Ensure unique nodes with neo4jclient -

is there way ensure uniqueness when creating node neo4jclient?

this link transactions shows how using java , transactions, don't see transaction support in neo4jclient. able using explicit cypher string query this:

"start n=node:node_auto_index(name={id})   count(*) c   c=0   create x={name:{id}}   return c" 

but hack. there better way?

transaction support come neo4j 2.0 , later version of neo4jclient. issue tracking work: https://bitbucket.org/readify/neo4jclient/issue/91/support-cypher-transactions-integrated

that doesn't give uniqueness though...

neo4j doesn't have unique indexes auto-enforce idea. (i expect we'll see neo4j 2.0 labels in future, not yet.)

you need either a) know you're creating unique, or b) check first.

you seem taking b route.

transactions allow check create within single transactional action, still multiple calls on wire.

the cypher text you've written out preferred: check , create in single statement. i'm intrigued know why think hack.

you can execute statement via neo4jclient like:

var id = 123; graphclient.cypher     .start(new { n = node.byindexlookup("node_auto_index", "name", id)})     .with("count(*) c")     .where("c=0")     .create("x={0}", new mytype { name = id })     .return<node<mytype>>("c") 

some of with , where statements nice if cleaner, it's functional now.

there's cypher's create unique clause might cover scenario too.