on success, rolled back on failure)

so...

>  I assumed that I should be using a single graph traversal, add the new elements and their properties and then commit with a terminal step, is this correct?

sounds like the correct approach.

[Dave]

Okay, thanks for the confirmation.

[Stephen Mallette]

One thing to remember with transactions is that their behavior is somewhat dependent on the underlying graph database you are using. In other words, Gremlin Server will auto-commit for you at the end of the traversal execution and rollback on error, but the definition of commit() and rollback() is dependent on the graph itself. Make sure that you know how your graph works before making too many assumptions about what commit() and rollback() mean.

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